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1.
PLoS One ; 19(5): e0302369, 2024.
Article En | MEDLINE | ID: mdl-38722924

BACKGROUND: Maternal mortality is a critical indicator of healthcare quality, and in Mexico, this has become increasingly concerning due to the stagnation in its decline, alongside a concurrent increase in cesarean section (C-section) rates. This study characterizes maternal deaths in Mexico, focusing on estimating the association between obstetric risk profiles, cause of death, and mode of delivery. METHODS: Utilizing a retrospective observational design, 4,561 maternal deaths in Mexico from 2010-2014 were analyzed. Data were sourced from the Deliberate Search and Reclassification of Maternal Deaths database, alongside other national databases. An algorithm was developed to extract the Robson Ten Group Classification System from clinical summaries text, facilitating a nuanced analysis of C-section rates. Information on the reasons for the performance of a C-section was also obtained. Logistic regression and multinomial logistic regression models were used to estimate the relation between obstetric risk factors, mode of delivery and causes of maternal death, adjusting for covariates. RESULTS: Among maternal deaths in Mexico from 2010-2014, 47.1% underwent a C-section, with a significant history of previous C-sections observed in 31.4% of these cases, compared to 17.4% for vaginal deliveries (p<0.001). Early prenatal care in the first trimester was more common in C-section cases (46.8%) than in vaginal deliveries (38.3%, p<0.001). A stark contrast was noted in the place of death, with 82.4% of post-C-section deaths occurring in public institutions versus 69.1% following vaginal births. According to Robson's classification, the highest C-section rates were in Group 4 (67.2%, p<0.001) and Group 8 (66.9%, p<0.001). Logistic regression analysis revealed no significant difference in the odds of receiving a C-section in private versus other settings after adjusting for Robson criteria (OR: 1.21; 95% CI: 0.92, 1.60). A prior C-section significantly increased the likelihood of another (OR: 2.38; CI 95%: 2.01, 2.81). The analysis also indicated C-sections were significantly tied to deaths from hypertensive disorders (RRR = 1.25, 95% CI [1.12, 1.40]). In terms of indications, 6.3% of C-sections were performed under inadequate indications, while the indication was not identifiable in 33.1% of all C-sections. CONCLUSIONS: This study highlights a significant overuse of C-sections among maternal deaths in Mexico (2010-2014), revealed through the Robson classification and ana analysis of the reported indications for the procedure. It underscores the need for revising clinical decision-making to promote evidence-based guidelines and favor vaginal deliveries when possible. High C-section rates, especially noted disparities between private and public sectors, suggest economic and non-clinical factors may be at play. The importance of accurate data systems and further research with control groups to understand C-section practices' impact on maternal health is emphasized.


Cesarean Section , Maternal Mortality , Humans , Female , Mexico/epidemiology , Cesarean Section/statistics & numerical data , Adult , Pregnancy , Retrospective Studies , Risk Factors , Cause of Death , Young Adult , Maternal Death/statistics & numerical data , Adolescent , Prenatal Care/statistics & numerical data , Delivery, Obstetric/statistics & numerical data
2.
Ig Sanita Pubbl ; 80(2): 41-58, 2024.
Article En | MEDLINE | ID: mdl-38739440

WHO defines maternal mortality as any death of a woman occurring during pregnancy or within 42 days of its termination or after delivery. Our aim was to study the factors associated with the occurrence of maternal deaths in the West Region of Cameroon between 2020 and 2022. This was a case-control study. Cases consisted of maternal deaths that occurred during the study period. The controls for their part were made up of women who normally gave birth in the same health facilities from which the cases came and during the same period as the cases. The only exposure criterion being the status of death. The data useful for our investigation were collected respectively with the investigation sheets, audit reports and via interviews with the heads of the health facilities where the maternal deaths occurred with a view to considerably reducing information bias. Analysis were done with IBM-SPSS 25 and RStudio 2023.03.0. The West Region of Cameroon recorded 161 maternal deaths between 2020 and 2022. 67% of them were housewives. The most frequently identified causes were haemorrhage (ante-, per- and post-partum), followed far behind by complications and sepsis, with respective 42.2%, 12.4% and 10.6%. Slightly more than one child out of 10 had an abnormal presentation. Nearly 50% had a short labor (less than 10 hours), the partograph was used in 38% of the women, and the GATP practiced in 50.1% of them. Abnormal presentation of the fetus (aOR = 2.7 (95% CI: 1.4 - 5.1), p=0.002), failure to use the partograph (aOR = 4.4 (95% CI: 2 .6 - 7.4), p<0.001), the fact of not having an economic activity (aOR = 1.7 (95% CI: 1.0 - 2.7), p = 0.033), the fact of having taken less than 2 doses of VAT ( aOR = 2.8 (95% CI: 1.8 - 4.4), p<0.001) and the absence of practice of GATP (aOR = 1.6 (CI 95%: 1.0 - 2.6), p=0.040) were identified as factors that significantly favored the occurrence of maternal deaths. Several factors negatively influence the occurrence of maternal deaths in the West Region. Operational strategies such as continuous training of maternity ward staff, and the establishment of systematic maternal death audits and review meetings should be implemented to reduce and control these risk factors.


Maternal Mortality , Humans , Female , Cameroon/epidemiology , Case-Control Studies , Pregnancy , Adult , Maternal Mortality/trends , Risk Factors , Pregnancy Complications/mortality , Pregnancy Complications/epidemiology , Maternal Death/statistics & numerical data , Young Adult , Adolescent , Cause of Death
3.
PLoS One ; 19(5): e0303028, 2024.
Article En | MEDLINE | ID: mdl-38768186

