Digital health and the promise of equity in maternity care: A mixed methods multi-country assessment on the use of information and communication technologies in healthcare facilities in Latin America and the Caribbean.

INTRODUCTION: Timely access to maternity care is critical to saving lives. Digital health may serve to bridge the care chasm and advance health equity. Conducted in the aftermath of the COVID-19 pandemic, this cross-sectional mixed-methods study assessed the use of information and communication technologies (ICTs) in healthcare facilities in nine Latin American and Caribbean countries to understand the landscape of ICT use in maternity care and the barriers and facilitators to its adoption. MATERIALS AND METHODS: Between April 2021 and September 2022, we disseminated an online survey in English and Spanish among, mainly public, healthcare institutions that provided maternity care in Argentina, Bolivia, Colombia, the Dominican Republic, Ecuador, Guyana, Honduras, Paraguay and Peru. We also interviewed 27 administrators and providers in ministries of health and healthcare institutions. RESULTS: Most of the 1877 institutions that answered the survey reported using ICTs in maternity care (N = 1536, 82%), ranging from 96% in Peru to 64% in the Dominican Republic. Of institutions that used ICTs, 59% reported using them more than before or for the first time since the pandemic began. ICTs were most commonly used to provide family planning (64%) and breastfeeding (58%) counseling, mainly by phone (82%). At the facility level, availability of equipment and internet coverage, coupled with skilled human resources, were the main factors associated with ICT use. At country level, government-led initiatives to develop digital health platforms, alongside national investments in the digital infrastructure, were the determining factors in the adoption of ICTs in healthcare provision. CONCLUSION: Digital health for maternity care provision relied on commonly available technology and did not necessitate highly sophisticated systems, making it a sustainable and replicable strategy. However, disparities in access to digital health remain and many facilities in rural and remote areas lacked connectivity. Use of ICTs in maternity care depended on countries' long-term commitments to achieving universal health and digital coverage.

Description of maternal and neonatal adverse events in pregnant people immunised with COVID-19 vaccines during pregnancy in the CLAP NETWORK of sentinel sites. Nested case-control analysis of the immunization-associated risk: A study protocol.

INTRODUCTION: COVID-19 is associated with higher morbimortality in pregnant people compared with non-pregnant people. At present, the benefits of maternal immunisation are considered to outweigh the risks, and therefore, vaccination is recommended during pregnancy. However, additional information is needed on the safety of the vaccines in this population. METHODS AND ANALYSIS: This a retrospective cohort nested case-control study in pregnant people who attended maternity hospitals from eight Latin American and Caribbean countries. A perinatal electronic clinical history database with neonatal and obstetric information will be used. The proportion of pregnant people immunised with COVID-19 vaccines of the following maternal and neonatal events will be described: preterm infant, small for gestational age, low birth weight, stillbirth, neonatal death, congenital malformations, maternal near miss and maternal death. Moreover, the risk of prematurity, small for gestational age and low birth weight associated with exposure to COVID-19 vaccines will be estimated. Each case will be matched with two groups of three randomly selected controls. Controls will be matched by hospital and mother's age (±3 years) with an additional matching by delivery date and conception time in the first and second control groups, respectively. The estimated required sample size for the main analysis (exposure to any vaccine) concerning 'non-use' is at least 1009 cases (3027 controls) to detect an increased probability of vaccine-associated event risk of 30% and at least 650 cases (1950 controls) to detect 30% protection. Sensitivity and secondary analyses considering country, type of vaccine, exposure windows and completeness of immunisation will be reported. ETHICS: The study protocol was reviewed by the Ethical Review Committee on Research of the Pan American Health Organization. Patient informed consent was waived due to the retrospective design and the utilisation of anonymised data (Ref. No: PAHOERC.0546.01). Results will be disseminated in open access journals.

The burden of stillbirths in low resource settings in Latin America: Evidence from a network using an electronic surveillance system.

