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1.
BMC Womens Health ; 24(1): 414, 2024 Jul 23.
Artículo en Inglés | MEDLINE | ID: mdl-39039469

RESUMEN

BACKGROUND: Despite attempts to increase Universal Health Coverage, availability, accessibility, acceptability, and quality-related challenges remain barriers to receiving essential services by women who need them. We aimed to explore the experiences and perceptions of women receiving post-abortal care services in Zambia, within a human-rights framework. METHODS: A qualitative case study was conducted between August and September 2021 in Lusaka and Copperbelt provinces of Zambia. Fifteen (15) women seeking post-abortion care services were` interviewed using audio recorders; transcribed data was analyzed using thematic analysis. We report women's experiences and perceptions of the healthcare system, their experiences of abortion, and healthcare-seeking behaviour. We used the availability, accessibility, acceptability, and quality (AAAQ) framework to understand how women claimed their right to healthcare as they sought and utilized post-abortion care services. RESULTS: Women who experienced spontaneous abortions delayed seeking health care by viewing symptoms as 'normal pregnancy symptoms' and not dangerous. Women also delayed seeking care because they feared the negative attitudes from their communities and the health care providers towards abortion in general, despite it being legal in Zambia. Some services were considered costly, impeding their right to access quality care. CONCLUSIONS: Women delayed seeking care compounded by fear of negative attitudes from the community and healthcare providers. To ensure the provision and utilization of quality all abortion-related healthcare services, there is a need to increase awareness of the availability and legality of safe abortion services, the importance of seeking healthcare early for any abortion-related discomfort, and the provision and availability of free services at all levels of care should be emphasized.


Unsafe abortions continue to be an avoidable public health concern both globally and locally. In Zambia, a fifth of maternal deaths are related to unsafe abortions. Unsafe abortions have been defined as any induced termination of pregnancy outside the health facility, performed by untrained health personnel. Several strides have been made including the provision of comprehensive abortion care in all facilities, and the training of health personnel to provide these services at different levels of healthcare. Despite the increased availability of comprehensive abortion care through liberalized abortion laws and regulations and the training of health personnel to provide these services at different levels of healthcare, the need for quality post-abortion care specifically persists. As such, we carried out in-depth interviews to explore the experiences of women who present at healthcare facilities in Lusaka and the Copperbelt provinces in Zambia seeking post-abortion services. It was found that delay in seeking care at a health facility was due to fear that the service is illegal; alongside judgment from health care providers and society for seeking such a service that is generally perceived as evil. The assumption that the cost of receiving such services is high and a general lack of awareness about the service being provided free was also expressed. The study highlighted the need for community awareness of the legal framework on abortions to ensure women access services at any time necessary without fear of being judged, which will consequently reduce the number of abortion-related disabilities and deaths.


Asunto(s)
Aborto Inducido , Accesibilidad a los Servicios de Salud , Aceptación de la Atención de Salud , Investigación Cualitativa , Humanos , Femenino , Zambia , Adulto , Embarazo , Aborto Inducido/psicología , Aceptación de la Atención de Salud/psicología , Aceptación de la Atención de Salud/estadística & datos numéricos , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Instituciones de Salud/estadística & datos numéricos , Adulto Joven , Aborto Espontáneo/psicología
2.
Glob Public Health ; 18(1): 2242463, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-37553076

RESUMEN

This study explored the experiences of pregnant women who received two intervention models for increasing uptake of male partner HIV testing in antenatal settings. As part of a randomised trial, we interviewed twenty participants who received partner notification services only while 22 received the partner notification plus HIV self-testing. Thematic analysis was used to analyse the data. Partner notification services helped to initiate discussions of HIV testing with partners, influence partners to undergo testing, and encouraged disclosure of HIV status. Some women experienced difficulties engaging partners due to fear of their partner's reaction. Some partners were unable to test due to time constraints. The partner notification plus HIV self-testing intervention, stimulated discussion about HIV testing; facilitated testing for men at their convenience; addressed privacy/confidentiality, and stigma concerns; and provided the opportunity to disclose HIV status. Some women feared disclosure and retribution in case of discordance results. There were also challenges with men making follow-ups for confirmatory HIV tests. The addition of HIV self-test kits to partner notification services can expand HIV testing services to male partners, including those of HIV-negative women. Additional efforts are needed to link men to appropriate HIV prevention, care, and treatment services.


Asunto(s)
Infecciones por VIH , Humanos , Femenino , Masculino , Embarazo , Infecciones por VIH/diagnóstico , Infecciones por VIH/prevención & control , Zambia , Mujeres Embarazadas , Periodo Posparto , Prueba de VIH , Parejas Sexuales
3.
Int J STD AIDS ; 34(14): 1004-1011, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-37436402