BACKGROUND: Understanding causes and contributors to maternal mortality is critical from a quality improvement perspective to inform decision making and monitor progress toward ending preventable maternal mortality. The indicator "maternal death review coverage" is defined as the percentage of maternal deaths occurring in a facility that are audited. Both the numerator and denominator of this indicator are subject to misclassification errors, underreporting, and bias. This study assessed the validity of the indicator by examining both its numerator-the number and quality of death reviews-and denominator-the number of facility-based maternal deaths and comparing estimates of the indicator obtained from facility- versus district-level data. METHODS AND FINDINGS: We collected data on the number of maternal deaths and content of death reviews from all health facilities serving as birthing sites in 12 districts in three countries: Argentina, Ghana, and India. Additional data were extracted from health management information systems on the number and dates of maternal deaths and maternal death reviews reported from health facilities to the district-level. We tabulated the percentage of facility deaths with evidence of a review, the percentage of reviews that met the World Health Organization defined standard for maternal and perinatal death surveillance and response. Results were stratified by sociodemographic characteristics of women and facility location and type. We compared these estimates to that obtained using district-level data. and looked at evidence of the review at the district/provincial level. Study teams reviewed facility records at 34 facilities in Argentina, 51 facilities in Ghana, and 282 facilities in India. In total, we found 17 deaths in Argentina, 14 deaths in Ghana, and 58 deaths in India evidenced at facilities. Overall, >80% of deaths had evidence of a review at facilities. In India, a much lower percentage of deaths occurring at secondary-level facilities (61.1%) had evidence of a review compared to deaths in tertiary-level facilities (92.1%). In all three countries, only about half of deaths in each country had complete reviews: 58.8% (n = 10) in Argentina, 57.2% (n = 8) in Ghana, and 41.1% (n = 24) in India. Dramatic reductions in indicator value were seen in several subnational geographic areas, including Gonda and Meerut in India and Sunyani in Ghana. For example, in Gonda only three of the 18 reviews conducted at facilities met the definitional standard (16.7%), which caused the value of the indicator to decrease from 81.8% to 13.6%. Stratification by women's sociodemographic factors suggested systematic differences in completeness of reviews by women's age, place of residence, and timing of death. CONCLUSIONS: Our study assessed the validity of an important indicator for ending preventable deaths: the coverage of reviews of maternal deaths occurring in facilities in three study settings. We found discrepancies in deaths recorded at facilities and those reported to districts from facilities. Further, few maternal death reviews met global quality standards for completeness. The value of the calculated indicator masked inaccuracies in counts of both deaths and reviews and gave no indication of completeness, thus undermining the ultimate utility of the measure in achieving an accurate measure of coverage.


Maternal Death , Maternal Mortality , Humans , Female , Maternal Mortality/trends , Retrospective Studies , Maternal Death/statistics & numerical data , Ghana/epidemiology , Pregnancy , India/epidemiology , Argentina/epidemiology , Health Facilities/statistics & numerical data , Medical Records/statistics & numerical data , Adult
4.
BMJ Open ; 14(5): e081996, 2024 May 27.
Article En | MEDLINE | ID: mdl-38802274

OBJECTIVE: To assess the potential associations between social determinants of health (SDH) and severe maternal outcomes (SMO), to better understand the social structural framework and the contributory, non-clinical mechanisms associated with SMO. STUDY DESIGN: Prospective observational study. STUDY SETTING: Tertiary referral centre in south-eastern region of India. PARTICIPANTS: One thousand and thirty-three women with potentially life-threatening complications (PLTC) were identified using WHO criteria. RISK FACTORS ASSESSED: Social Determinants of Health (SDH). PRIMARY OUTCOMES: Severe maternal outcomes, which include maternal near-miss and maternal death. STATISTICAL ANALYSIS: Logistic regression to assess the association between SDH and clinical factors on SMO, expressed as adjusted ORs (aOR) with a 95% CI. RESULTS: Of the 37 590 live births, 1833 (4.9%) sustained PLTC, and 380 (20.7%) developed SMO. Risk of SMO was higher with increasing maternal age (adjusted OR (aOR) 1.04 (95% CI 1.01 to 1.07)), multiparity (aOR 1.44 (1.10 to 1.90)), medical comorbidities (aOR 1.50 (1.11 to 2.02)), obstetric haemorrhage (aOR 4.63 (3.10 to 6.91)), infection (aOR 2.93 (1.83 to 4.70)), delays in seeking care (aOR 3.30 (2.08 to 5.23)), and admissions following a referral (aOR 2.95 (2.21 to 3.93)). SMO was lower in patients from socially backward community (aOR 0.45 (0.33 to 0.61)), those staying more than 10 km from hospital (aOR 0.56 (0.36 to 0.78)), those attending at least four antenatal visits (aOR=0.53 (0.36 to 0.78)) and those referred from resource-limited facilities (aOR=0.62 (0.46 to 0.84)). CONCLUSION: This study demonstrates the independent contribution of SDH to SMO among those sustaining PLTC in a middle-income setting, highlighting the need to formulate preventive strategies beyond clinical considerations.


Near Miss, Healthcare , Pregnancy Complications , Social Determinants of Health , Humans , Female , Pregnancy , Social Determinants of Health/statistics & numerical data , Adult , Prospective Studies , Near Miss, Healthcare/statistics & numerical data , Pregnancy Complications/epidemiology , India/epidemiology , Risk Factors , Young Adult , Maternal Mortality , Logistic Models , Maternal Death/statistics & numerical data , Maternal Death/etiology , Parity
5.
PLoS One ; 19(5): e0293197, 2024.
Article En | MEDLINE | ID: mdl-38758946

BACKGROUND: A maternal mortality ratio is a sensitive indicator when comparing the overall maternal health between countries and its very high figure indicates the failure of maternal healthcare efforts. Cambodia, Laos, Myanmar, and Vietnam-CLMV countries are the low-income countries of the South-East Asia region where their maternal mortality ratios are disproportionately high. This systematic review aimed to summarize all possible factors influencing maternal mortality in CLMV countries. METHODS: This systematic review applied "The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Checklist (2020)", Three key phrases: "Maternal Mortality and Health Outcome", "Maternal Healthcare Interventions" and "CLMV Countries" were used for the literature search. 75 full-text papers were systematically selected from three databases (PubMed, Google Scholar and Hinari). Two stages of data analysis were descriptive analysis of the general information of the included papers and qualitative analysis of key findings. RESULTS: Poor family income, illiteracy, low education levels, living in poor households, and agricultural and unskilled manual job types of mothers contributed to insufficient antenatal care. Maternal factors like non-marital status and sex-associated work were highly associated with induced abortions while being rural women, ethnic minorities, poor maternal knowledge and attitudes, certain social and cultural beliefs and husbands' influences directly contributed to the limitations of maternal healthcare services. Maternal factors that made more contributions to poor maternal healthcare outcomes included lower quintiles of wealth index, maternal smoking and drinking behaviours, early and elderly age at marriage, over 35 years pregnancies, unfavourable birth history, gender-based violence experiences, multigravida and higher parity. Higher unmet needs and lower demands for maternal healthcare services occurred among women living far from healthcare facilities. Regarding the maternal healthcare workforce, the quality and number of healthcare providers, the development of healthcare infrastructures and human resource management policy appeared to be arguable. Concerning maternal healthcare service use, the provisions of mobile and outreach maternal healthcare services were inconvenient and limited. CONCLUSION: Low utilization rates were due to several supply-side constraints. The results will advance knowledge about maternal healthcare and mortality and provide a valuable summary to policymakers for developing policies and strategies promoting high-quality maternal healthcare.