OBJECTIVE: To determine stillbirth ratio and its association with maternal, perinatal, and delivery characteristics, as well as geographic differences in Latin American countries (LAC). METHODS: We analysed data from the Perinatal Information System of the Latin American Center for Perinatology and Human Development (CLAP) between January 2018 and June 2021 in 8 health facilities from five LAC countries (Bolivia, Guatemala, Honduras, Nicaragua, and the Dominican Republic). Maternal, pregnancy, and delivery characteristics, in addition to pregnancy outcomes were reported. Estimates of association were tested using chi-square tests, and P < 0.05 was regarded as significant. Bivariate analysis was conducted to estimate stillbirth risk. Prevalence ratios (PR) with their 95% confidence intervals (CI) for each predictor were reported. RESULTS: In total, 101,852 childbirths comprised the SIP database. For this analysis, we included 99,712 childbirths. There were 762 stillbirths during the study period; the Stillbirth ratio of 7.7/1,000 live births (ranged from 3.8 to 18.2/1,000 live births across the different maternities); 586 (76.9%) were antepartum stillbirths, 150 (19.7%) were intrapartum stillbirths and 26 (3.4%) with an ignored time of death. Stillbirth was significantly associated with women with diabetes (PRadj 2.36; 95%CI [1.25-4.46]), preeclampsia (PRadj 2.01; 95%CI [1.26-3.19]), maternal age (PRadj 1.04; 95%CI [1.02-1.05]), any medical condition (PRadj 1.48; 95%CI [1.24-1.76, and severe maternal outcome (PRadj 3.27; 95%CI [3.27-11.66]). CONCLUSIONS: Pregnancy complications and maternal morbidity were significantly associated with stillbirths. The stillbirth ratios varied across the maternity hospitals, which highlights the importance for individual surveillance. Specialized antenatal and intrapartum care remains a priority, particularly for women who are at a higher risk of stillbirth.

Neonatal outcomes according to different degrees of maternal morbidity: cross-sectional evidence from the Perinatal Information System (SIP) of the CLAP network.

BACKGROUND: The burden of maternal morbidity in neonatal outcomes can vary with the adequacy of healthcare provision and tool implementation to improve monitoring. Such information is lacking in Latin American countries, where the decrease in severe maternal morbidity and maternal death remains challenging. OBJECTIVES: To determine neonatal outcomes according to maternal characteristics, including different degrees of maternal morbidity in Latin American health facilities. METHODS: This is a secondary cross-sectional analysis of the Perinatal Information System (SIP) database from eight health facilities in five Latin American and Caribbean countries. Participants were all women delivering from August 2018 to June 2021, excluding cases of abortion, multiple pregnancies and missing information on perinatal outcomes. As primary and secondary outcome measures, neonatal near miss and neonatal death were measured according to maternal/pregnancy characteristics and degrees of maternal morbidity. Estimated adjusted prevalence ratios (PRadj) with their respective 95% CIs were reported. RESULTS: In total 85,863 live births were included, with 1,250 neonatal near miss (NNM) cases and 695 identified neonatal deaths. NNM and neonatal mortality ratios were 14.6 and 8.1 per 1,000 live births, respectively. Conditions independently associated with a NNM or neonatal death were the need for neonatal resuscitation (PRadj 16.73, 95% CI [13.29-21.05]), being single (PRadj 1.45, 95% CI [1.32-1.59]), maternal near miss or death (PRadj 1.64, 95% CI [1.14-2.37]), preeclampsia (PRadj 3.02, 95% CI [1.70-5.35]), eclampsia/HELPP (PRadj 1.50, 95% CI [1.16-1.94]), maternal age (years) (PRadj 1.01, 95% CI [<1.01-1.02]), major congenital anomalies (PRadj 3.21, 95% CI [1.43-7.23]), diabetes (PRadj 1.49, 95% CI [1.11-1.98]) and cardiac disease (PRadj 1.65, 95% CI [1.14-2.37]). CONCLUSION: Maternal morbidity leads to worse neonatal outcomes, especially in women suffering maternal near miss or death. Based on SIP/PAHO database all these indicators may be helpful for routine situation monitoring in Latin America with the purpose of policy changes and improvement of maternal and neonatal health.

Surveillance of severe maternal morbidity and maternal mortality in maternity hospitals of the Latin American and Caribbean network - Red CLAP: study protocol.

The sustained reduction in maternal mortality in America underlines the need to analyse women who survived a complication that could have been fatal if appropriate and timely care had not been taken. Analysis of maternal near-miss (MNM) cases, as well as potentially life-threatening conditions (PLTC), are considered indicators for monitoring the quality of maternal care. The specific objective of this study protocol is to develop a surveillance system for PLTC, MNM and maternal mortality, as primary outcomes, in Latin American and Caribbean maternal healthcare institutions. Secondarily, the study was designed to identify factors associated with these conditions and estimate how often key evidence-based interventions were used for managing severe maternal morbidity. This is a multicenter cross-sectional study with prospective data collection. The target population consists of all women admitted to health centres participating in the network during pregnancy, childbirth, or the postpartum period. Variables describing the sequence of events that may result in a PLTC, MNM or maternal death are recorded. Relevant quality control is carried out to ensure the quality of the database and confidentiality. Centres with approximately 2,500 annual deliveries will be included to achieve a sufficient number of cases for calculation of indicators. The frequency of outcome measures for PLTC, MNM and maternal mortality and their confidence intervals and differences between groups will be calculated using the most appropriate statistical tests. Similar procedures will be performed with variables describing the use of evidence-based practices. Networking creates additional possibilities for global information management and interaction between different research groups. Lessons can be learned and shared, generating scientific knowledge to address relevant health problems throughout the region with provision of efficient data management.

The impact of maternal morbidity on cesarean section rates: exploring a Latin American network of sentinel facilities using the Robson's Ten Group Classification System.

BACKGROUND: Latin America has the highest Cesarean Section Rates (CSR) in the world. Robson's Ten Group Classification System (RTGCS) was developed to enable understanding the CSR in different groups of women, classified according to obstetric characteristics into one of ten groups. The size of each CS group may provide helpful data on quality of care in a determined region or setting. Data can potentially be used to compare the impact of conditions such as maternal morbidity on CSR. The objective of this study is to understand the impact of Severe Maternal Morbidity (SMM) on CSR in ten different groups of RTGCS. METHODS: Secondary analysis of childbirth information from 2018 to 2021, including 8 health facilities from 5 Latin American and Caribbean countries (Bolivia, Guatemala, Honduras, Nicaragua, and the Dominican Republic), using a surveillance database (SIP-Perinatal Information System, in Spanish) implemented in different settings across Latin America. Women were classified into one of RTGCS. The frequency of each group and its respective CSR were described. Furthermore, the sample was divided into two groups, according to maternal outcomes: women without SMM and those who experienced SMM, considering Potentially Life-threatening Conditions, Maternal Near Miss and Maternal Death as the continuum of morbidity. RESULTS: Available data were obtained from 92,688 deliveries using the Robson Classification. Overall CSR was around 38%. Group 5 was responsible for almost one-third of cesarean sections. SMM occurred in 6.7% of cases. Among these cases, the overall CSR was almost 70% in this group. Group 10 had a major role (preterm deliveries). Group 5 (previous Cesarean section) had a very high CSR within the group, regardless of the occurrence of maternal morbidity (over 80%). CONCLUSION: Cesarean section rate was higher in women experiencing SMM than in those without SMM in Latin America. SMM was associated with higher Cesarean section rates, especially in groups 1 and 3. Nevertheless, group 5 was the major contributor to the overall CSR.

From global recommendations to (in)action: A scoping review of the coverage of companion of choice for women during labour and birth.

Women greatly value and benefit from the presence of someone they trust to support them throughout labour and childbirth ('labour companion of choice'). Labour companionship improves maternal and perinatal outcomes, including enhancing physiological labour and birth experiences. Despite clear benefits, implementation is slow. We conducted a scoping review to assess coverage and models of labour companionship, including quantitative studies reporting coverage of labour companionship in any level health facility globally. We searched MEDLINE, CINAHL, and Global Health from 1 January 2010-14 December 2021. We extracted data on study design, labour companionship coverage, timing and type of companions allowed, and recoded data into categories for comparison across studies. We included data from a maternal health sentinel network of hospitals in Latin America, using descriptive statistics to assess coverage among 120,581 women giving birth in these sites from April 2018-April 2022. In the scoping review, we included 77 studies from 27 countries. There was wide variation in the coverage of labour companionship: almost one-third of studies reported coverage less than 40%, and one-third of studies reported coverage between 40-80%. Husbands or partners were the most frequent companion (37.7%, 29/77), followed by family member or friend (gender not specified) (32.5%, 25/77), family member or friend (female-only) (13.0%, 10/77). Across nine sentinel hospitals in five Latin American countries, there was variation in coverage, with no companion at any time ranging from 14.9%-93.8%. Despite the well-known benefits and factors affecting implementation of labour companionship, more work is needed to improve equitable coverage. Concerted efforts are needed to engage with communities, health workers, health managers, and policy-makers to establish policies, address implementation barriers, and integrate data on coverage into perinatal records and quality processes to ensure that all women have access. Harmonized reporting of labour companionship would greatly enhance understanding at global level.