Maternal Death , Maternal Mortality , Humans , Female , Myanmar/epidemiology , Cambodia/epidemiology , Laos/epidemiology , Pregnancy , Vietnam/epidemiology , Maternal Death/statistics & numerical data , Prenatal Care/statistics & numerical data , Maternal Health Services/statistics & numerical data
6.
Public Health ; 231: 15-22, 2024 Jun.
Article En | MEDLINE | ID: mdl-38593681

OBJECTIVE: This study comprehensively analyzed the temporal and spatial dynamics of COVID-19 cases and deaths within the obstetric population in Brazil, comparing the periods before and during mass COVID-19 vaccination. We explored the trends and geographical patterns of COVID-19 cases and maternal deaths over time. We also examined their correlation with the SARS-CoV-2 variant circulating and the social determinants of health. STUDY DESIGN: This is a nationwide population-based ecological study. METHODS: We obtained data on COVID-19 cases, deaths, socioeconomic status, and vulnerability information for Brazil's 5570 municipalities for both the pre-COVID-19 vaccination and COVID-19 vaccination periods. A Bayesian model was used to mitigate indicator fluctuations. The spatial correlation of maternal cases and fatalities with socioeconomic and vulnerability indicators was assessed using bivariate Moran. RESULTS: From March 2020 to June 2023, a total of 23,823 cases and 1991 maternal fatalities were recorded among pregnant and postpartum women. The temporal trends in maternal incidence and mortality rates fluctuated over the study period, largely influenced by widespread COVID-19 vaccination and the dominant SARS-CoV-2 variant. There was a significant reduction in maternal mortality due to COVID-19 following the introduction of vaccination. The geographical distribution of COVID-19 cases and maternal deaths exhibited marked heterogeneity in both periods, with distinct spatial clusters predominantly observed in the North, Northeast, and Central West regions. Municipalities with the highest Human Development Index reported the highest incidence rates, while those with the highest levels of social vulnerability exhibited elevated mortality and fatality rates. CONCLUSION: Despite the circulation of highly transmissible variants of concern, maternal mortality due to COVID-19 was significantly reduced following the mass vaccination. There was a heterogeneous distribution of cases and fatalities in both periods (before and during mass vaccination). Smaller municipalities and those grappling with social vulnerability issues experienced the highest rates of maternal mortality and fatalities.


COVID-19 Vaccines , COVID-19 , SARS-CoV-2 , Humans , COVID-19/mortality , COVID-19/prevention & control , COVID-19/epidemiology , Brazil/epidemiology , Female , COVID-19 Vaccines/administration & dosage , Pregnancy , Maternal Mortality/trends , Mass Vaccination/statistics & numerical data , Bayes Theorem , Pregnancy Complications, Infectious/prevention & control , Pregnancy Complications, Infectious/epidemiology , Maternal Death/statistics & numerical data , Adult , Socioeconomic Factors
7.
J Obstet Gynaecol Can ; 46(4): 102349, 2024 Apr.
Article En | MEDLINE | ID: mdl-38190888

OBJECTIVE: Knowledge regarding the antecedent clinical and social factors associated with maternal death around the time of pregnancy is limited. This study identified distinct subgroups of maternal deaths using population-based coroner's data, and that may inform ongoing preventative initiatives. METHODS: A detailed review of coroner's death files was performed for all of Ontario, Canada, where there is a single reporting mechanism for maternal deaths. Deaths in pregnancy, or within 365 days thereafter, were identified within the Office of the Chief Coroner for Ontario database, 2004-2020. Variables related to the social and clinical circumstances surrounding the deaths were abstracted in a standardized manner from each death file, including demographics, forensic information, nature and cause of death, and antecedent health and health care factors. These variables were then entered into a latent class analysis (LCA) to identify distinct types of deaths. RESULTS: Among 273 deaths identified in the study period, LCA optimally identified three distinct subgroups, namely, (1) in-hospital deaths arising during birth or soon thereafter (52.7% of the sample); (2) accidents and unforeseen obstetric complications also resulting in infant demise (26.3%); and (3) out-of-hospital suicides occurring postpartum (21.0%). Physical injury (22.0%) was the leading cause of death, followed by hemorrhage (16.8%) and overdose (13.3%). CONCLUSION: Peri-pregnancy maternal deaths can be classified into three distinct sub-types, with somewhat differing causes. These findings may enhance clinical and policy development aimed at reducing pregnancy mortality.


Coroners and Medical Examiners , Latent Class Analysis , Maternal Mortality , Humans , Female , Ontario/epidemiology , Pregnancy , Adult , Cause of Death , Maternal Death/statistics & numerical data , Pregnancy Complications/mortality , Young Adult
9.
Sex Reprod Healthc ; 36: 100842, 2023 Jun.
Article En | MEDLINE | ID: mdl-37028239

BACKGROUND: The United States has one of the highest maternal mortality rates of developing countries, but the contribution of perinatal drug overdose is not known. Communities of color also have higher rates of maternal morbidity and mortality when compared to White communities, however the contribution due to overdose has not yet been examined in this population. OBJECTIVES: To quantify the years of life lost due to unintentional overdose in perinatal individuals from 2010 to 2019 and assess for disparity by race. STUDY DESIGN: This was a cross-sectional retrospective study with summary-level mortality statistics for the years 2010-2019 obtained from the Centers for Disease Control (CDC) Wide-Ranging Online Data for Epidemiologic Research (WONDER) mortality file. A total of 1,586 individuals of childbearing age (15-44 years) who died during pregnancy or six weeks postpartum (perinatal) from unintentional overdose in the United States from January 1, 2010 to December 31, 2019 were included. Total years of life lost (YLL) was calculated and summated for White, Black, Hispanic, Asian/Pacific Islander, and American Indian/Native Alaska women. Additionally, the top three overall causes of death were also identified for women in this age group for comparison. RESULTS: Unintentional drug overdose accounted for 1,586 deaths and 83,969.78 YLL in perinatal individuals from 2010 to 2019 in the United States. Perinatal American Indian/Native American individuals had a disproportionate amount of YLL when compared to other ethnic groups, with 2.39% of YLL due to overdose, while only making up 0.80% of the population. During the last two years of the study, only American Indian/Native American and Black individuals had increased rates of mortality when compared to other races. During the ten-year study period, when including the top three causes of mortality, unintentional drug overdoses made up 11.98% of the YLL overall and 46.39% of accidents. For the years 2016-2019, YLL due to unintentional overdose was the third leading cause of YLL overall for this population. CONCLUSIONS: Unintentional drug overdose is a leading cause of death for perinatal individuals in the United States, claiming nearly 84,000 years of life over a ten-year period. When examining by race, American Indian/Native American women are most disproportionately affected.