Predicting severe maternal outcomes in a network of sentinel sites in Latin-American countries.

OBJECTIVE: This study aimed to determine incidences of potentially life-threatening conditions (PLTC), maternal near misses (MNM), and maternal deaths (MD) in women who gave birth in participating facilities, and to determine the probability that a pregnancy involving a PLTC would evolve into an MNM and/or an MD. METHODS: This was a multicentric observational study implemented on a maternal network from August 2018 to May 2019 in five Latin-American countries. We summarized categorical variables as frequencies and continuous variables with median, interquartile range, and standard deviations. Positive and negative likelihood ratios were calculated and multivariate predictive models were built. RESULTS: There were 33 901 deliveries and miscarriages, of which 8.0% had at least one PLTC and 0.6% had an MNM. Hypertensive disorder was the most frequent condition to evolve into a severe maternal outcome. CONCLUSION: Identifying PLTC can help to prevent MNM and MD. The inclusion of these predictors in a real-time data registration system like the Perinatal Informatic System could work as a surveillance tool for early detection, leading to a reduction in the rate of worsening conditions.

The impact of maternal morbidity on cesarean section rates: exploring a Latin American network of sentinel facilities using the Robson's Ten Group Classification System

Background: Latin America has the highest Cesarean Section Rates (CSR) in the world. Robson's Ten Group Classification System (RTGCS) was developed to enable understanding the CSR in different groups of women, classified according to obstetric characteristics into one of ten groups. The size of each CS group may provide helpful data on quality of care in a determined region or setting. Data can potentially be used to compare the impact of conditions such as maternal morbidity on CSR. The objective of this study is to understand the impact of Severe Maternal Morbidity (SMM) on CSR in ten different groups of RTGCS. Methods: Secondary analysis of childbirth information from 2018 to 2021, including 8 health facilities from 5 Latin American and Caribbean countries (Bolivia, Guatemala, Honduras, Nicaragua, and the Dominican Republic), using a surveillance database (SIP-Perinatal Information System, in Spanish) implemented in different settings across Latin America. Women were classified into one of RTGCS. The frequency of each group and its respective CSR were described. Furthermore, the sample was divided into two groups, according to maternal outcomes: women without SMM and those who experienced SMM, considering Potentially Life-threatening Conditions, Maternal Near Miss and Maternal Death as the continuum of morbidity. Results: Available data were obtained from 92,688 deliveries using the Robson Classification. Overall CSR was around 38%. Group 5 was responsible for almost one-third of cesarean sections. SMM occurred in 6.7% of cases. Among these cases, the overall CSR was almost 70% in this group. Group 10 had a major role (preterm deliveries). Group 5 (previous Cesarean section) had a very high CSR within the group, regardless of the occurrence of maternal morbidity (over 80%). Conclusion: Cesarean section rate was higher in women experiencing SMM than in those without SMM in Latin America. SMM was associated with higher Cesarean section rates, especially in groups 1 and 3. Nevertheless, group 5 was the major contributor to the overall CSR. (AU)

Cesarean section in Uruguay from 2008 to 2018: country analysis based on the Robson classification. An observational study.

BACKGROUND: The use of caesarean section has steadily increased, with Latin America being the region with the highest rates. Multiple factors account for that increase and the Robson classification is appropriate to compare determinants at the clinical level for caesarean section rates over time. The purpose of this study is to describe the evolution of caesarean section rates by Robson groups in Uruguay from 2008 to 2018 using a country level database. METHODS: We included the records of all women giving birth in Uruguay (pregnancies ≥22 weeks and weights ≥500 g) with valid data in the mode of childbirth recorded in the Perinatal Information System database between 2008 and 2018. Caesarean section rates were calculated by Robson groups for each of the years included, disaggregated by care sector (public/private) and by geographical area (Capital City/Non-Capital), with time trends and their significance analyzed using linear regression models. RESULTS: Of the total 485,263 births included in this research, the overall caesarean section rate was 43,1%. In 2018, among the groups at lower risk of caesarean section (1 to 4), the highest rates were seen in women in group 2B (98,8%), followed by those in group 4B (97,9%). A significant increase in the number of caesarean sections was seen in groups 2B (97,9 to 98,8%), 3 (8,36 to 11,1%) and 4 (A (22,7 to 26,9%) and B (95,4 to 97,9%) Significant growth was also observed in groups 5 (74,3 to 78,1%), 8 (90,6 to 95,5%), and 10 (39,1 to 46,7%). The private sector had higher rates of caesarean section for all groups throughout the period, except for women in group 9. The private sector in Montevideo presented the highest rates in the groups with the lowest risk of caesarean section (1, 2A, 3 and 4A), followed by the private sector outside of the capital. CONCLUSION: Uruguay is no exception to the increasing caesarean section trend, even in groups of women who have lower risk of requiring caesarean section. The implementation of interventions aimed at reducing caesarean section in the groups with lower obstetric risk in Uruguay is warranted.

Maternal mortality linked to COVID-19 in Latin America: Results from a multi-country collaborative database of 447 deaths.

Background: This study aimed to describe the clinical characteristics of maternal deaths associated with COVID-19 registered in a collaborative Latin-American multi-country database. Methods: This was an observational study implemented from March 1st 2020 to November 29th 2021 in eight Latin American countries. Information was based on the Perinatal Information System from the Latin American Center for Perinatology, Women and Reproductive Health. We summarized categorical variables as frequencies and percentages and continuous variables into median with interquartile ranges. Findings: We identified a total of 447 deaths. The median maternal age was 31 years. 86·4% of women were infected antepartum, with most of the cases (60·3%) detected in the third trimester of pregnancy. The most frequent symptoms at first consultation and admission were dyspnea (73·0%), fever (69·0%), and cough (59·0%). Organ dysfunction was reported in 90·4% of women during admission. A total of 64·8% women were admitted to critical care for a median length of eight days. In most cases, the death occurred during the puerperium, with a median of seven days between delivery and death. Preterm delivery was the most common perinatal complication (76·9%) and 59·9% were low birth weight. Interpretation: This study describes the characteristics of maternal deaths in a comprehensive multi-country database in Latin America during the COVID-19 pandemic. Barriers faced by Latin American pregnant women to access intensive care services when required were also revealed. Decision-makers should strengthen severity awareness, and referral strategies to avoid potential delays. Funding: Latin American Center for Perinatology, Women and Reproductive Health.

Antecedentes: Este estudio tuvo el objetivo de describir las características clínicas de las muertes maternas asociadas a COVID-19 registradas en una base de datos latinoamericana multipaís. Métodos: Se implementó un estudio observacional descriptivo en el que participaron ochos países Latinoamericanos desde el 1ero de marzo 2020 al 29 de noviembre 2021. La información se obtuvo del Sistema Informático Perinatal del Centro Latino Americano de Perinatología, Salud de la Mujer y Reproductiva. Presentamos las variables categóricas como frecuencias y porcentajes y las variables continuas en medianas con rangos inter cuartiles. Resultados: Identificamos un total de 447 muertes. La mediana de edad materna fue de 31 años. 86·4% de las mujeres se infectaron ante del parto, siendo la mayoría de los casos detectados en el tercer trimestre del embarazo (60·3%). Los síntomas más frecuentes en la primera consulta y la admisión fueron disnea (73·0%), fiebre (69·0%), y tos (59·0%). Se reportaron disfunciones orgánicas en 90·4% de las mujeres durante la admisión. Un total de 64·8% de las mujeres fueron ingresadas a cuidados críticos por una mediana de ocho días de estadía. En la mayoría de los casos la muerte ocurrió durante el puerperio, con una media de siete días entre el parto y su ocurrencia. El parto prematuro fue la complicación perinatal más frecuente (76·9%) y 59·9% tuvo bajo peso al nacer. Interpretación: Este estudio describe las características de las muertes maternas durante la pandemia por COVID-19 a partir de una base colaborativa multipaís. Se observaron barreras para el acceso a cuidados intensivos. Los tomadores de decisión deberían trabajar en el fortalecimiento de la conciencia de gravedad, y en estrategias de referencia para evitar potenciales demoras. Financiamiento: Centro Latino Americano de Perinatología, Salud de la Mujer y Reproductiva.