Drug Overdose , Maternal Mortality , Adolescent , Adult , Female , Humans , Pregnancy , Young Adult , Cross-Sectional Studies , Drug Overdose/epidemiology , Drug Overdose/ethnology , Ethnicity , Hispanic or Latino/statistics & numerical data , Retrospective Studies , United States/epidemiology , Maternal Mortality/ethnology , Postpartum Period , Peripartum Period , Maternal Death/ethnology , Maternal Death/statistics & numerical data , Black or African American/statistics & numerical data , White/statistics & numerical data , Asian American Native Hawaiian and Pacific Islander/statistics & numerical data , American Indian or Alaska Native/statistics & numerical data
10.
Obstet Gynecol ; 141(1): 109-118, 2023 01 01.
Article En | MEDLINE | ID: mdl-36357949

OBJECTIVE: To evaluate whether delivering during the early the coronavirus disease 2019 (COVID-19) pandemic was associated with increased risk of maternal death or serious morbidity from common obstetric complications compared with a historical control period. METHODS: This was a multicenter retrospective cohort study with manual medical-record abstraction performed by centrally trained and certified research personnel at 17 U.S. hospitals. Individuals who gave birth on randomly selected dates in 2019 (before the pandemic) and 2020 (during the pandemic) were compared. Hospital, health care system, and community risk-mitigation strategies for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in response to the early COVID-19 pandemic are described. The primary outcome was a composite of maternal death or serious morbidity from common obstetric complications, including hypertensive disorders of pregnancy (eclampsia, end organ dysfunction, or need for acute antihypertensive therapy), postpartum hemorrhage (operative intervention or receipt of 4 or more units blood products), and infections other than SARS-CoV-2 (sepsis, pelvic abscess, prolonged intravenous antibiotics, bacteremia, deep surgical site infection). The major secondary outcome was cesarean birth. RESULTS: Overall, 12,133 patients giving birth during and 9,709 before the pandemic were included. Hospital, health care system, and community SARS-CoV-2 mitigation strategies were employed at all sites for a portion of 2020, with a peak in modifications from March to June 2020. Of patients delivering during the pandemic, 3% had a positive SARS-CoV-2 test result during pregnancy through 42 days postpartum. Giving birth during the pandemic was not associated with a change in the frequency of the primary composite outcome (9.3% vs 8.9%, adjusted relative risk [aRR] 1.02, 95% CI 0.93-1.11) or cesarean birth (32.4% vs 31.3%, aRR 1.02, 95% CI 0.97-1.07). No maternal deaths were observed. CONCLUSION: Despite substantial hospital, health care, and community modifications, giving birth during the early COVID-19 pandemic was not associated with higher rates of serious maternal morbidity from common obstetric complications. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov, NCT04519502.


COVID-19 , Delivery, Obstetric , Maternal Death , Morbidity , Female , Humans , Pregnancy , Cesarean Section , COVID-19/epidemiology , Parturition , Retrospective Studies , Maternal Death/statistics & numerical data , Delivery, Obstetric/adverse effects , Delivery, Obstetric/statistics & numerical data , Time Factors , Risk Assessment
11.
Rev. baiana enferm ; 37: e52716, 2023. tab, graf
Article Pt | LILACS, BDENF | ID: biblio-1529680

Objetivo: realizar um levantamento do perfil epidemiológico, assistencial e causal da mortalidade materna nos municípios de abrangência geográfica de uma Superintendência Regional de Saúde localizada no interior de Minas Gerais no período de 2004 a 2018. Método: estudo epidemiológico observacional descritivo, quantitativo, com análise de dados obtidos do Departamento de Informática do Sistema Único de Saúde, Declarações de Óbito e Fichas de Investigação de Óbitos Maternos. Resultados: dos 19 óbitos maternos analisados, 8 (42,10%) eram de mulheres de 20 a 29 anos, brancas, casadas, com 8 a 11 anos de estudo. Os óbitos ocorreram em instituições hospitalares (100,00%), destacando-se morte materna obstétrica direta (89,47%) com embolia obstétrica como causa (21,05%). Conclusão: as mortes maternas estudadas estão mais relacionadas à qualidade e acesso integral aos pontos de cuidados existentes na rede assistencial materno-infantil do que aos aspectos de vulnerabilidades sociais investigados.


Objetivo: realizar un estudio del perfil epidemiológico, asistencial y causal de la mortalidad materna en los municipios de cobertura geográfica de una Superintendencia Regional de Salud localizada en el interior de Minas Gerais en el período de 2004 a 2018. Método: estudio epidemiológico observacional descriptivo, cuantitativo, con análisis de datos obtenidos del Departamento de Informática del Sistema Único de Salud, Declaraciones de Óbito y Fichas de Investigación de Óbitos Maternos. Resultados: de los 19 óbitos maternos analizados, 8 (42,10%) eran de mujeres de 20 a 29 años, blancas, casadas, con 8 a 11 años de estudio. Los óbitos ocurrieron en instituciones hospitalarias (100,00%), destacándose muerte materna obstétrica directa (89,47%) con embolia obstétrica como causa (21,05%). Conclusión: las muertes maternas estudiadas están más relacionadas a la calidad y acceso integral a los puntos de atención existentes en la red asistencial materno-infantil que a los aspectos de vulnerabilidades sociales investigados.