Collaborative model of intrapartum care: qualitative study on barriers and facilitators to implementation in a private Brazilian hospital.

INTRODUCTION: A collaborative (midwife-obstetrician) model of intrapartum care (CMIC) is associated with lower caesarean section (CS) rates than physician-led models. In 2019, the largest private maternity hospital in Latin America (14.000 deliveries/year, 89% CS) created a quality improvement initiative to optimise intrapartum care and safely reduce CS in low-risk women managed by its internal team of healthcare providers (HCP). We conducted formative research to identify potential barriers and facilitators to the implementation of a CMIC. METHODS: Three groups of stakeholders participated in focus groups and interviews: hospital managers and clinical coordinators, HCP working in labour/delivery wards and pregnant women intending to give birth in the hospital. We explored participants' views about the acceptability of implementing a CMIC where a nurse-midwife (NM) on shift would be the main intrapartum HCP, with continuous support/supervision of a dedicated, in-house, obstetrician-gynaecologist (OB-GYN). A thematic analysis approach was used. RESULTS: 12 HCPs, 5 clinical coordinators, 2 hospital managers and 7 women participated. OB-GYNs, coordinators and managers highlighted health system, organisational and structural factors (NMs' limited experience/skills, professional roles, financial reimbursement) as potential barriers. NMs identified logistical and human resources as additional barriers. Women viewed the CMIC with perplexity and insecurity because of cultural beliefs about the dominant role of OB-GYNs, and limited information about NM's capabilities. All professionals agreed that women's acceptance of a CMIC will require educational interventions and communication strategies to inform potential users about the advantages and safety of this model. CONCLUSION: There are important barriers and facilitators to implement a CMIC in a private Brazilian maternity hospital. Factors related to health system structure and organisation may have the greatest impact. A CMIC is more likely to succeed if stakeholders' concerns about responsibilities, power and financial revenues are addressed, and educational interventions targeted at users are deployed prior to its implementation.

Do women prefer caesarean sections? A qualitative evidence synthesis of their views and experiences.

BACKGROUND: Caesarean sections (CS) continue to increase worldwide. Multiple and complex factors are contributing to the increase, including non-clinical factors related to individual women, families and their interactions with health providers. This global qualitative evidence synthesis explores women's preferences for mode of birth and factors underlying preferences for CS. METHODS: Systematic database searches (MEDLINE, EMBASE, CINAHL, PsycINFO) were conducted in December 2016 and updated in May 2019 and February 2021. Studies conducted across all resource settings were eligible for inclusion, except those from China and Taiwan which have been reported in a companion publication. Phenomena of interest were opinions, views and perspectives of women regarding preferences for mode of birth, attributes of CS, societal and cultural beliefs about modes of birth, and right to choose mode of birth. Thematic synthesis of data was conducted. Confidence in findings was assessed using GRADE-CERQual. RESULTS: We included 52 studies, from 28 countries, encompassing the views and perspectives of pregnant women, non-pregnant women, women with previous CS, postpartum women, and women's partners. Most of the studies were conducted in high-income countries and published between 2011 and 2021. Factors underlying women preferences for CS had to do mainly with strong fear of pain and injuries to the mother and child during labour or birth (High confidence), uncertainty regarding vaginal birth (High confidence), and positive views or perceived advantages of CS (High confidence). Women who preferred CS expressed resoluteness about it, but there were also many women who had a clear preference for vaginal birth and those who even developed strategies to keep their birth plans in environments that were not supportive of vaginal births (High confidence). The findings also identified that social, cultural and personal factors as well as attributes related to health systems impact on the reasons underlying women preferences for various modes of birth (High confidence). CONCLUSIONS: A wide variety of factors underlie women's preferences for CS in the absence of medical indications. Major factors contributing to perceptions of CS as preferable include fear of pain, uncertainty with vaginal birth and positive views on CS. Interventions need to address these factors to reduce unnecessary CS.

Prevalence of and reasons for women's, family members', and health professionals' preferences for cesarean section in Iran: a mixed-methods systematic review.

BACKGROUND: Cesarean section (CS) rates have been increasing globally. Iran has one of the highest CS rates in the world (47.9%). This review was conducted to assess the prevalence of and reasons for women's, family members', and health professionals' preferences for CS in Iran. METHODS AND FINDINGS: In this mixed-methods systematic review, we searched MEDLINE/PubMed, Embase, CINAHL, POPLINE, PsycINFO, Global Health Library, Google scholar; as well as Iranian scientific databases including SID, and Magiran from 1 January 1990 to 8th October 2019. Primary quantitative, qualitative, and mixed-methods studies that had been conducted in Iran with Persian or English languages were included. Meta-analysis of quantitative studies was conducted by extracting data from 65 cross-sectional, longitudinal, and baseline measurements of interventional studies. For meta-synthesis, we used 26 qualitative studies with designs such as ethnography, phenomenology, case studies, and grounded theory. The Review Manager Version 5.3 and the Comprehensive Meta-Analysis (CMA) software were used for meta-analysis and meta-regression analysis. Results showed that 5.46% of nulliparous women (95% CI 5.38-5.50%; χ2 = 1117.39; df = 28 [p < 0.00001]; I2 = 97%) preferred a CS mode of delivery. Results of subgroup analysis based on the time of pregnancy showed that proportions of preference for CS reported by women were 5.94% (95% CI 5.86-5.99%) in early and middle pregnancy, and 3.81% (95% CI 3.74-3.83%), in late pregnancy. The heterogeneity was high in this review. Most women were pregnant, regardless of their parity; the risk level of participants were unknown, and some Persian publications were appraised as low in quality. A combined inductive and deductive approach was used to synthesis the qualitative data, and CERQual was used to assess confidence in the findings. Meta-synthesis generated 10 emerging themes and three final themes: 'Women's factors', 'Health professional factors', andex 'Health organization, facility, or system factors'. CONCLUSION: Despite low preference for CS among women, CS rates are still so high. This implies the role of factors beyond the individual will. We identified a multiple individual, health facility, and health system factors which affected the preference for CS in Iran. Numerous attempts were made in recent years to design, test and implement interventions to decrease unnecessary CS in Iran, such as mother-friendly hospitals, standard protocols for labor and birth, preparation classes for women, midwives, and gynaecologists, and workshops for specialists and midwives through the "health sector evolution policy". Although these programs were effective, high rates of CS persist and more efforts are needed to optimize the use of CS.

Humo de tabaco en vehículos: medición de partículas de materia 2. 5 micras / Smoking in vehicles: measurement of 2. 5 PM matter particles

Introducción: proteger a la población del humo de segunda mano (HSM) es uno de los principios de la Organización Mundial de la Salud en el marco del control del tabaco. Existen pocos datos acerca de la exposición de HSM en vehículos en América del Sur. Este estudio tuvo como objetivo determinar el nivel de dicha exposición. Materiales y método: se midieron niveles de micropartículas de materia de 2,5 micras de diámetro (PM2,5) que vehiculizan el HSM en la vía aérea, en modelos experimentales en autos de fumadores y no fumadores. Resultados: la media de la concentración de PM2,5 fue de 181 µg/m3 en los autos de fumadores y de 0 µg/m3 en los autos de no fumadores (p <0,001). La máxima concentración fue de 2.900 µg/m3 en un auto de fumador estacionado con la ventanilla del conductor parcialmente abierta. Conclusiones: las concentraciones de PM2,5 en vehículos en los que se fuma alcanzó niveles altos, similares a los que se encuentran en ciertos países con políticas de control de tabaco débiles. Este hecho determina la necesidad de nuevas políticas públicas para eliminar el HSM de los vehículos para proteger la salud pública. (AU)