Objective: to conduct a survey of the epidemiological, care and causal profile of maternal mortality in the cities of geographical coverage of a Regional Health Superintendence located in inland Minas Gerais in the period from 2004 to 2018. Method: descriptive, quantitative observational epidemiological study with data analysis obtained from the Department of Informatics of the Unified Health System, Death Certificates and Maternal Death Investigation Forms. Results: of the 19 maternal deaths analyzed, 8 (42.10%) were women aged 20 to 29 years, white, married, with 8 to 11 years of schooling. Deaths occurred in hospital institutions (100.00%), highlighting direct obstetric maternal death (89.47%) with obstetric embolism as the cause (21.05%). Conclusion: the maternal deaths studied are more related to quality and full access to existing points of care in the maternal-child care network than to the aspects of social vulnerabilities investigated.


Humans , Female , Pregnancy , Adolescent , Adult , Middle Aged , Epidemiology, Descriptive , Cause of Death , Maternal Death/statistics & numerical data
12.
JAMA ; 328(19): 1893-1895, 2022 11 15.
Article En | MEDLINE | ID: mdl-36301578

This Medical News article discusses a new report from the US Centers for Disease Control and Prevention on maternal deaths during and up to a year after pregnancy, racial disparities, and new models of care aimed at reducing maternal mortality.


Maternal Death , Pregnancy Complications , Female , Humans , Pregnancy , Cause of Death , Maternal Mortality , Pregnancy Complications/epidemiology , Pregnancy Complications/etiology , Pregnancy Complications/mortality , Pregnancy Complications/prevention & control , United States/epidemiology , Maternal Death/etiology , Maternal Death/prevention & control , Maternal Death/statistics & numerical data
13.
Ultrasound Obstet Gynecol ; 59(1): 76-82, 2022 01.
Article En | MEDLINE | ID: mdl-34672382

OBJECTIVE: Mortality in pregnancy due to coronavirus disease 2019 (COVID-19) is a current health priority in developing countries. Identification of clinical and sociodemographic risk factors related to mortality in pregnant women with COVID-19 could guide public policy and encourage such women to accept vaccination. We aimed to evaluate the association of comorbidities and socioeconomic determinants with COVID-19-related mortality and severe disease in pregnant women in Mexico. METHODS: This is an ongoing nationwide prospective cohort study that includes all pregnant women with a positive reverse-transcription quantitative polymerase chain reaction result for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from the Mexican National Registry of Coronavirus. The primary outcome was maternal death due to COVID-19. The association of comorbidities and socioeconomic characteristics with maternal death was explored using a log-binomial regression model adjusted for possible confounders. RESULTS: There were 176 (1.35%) maternal deaths due to COVID-19 among 13 062 consecutive SARS-CoV-2-positive pregnant women. Maternal age, as a continuous (adjusted relative risk (aRR), 1.08 (95% CI, 1.05-1.10)) or categorical variable, was associated with maternal death due to COVID-19; women aged 35-39 years (aRR, 3.16 (95% CI, 2.34-4.26)) or 40 years or older (aRR, 4.07 (95% CI, 2.65-6.25)) had a higher risk for mortality, as compared with those aged < 35 years. Other clinical risk factors associated with maternal mortality were pre-existing diabetes (aRR, 2.66 (95% CI, 1.65-4.27)), chronic hypertension (aRR, 1.75 (95% CI, 1.02-3.00)) and obesity (aRR, 2.15 (95% CI, 1.46-3.17)). Very high social vulnerability (aRR, 1.88 (95% CI, 1.26-2.80)) and high social vulnerability (aRR, 1.49 (95% CI, 1.04-2.13)) were associated with an increased risk of maternal mortality, while very low social vulnerability was associated with a reduced risk (aRR, 0.47 (95% CI, 0.30-0.73)). Being poor or extremely poor were also risk factors for maternal mortality (aRR, 1.53 (95% CI, 1.09-2.15) and aRR, 1.83 (95% CI, 1.32-2.53), respectively). CONCLUSION: This study, which comprises the largest prospective consecutive cohort of pregnant women with COVID-19 to date, has confirmed that advanced maternal age, pre-existing diabetes, chronic hypertension, obesity, high social vulnerability and low socioeconomic status are risk factors for COVID-19-related maternal mortality. © 2021 International Society of Ultrasound in Obstetrics and Gynecology.


COVID-19/epidemiology , Maternal Death/statistics & numerical data , Pregnancy Complications, Infectious/epidemiology , Social Vulnerability , Adult , Cohort Studies , Comorbidity , Female , Humans , Maternal Mortality , Mexico , Poverty , Pregnancy , Premature Birth/epidemiology , Prospective Studies
14.
Acta Paul. Enferm. (Online) ; 35: eAPE00251, 2022. tab
Article Pt | LILACS, BDENF | ID: biblio-1364206

Resumo Objetivo Descrever os óbitos maternos declarados e identificar o perfil epidemiológico das mulheres que foram a óbito em seu ciclo gravídico-puerperal e analisar as variáveis relacionadas à assistência no pré-natal e parto. Métodos Esta é uma pesquisa com delineamento retrospectivo com abordagem quantitativa do tipo levantamento. A população estudada foi constituída por mulheres que foram a óbito em seu período gravídico-puerperal, residentes em um dos 26 municípios da área de abrangência do Departamento Regional de Saúde de Ribeirão Preto, no período de 2011 a 2016. Foram analisados dados secundários obtidos via Departamento de Informática do Sistema Único de Saúde. Foram analisadas variáveis sociodemográficas, relativas ao óbito, ao pré-natal e parto e à rede de atenção à saúde. Os dados foram analisados de modo descritivo com a análise univariada. Resultados Foram encontrados registros de 36 óbitos maternos no período de 2011 a 2016, a maioria dos óbitos ocorreu em mulheres na faixa etária de 20 a 29 anos (63,9%), com média de idade de 28,1 anos, sendo a maioria solteira (50%), cor branca (66,7%), primípara (41,7%), com renda (30%). O acesso ao pré-natal foi perceptível na captação precoce (72,2%) e no número de consultas durante o pré-natal. A principal via de parto foi a cesárea (52,8%). As mortes maternas obstétricas diretas resultaram em 77,8% dos óbitos, sendo as principais causas: hipertensão, infecção e hemorragia. Conclusão O presente estudo mostrou que a maioria dos óbitos maternos ocorreu em mulheres na faixa etária de 20 a 29 anos, solteiras, de cor branca e primigestas. Foram perceptíveis a captação precoce e o adequado número de consultas durante o pré-natal. A classificação da maioria das mortes foi obstétrica direta, sendo hipertensão, infecção e hemorragia as principais causas. Foi possível conhecer a estrutura de redes e verificar uma boa cobertura de atenção primária e de atenção hospitalar para assistência ao parto.