Introduction: Protection from second-hand smoke (SHS) is one of the main principles of the World Health Organization Framework Convention for Tobacco Control. Limited data is available on SHS exposure in vehicles in South America. This study aimed to assess the levels of exposure. Methods: Levels of respirable and fine suspended particles with 2.5 micrometres or less (PM2.5) diameter were measured in different models in smokers' and non-smoker´s vehicles. Results: Median PM2.5 concentration was 181 µg/m3 in "smoking vehicles" and 0 µg/m3 in "non-smoking vehicles" (p<0.001). The highest concentration reached 2.900 µg/m3 in a parked car with the driver's window partially open. Conclusions: Concentration of PM2.5 in vehicles reached high levels, similar to those at certain sites in countries with weak tobacco control policies. These facts underscore a need for new public policies to eliminate SHS in vehicles to protect public health.

Introdução: um dos princípios da Organização Mundial da Saúde no contexto do controle do tabaquismo é proteger a população da fumaça de segunda-mão (HSM). Existem poucos dados sobre a exposição de HSM em veículos na América do Sul. O objetivo deste estudo foi identificar um mecanismo para determinar o nível desta exposição. Materiais e métodos: utilizando modelos experimentais em veículos de fumantes e não fumantes foram medidos os níveis de micropartículas de matéria de 2,5 micras de diâmetro (PM2,5) transportados pela HSM na via aérea. Resultados: á concentração média de PM2,5 foi 181 µg/m3 nos automóveis de fumantes e 0 µg/m3 nos automóveis de não fumantes (p<0.001). A concentração máxima de 2.900 µg/m3 foi encontrada no automóvel estacionado de um fumante com a janela do motorista parcialmente aberta. Conclusões: as concentrações de PM2,5 em veículos de fumantes alcançou níveis altos, similares aos encontrados em alguns países com políticas de controle de tabaco débeis. Este fato determina a necessidade de novas políticas públicas para eliminar a HSM dos veículos para proteger a saúde pública.

Global burden of disease among teenagers in Uruguay and its comparison with Latin America and the Caribbean. / Carga de enfermedad de los adolescentes en Uruguay y su comparación con la de América Latina y el Caribe.

INTRODUCTION: Adolescence is considered a healthy stage of life and therefore little studied. This study described mortality over time in teenagers in Uruguay and analysed the burden of disease at this stage of life by the measure of Years of Life Lost by Premature Death in Uruguay and by comparison with rates in Latin America and the Caribbean by sex, cause and sub-region. METHODOLOGY: Secondary data sources used were the national registry of deaths in Uruguay, the first Global Burden of Disease study in Uruguay and the information on the data visualisation page of the Institute of Metrics and Health Evaluation. Data were extracted by the authors and displayed in tables and graphs. RESULTS: Teenager mortality held roughly stable between 1997 and 2015. More years were lost to premature death among Uruguayan men, the main causes being traffic accidents, self-inflicted injuries and violence. The same behaviour occurs throughout the region. CONCLUSIONS: The social determinants of health connected with poverty and inequality play a role in the development of depression, risky and violent behaviour, which possibly explain the loss of years due to premature death in adolescence.

Introducción. La adolescencia es considerada una etapa de buena salud y por tanto poco estudiada. El objetivo de este estudio es describir la evolución de la mortalidad en adolescentes en Uruguay y analizar la carga de enfermedad en esta etapa de la vida, a través de la medida de los Años de Vida Perdidos por Muerte Prematura en Uruguay y su comparación con los de América Latina y el Caribe según sexo, causa y subregión. Metodología. Se utilizaron fuentes de datos secundarias: el registro nacional de defunciones del Uruguay, el primer estudio de Carga Global de Enfermedad en Uruguay y la información presentada por la página de visualización de datos del Instituto de Métricas y Evaluación en Salud. Resultados. La mortalidad en los adolescentes se ha mantenidos aproximadamente estable entre 1997 y 2015. Loa años perdidos por muerte prematura para el Uruguay son más en los hombres y sus principales causas son los accidentes de tránsito, heridas auto infringidas y violencia. El mismo comportamiento se presenta en la región. Conclusiones. Los determinantes sociales de la salud vinculados a la pobreza e inequidad tienen un rol en el desarrollo de depresión, conductas riesgosas y violentas que posiblemente expliquen la perdida de años por muerte prematura en esta etapa de la vida.