Resumen Objetivo Describir las defunciones maternas declaradas, identificar el perfil epidemiológico de las mujeres que fallecieron durante el embarazo o el puerperio y analizar las variables relacionadas con la atención prenatal y el parto. Métodos Se trata de un estudio con diseño retrospectivo y enfoque cuantitativo tipo recopilación. La población estudiada estuvo compuesta por mujeres que fallecieron durante el embarazo o el puerperio, residentes en algunos de los 26 municipios del área de cobertura del Departamento Regional de Salud de Ribeirão Preto, en el período de 2011 a 2016. Se analizaron datos secundarios obtenidos mediante el Departamento de Informática del Sistema Único de Salud. Se analizaron variables sociodemográficas, relativas a la defunción, a la atención prenatal y parto y a la red de atención en salud. Los datos se analizaron de modo descriptivo con el análisis univariado. Resultados Se encontraron registros de 36 defunciones maternas en el período de 2011 a 2016, la mayoría de las defunciones ocurrió en mujeres dentro del grupo de edad de 20 a 29 años (63,9 %), con promedio de edad de 28,1 años, la mayoría soltera (50 %), blanca (66,7 %), primípara (41,7 %), con ingresos (30 %). El acceso a la atención prenatal fue detectado mediante la captación temprana (72,2 %) y el número de consultas prenatales. La principal vía de parto fue la cesárea (52,8 %). Las muertes maternas obstétricas directas representaron el 77,8 % de las defunciones, y las principales causas fueron: hipertensión, infección y hemorragia. Conclusión El presente estudio mostró que la mayoría de las defunciones maternas ocurrió en mujeres dentro del grupo de edad de 20 a 29 años, solteras, blancas y primíparas. Se detectó la captación temprana y un número adecuado de consultas prenatales. La clasificación de la mayoría de las muertes fue obstétricas directa, y las principales causas fueron hipertensión, infección y hemorragia. Fue posible conocer la estructura de redes y verificar una buena cobertura de atención primaria y de atención hospitalaria para asistencia al parto.


Abstract Objectives To describe reported maternal deaths, identify the epidemiological profile of women who died during their pregnancy-postpartum cycle, and analyze the variables related to prenatal and childbirth care. Methods Retrospective quantitative survey. The studied population was women who died during their pregnancy-postpartum cycle and lived in one of the 26 municipalities in the area covered by the Ribeirão Preto Regional Health Department from 2011 to 2016. Secondary data obtained via the Department of Informatics of the Brazilian Unified Health System, including sociodemographic information and variables related to death, prenatal and childbirth, and the healthcare network, were treated by using descriptive statistics and univariate analysis. Results Records of 36 maternal deaths were found for the period between 2011 and 2016. Most deaths occurred in women from 20 to 29 years old (63.9%). The average age of the examined women was 28.1 years, and most were single (50%), white (66.7%), primiparous (41.7%), and had an income source (30%). Access to prenatal care was perceptible because of the existence of early recruitment (72.2%) and the number of prenatal appointments. The main mode of delivery was cesarean (52.8%). Direct obstetric causes of maternal death resulted in 77.8% of the occurrences, and the main causes were hypertension, infection, and bleeding. Conclusion The present study showed that most maternal deaths occurred in single, white, and primiparous women from 20 to 29 years old. Early recruitment and adequate number of prenatal appointments stood out. The classification of most deaths was direct obstetric, and hypertension, infection, and bleeding were the main causes. The present study exposed the network structure present in the healthcare sphere at issue and showed satisfactory primary healthcare and hospital coverage in childbirth care.


Animals , Female , Adult , Maternal Mortality , Delivery of Health Care , Maternal Death/statistics & numerical data , Epidemiology, Descriptive , Retrospective Studies , Comprehensive Health Care , Evaluation Studies as Topic
15.
Ciênc. cuid. saúde ; 21: e57258, 2022. tab
Article Pt | LILACS, BDENF | ID: biblio-1384532

ABSTRACT Objetivo: Descrever as principais condições potencialmente ameaçadoras à vida de mulheres durante o ciclo gravídico e puerperal e variáveis relacionadas a esses agravos. Método: Estudo do tipo documental, descritivo e quantitativo, realizado com prontuários de gestantes, parturientes e puérperas internadas em hospital de média complexidade, que apresentaram Condições Potencialmente Ameaçadoras à Vida (CPAV). Foram excluídos os de acesso impossibilitado por estarem sob judice. A amostra foi temporal e a análise univariada. Resultados: Inclui-se 181 prontuários. A maioria das condições ocorreu em mulheres de 16 a 34 anos de idade (61,3%), união estável (60,8%), pardas (31,5%), sem renda ocupacional (29,2%), multíparas (28,87%), com complicações no primeiro trimestre gestacional (32,6%). Verificaram-se a realização de um número insuficiente de consultas (13,8%), dados referentes ao pré-natal ignorados (68%). As principais CPAV foram as síndromes hemorrágicas (28,2%), hipertensivas (25,4%) e infecção (13,3%). Como desfecho, foram observados prevalência de aborto não especificado (22,1%), morte perinatal por doença infecciosa e parasitária da mãe (2,2%). Conclusão: As principais CPAV foram as síndromes hemorrágicas, hipertensivas e infecções. Como desfecho, foram observados alta hospitalar, aborto, referenciamento à UTI, morte perinatal e morte materna.


RESUMEN Objetivo: describir las principales condiciones potencialmente amenazantes para la vida de las mujeres durante el ciclo gravídico y puerperal, además de las variables relacionadas con estos agravios. Método: estudio del tipo documental, descriptivo y cuantitativo, realizado con registros médicos de gestantes, parturientes y puérperas internadas en hospital de mediana complejidad, que presentaron Condiciones Potencialmente Amenazantes a la Vida (CPAV). Se excluyeron los de acceso imposibilitado por estar bajo juicio. La muestra fue temporal y el análisis univariado. Resultados: se incluyen 181 registros médicos. La mayoría de las condiciones ocurrió en mujeres de 16 a 34 años de edad (61,3%), unión estable (60,8%), pardas (31,5%), sin ingreso ocupacional (29,2%), multíparas (28,87%), con complicaciones en el primer trimestre gestacional (32,6%). Se constató un número insuficiente de consultas (13,8 %), datos relativos al prenatal ignorados (68 %). Las principales CPAV fueron los trastornos hemorrágicos (28,2%), hipertensivos (25,4%) e infecciosos (13,3%). Como resultado, se observaron: prevalencia de aborto no especificado (22,1%), muerte perinatal por enfermedad infecciosa y parasitaria de la madre (2,2%). Conclusión: las principales CPAV fueron los trastornos hemorrágicos, hipertensivos e infecciones. Como resultado, se observó alta hospitalaria, aborto, referencia a la UCI, muerte perinatal y muerte materna.


ABSTRACT Objective: To describe the main conditions potentially threatening the lives of women during the pregnancy and puerperal cycle and variables related to these diseases. Method: Documentary, descriptive and quantitative study, conducted with medical records of pregnant women, women giving birth and puerperal women hospitalized in a hospital of medium complexity, who presented Potentially Life Threatening Conditions (PLTC). Those with access unable to be sob judice were excluded. The sample was temporal and the analysis was univariate. Results: This includes 181 medical records. Most conditions occurred in women aged 16 to 34 years (61.3%), stable union (60.8%), brown (31.5%), without occupational income (29.2%), multiparous (28.87%), with complications in the first gestational trimester (32.6%). There was an insufficient number of consultations (13.8%), data regarding prenatal care ignored (68%). The main CPAV were hemorrhagic syndromes (28.2%), hypertensive (25.4%) and infection (13.3%). As an outcome, we observed a prevalence of unspecified miscarriage (22.1%), perinatal death from infectious and parasitic disease of the mother (2.2%). Conclusion: The main CPAV were hemorrhagic, hypertensive and infections syndromes. As an outcome, hospital discharge, miscarriage, ICU referral, perinatal death and maternal death were observed.


Humans , Female , Pregnancy , Adolescent , Adult , Pregnancy Complications/mortality , Prenatal Care/statistics & numerical data , Maternal Health/statistics & numerical data , Pregnancy Complications, Infectious/mortality , World Health Organization , Medical Records/statistics & numerical data , Pregnant Women , Hypertension, Pregnancy-Induced/mortality , Abortion , Maternal Death/statistics & numerical data , Perinatal Death , Postpartum Hemorrhage/mortality
16.
Pan Afr Med J ; 39: 134, 2021.
Article En | MEDLINE | ID: mdl-34527150

INTRODUCTION: the novel coronavirus disease (COVID-19) pandemic has challenged health systems around the world. This study was designed to describe the socio-demographic characteristics of pregnant women with COVID-19 infection, the common clinical features at presentation and the pregnancy outcome at the University of Benin Teaching Hospital, Edo State, Nigeria. METHODS: a cross-sectional analytical study of all confirmed cases of COVID-19 infection from April to September 2020. RESULTS: out of 69 suspected cases that were tested, 19 (28.4%) were confirmed with COVID-19 infection. The common presenting complaints were fever (68.4 %), cough (57.9 %), sore throat (31.6%), malaise (42.1%), loss of taste (26.3%), anosmia (21.1%), and difficulty with breathing (10.6%). In terms of treatment outcome, 57.9% delivered while 36.8% recovered with pregnancy on-going, and 1 (5.3%) maternal death. Of the 11 women who delivered, 45.4% had vaginal deliveries and 54.6 % had Caesarean section. The mean birth weight was 3.1kg and most of the neonates (81.8%) had normal Apgar scores at birth. There was 1 perinatal death from prematurity, birth asphyxia, and intrauterine growth restriction. The commonest diagnosed co-morbidity of pregnancy was preeclampsia and it was significantly associated with severe COVID-19 disease requiring oxygen supplementation (P = 0.028). CONCLUSION: the clinical symptoms of COVID-19 in pregnancy are similar to those described in the non-pregnant population. It did not seem to worsen the maternal or foetal pregnancy outcome. The occurrence of preeclampsia is significantly associated with severe COVID-19 infection requiring respiratory support.


COVID-19/complications , Delivery, Obstetric/statistics & numerical data , Pregnancy Complications, Infectious/virology , Pregnancy Outcome , Adult , COVID-19/physiopathology , COVID-19/therapy , Cesarean Section/statistics & numerical data , Cross-Sectional Studies , Female , Hospitals, Teaching , Humans , Infant, Newborn , Maternal Death/statistics & numerical data , Nigeria , Oxygen/administration & dosage , Pre-Eclampsia/epidemiology , Pregnancy , Premature Birth/epidemiology , Retrospective Studies , Severity of Illness Index , Young Adult
17.
Am J Public Health ; 111(9): 1696-1704, 2021 09.
Article En | MEDLINE | ID: mdl-34410825

Objectives. To examine associations between state-level variation in abortion-restricting policies in 2015 and total maternal mortality (TMM), maternal mortality (MM), and late maternal mortality (LMM) from 2015 to 2018 in the United States. Methods. We derived an abortion policy composite index for each state based on 8 state-level abortion-restricting policies. We fit ecological state-level generalized linear Poisson regression models with robust standard errors to estimate 4-year TMM, MM, and LMM rate ratios and 95% confidence intervals (CIs) associated with a 1-unit increase in the abortion index, adjusting for state-level covariates. Results. States with the higher score of abortion policy composite index had a 7% increase in TMM (adjusted rate ratio [ARR] = 1.07; 95% CI = 1.02, 1.12) compared with states with lower abortion policy composite index, after we adjusted for state-level covariates. Among individual abortion policies, states with a licensed physician requirement had a 51% higher TMM (ARR = 1.51; 95% CI = 1.15, 1.99) and a 35% higher MM (ARR = 1.35; 95% CI = 1.09, 1.67), and states with restrictions on Medicaid coverage of abortion care had a 29% higher TMM (ARR = 1.29; 95% CI = 1.03, 1.61). Conclusions. Restricting access to abortion care at the state level may increase the risk for TMM.


Abortion, Induced/mortality , Abortion, Legal/mortality , Contraception Behavior/statistics & numerical data , Maternal Death/statistics & numerical data , Abortion, Legal/statistics & numerical data , Female , Health Services Accessibility , Humans , Maternal Mortality/trends , State Government , United States
18.
Afr J Reprod Health ; 25(1): 56-66, 2021 Feb.
Article En | MEDLINE | ID: mdl-34077111

Maternal death is a major global health issue with the highest impact in low-income countries. Despite some modest decline in the maternal mortality rates in Ghana since the 1990's, this has been below expectation. The aim of this study was to describe the trends and contributory factors to maternal mortality at the Korle Bu Teaching Hospital (KBTH), Accra, Ghana. We performed a retrospective chart review of all maternal deaths at KBTH from 2015 to 2019. Data were analyzed using SPSS version 23. A p-value of <0.05 was considered statistically significant. Over the period, there were 45,676 live births, 276 maternal deaths and a maternal mortality ratio of 604/100,000 live births (95% CI: 590/100,000 - 739/100,000). The leading causes of maternal death were hypertensive disorders (37.3%), hemorrhage (20.6%), Sickle cell disease (8.3%), sepsis (8.3%), and pulmonary embolism (8.0%). Significant factors associated with maternal mortalities at the KBTH were: women with no formal education [AOR 3.23 (CI: 1.73- 7.61)], women who had less than four antenatal visits [AOR 1.93(CI: 1.23-3.03)], and emergency cesarean section [AOR 3.87(CI: 2.51-5.98)]. Hypertensive disorders remain the commonest cause of the high maternal mortality at KBTH. Formal education and improvement in antenatal visits may help prevent these deaths.


Hospitals, Teaching/statistics & numerical data , Maternal Death/statistics & numerical data , Maternal Mortality , Pregnancy Complications/mortality , Adolescent , Adult , Cause of Death , Female , Ghana/epidemiology , Humans , Hypertension, Pregnancy-Induced/mortality , Maternal Death/ethnology , Parity , Pregnancy , Retrospective Studies , Young Adult
19.
PLoS One ; 16(6): e0252106, 2021.
Article En | MEDLINE | ID: mdl-34081727

BACKGROUND: Sub-Saharan Africa (SSA) carries the highest burden of maternal mortality, yet, the accurate maternal mortality ratios (MMR) are uncertain in most SSA countries. Measuring maternal mortality is challenging in this region, where civil registration and vital statistics (CRVS) systems are weak or non-existent. We describe a protocol designed to explore the use of CRVS to monitor maternal mortality in Zimbabwe-an SSA country. METHODS: In this study, we will collect deliveries and maternal death data from CRVS (government death registration records) and health facilities for 2007-2008 and 2018-2019 to compare MMRs and causes of death. We will code the causes of death using classifications in the maternal mortality version of the 10th revision to the international classification of diseases. We will compare the proportions of maternal deaths attributed to different causes between the two study periods. We will also analyse missingness and misclassification of maternal deaths in CRVS to assess the validity of their use to measure maternal mortality in Zimbabwe. DISCUSSION: This study will determine changes in MMR and causes of maternal mortality in Zimbabwe over a decade. It will show whether HIV, which was at its peak in 2007-2008, remains a significant cause of maternal deaths in Zimbabwe. The study will recommend measures to improve the quality of CRVS data for future use to monitor maternal mortality in Zimbabwe and other SSA countries of similar characteristics.


Cause of Death , Maternal Death/statistics & numerical data , Maternal Mortality/trends , Observational Studies as Topic/methods , Acquired Immunodeficiency Syndrome/epidemiology , Acquired Immunodeficiency Syndrome/mortality , Adolescent , Adult , Child , Female , Humans , Middle Aged , Pregnancy , Vital Statistics , Young Adult , Zimbabwe/epidemiology
20.
CMAJ Open ; 9(2): E539-E547, 2021.
Article En | MEDLINE | ID: mdl-34021011

BACKGROUND: Accurate identification of maternal deaths is paramount for audit and policy purposes. Our aim was to determine the accuracy and completeness of data on maternal deaths in hospital and those recorded on a death certificate, and the level of agreement between the 2 data sources. METHODS: We conducted a retrospective population-based study using data for Ontario, Canada, from Apr. 1, 2002, to Dec. 31, 2015. We used Canadian Institute for Health Information (CIHI) databases to identify deaths during inpatient, emergency department and same-day surgery encounters. We captured Vital Statistics deaths in the Office of the Registrar General, Deaths (ORGD) data set. Deaths were considered within 42 days and within 365 days after a pregnancy outcome (live birth, miscarriage, ectopic pregnancy or induced abortion) for all multiple and singleton pregnancies. We calculated agreement statistics and 95% confidence intervals (CIs). RESULTS: Among 1 679 455 live births and stillbirths, 398 pregnancy-related deaths in the ORGD data set were mapped to a birth in CIHI databases, and 77 (16.2%) were not. Among 2 039 849 recognized pregnancies, 534 pregnancy-related deaths in the ORGD data set were linked to CIHI records, and 68 (11.3%) were not. Among live births and stillbirths, after pregnancy-related deaths in the ORGD data set not matched to a maternal death in the CIHI databases were removed, concordance measures between CIHI and ORGD records for maternal death within 42 days after delivery included a κ value of 0.87 (95% CI 0.82-0.91) and positive percent agreement of 0.88 (95% CI 0.83-0.94). The corresponding measures were similar for maternal death within 42 days after the end of a recognized pregnancy. When unlinked pregnancy-related deaths in the ORGD data set were retained, agreement measures declined for death within 42 days after a live birth or stillbirth (κ = 0.68, 95% CI 0.62-0.74). For maternal death within 365 days after a live birth or stillbirth, or after the end of a recognized pregnancy, the concordance statistics were generally favourable when unlinked pregnancy-related deaths in the ORGD data set were removed but were substantially declined when they were retained. INTERPRETATION: Maternal mortality cannot be ascertained solely with the use of hospital data, including beyond 42 days after the end of pregnancy. To improve linkage, we propose including health insurance numbers on provincial and territorial medical death certificates.


Birth Certificates , Death Certificates , Maternal Death , Maternal Mortality/trends , Pregnancy Complications/mortality , Pregnancy Outcome/epidemiology , Cause of Death , Female , Hospital Information Systems/statistics & numerical data , Hospitalization/statistics & numerical data , Humans , Maternal Death/etiology , Maternal Death/prevention & control , Maternal Death/statistics & numerical data , Medical Record Linkage/methods , Ontario/epidemiology , Outcome Assessment, Health Care/methods , Outcome Assessment, Health Care/standards , Pregnancy , Quality Improvement , Retrospective Studies , Stillbirth/epidemiology
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