RESUMEN

BACKGROUND: To meet global targets for the elimination of mother-to-child HIV transmission, tailored approaches to HIV testing strategies need prioritizing. Herein, we sought to identify individual-level factors associated with male partner HIV testing. METHODS: We conducted a secondary analysis of data from two parallel randomized trials of pregnant women living with HIV and those HIV-negative in Lusaka, Zambia. Across both trials, control groups received partner notification services only, while intervention groups received partner notification services plus HIV self-test kits for their partners. Associations between baseline factors and male partner testing were estimated using a probability difference. The outcome of interest was uptake of male partner HIV testing of any kind within 30 days of randomization. RESULTS: The parent study enrolled 326 participants. Among the 151 women in the control groups, no clear associations were noted between maternal or male partner characteristics and reported uptake of male partner HIV testing. There were positive trends favouring partner testing among women who completed primary school education, had larger households (>2 members), and whose partners were circumcised. Likewise, no clear predictors of male partner testing were identified among the 149 women in the intervention groups. However, negative trends favouring no testing were noted among older, multiparous women from larger households. CONCLUSION: No consistent predictors for male partner HIV testing across two compared strategies were observed. Our findings suggest that differentiated strategies for male partner HIV testing may not be necessary. Instead, consideration should be given to universal approaches when bringing such services to scale.


Asunto(s)
Infecciones por VIH , Autoevaluación , Humanos , Femenino , Masculino , Embarazo , Infecciones por VIH/diagnóstico , Infecciones por VIH/prevención & control , Trazado de Contacto , Parejas Sexuales , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Zambia/epidemiología , Prueba de VIH
4.
J Int AIDS Soc ; 26(3): e26075, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36929284

RESUMEN

INTRODUCTION: Couple HIV testing and counselling (CHTC) is associated with measurable benefits for HIV prevention and treatment. However, the uptake remains limited in much of sub-Saharan Africa, despite an expanded range of strategies designed to promote access. METHODS: Following PRIMSA guidelines, we conducted a systematic review to characterize CHTC uptake strategies. Five databases were searched. Full-text articles were included if they were: conducted in sub-Saharan Africa during the study period (1980-2019), targeted heterosexual couples, reported at least one strategy to promote CHTC and provided a quantifiable measure of CHTC uptake. After the initial and full-text screening, key features of the studies were abstracted and synthesized. RESULTS: Of the 6188 unique records found in our search, 365 underwent full-text review with 29 distinct studies included and synthesized. Most studies recruited couples through antenatal care (n = 11) or community venues (n = 8) and used provider-based HIV testing (n = 25). The primary demand creation strategies included home-based CHTC (n = 7); integration of CHTC into clinical settings (n = 4); distribution of HIV self-testing kits (n = 4); verbal or written invitations (n = 4); community recruiters (n = 3); partner tracing (n = 2); relationship counselling (n = 2); financial incentives (n = 1); group education with CHTC coupons (n = 1); and HIV testing at other community venues (n = 1). CHTC uptake ranged from negligible to nearly universal. DISCUSSION: We thematically categorized a diverse range of strategies with varying levels of intensity and resources used across sub-Saharan Africa to promote CHTC. Offering CHTC within couples' homes was the most common approach, followed by the integration of CHTC into clinical settings. Due to heterogeneity in study characteristics, we were unable to compare the effectiveness across studies, but several trends were observed, including the high prevalence of CHTC promotion strategies in antenatal settings and the promising effects of home-based CHTC, distribution of HIV self-tests and integration of CHTC into routine health services. Since 2019, an updated literature search found that combining partner notification and secondary distribution of HIV self-test kits may be an additionally effective CHTC strategy. CONCLUSIONS: There are many effective, feasible and scalable approaches to promote CHTC that should be considered by national programmes according to local needs, cultural context and available resources.


Asunto(s)
Infecciones por VIH , Parejas Sexuales , Humanos , Femenino , Embarazo , Infecciones por VIH/diagnóstico , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Consejo , Prueba de VIH , África del Sur del Sahara
5.
Nurs Open ; 10(4): 2132-2141, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36352500

RESUMEN

AIM: To explore the knowledge, attitude and practices of cervical cancer screening among HIV-infected women in public health facilities in Lusaka, Zambia. DESIGN: Cross-sectional study. METHODS: The study was conducted from 1st January 2020 to 28th February 2020. We used a structured questionnaire for data collection. The Structural Equation Modelling (SEM) was used to analyse relationships among latent variables (knowledge, attitude and practice). RESULTS: The overall knowledge, attitude, and practice scores of cervical cancer screening among women living with HIV were 6.86/11 (62.4%), 6.41/7 (91.6%) and 2.92/8 (36.5%), respectively. Overall, knowledge was positively and significantly associated with attitude (r = .53, p < .001) and practice (r = .38, p < 0.001). Additionally, attitude and practice were significantly associated (r = 0.29, p < .001). Our findings support the reinforcement of current public health interventional programmes to improve the knowledge about cervical cancer and screening uptake.


Asunto(s)
Infecciones por VIH , Neoplasias del Cuello Uterino , Humanos , Femenino , Neoplasias del Cuello Uterino/diagnóstico , Neoplasias del Cuello Uterino/prevención & control , VIH , Detección Precoz del Cáncer , Estudios Transversales , Conocimientos, Actitudes y Práctica en Salud , Zambia
6.
Int J Gynaecol Obstet ; 161(2): 462-469, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-36263879

RESUMEN

OBJECTIVE: To compare the performance of mid upper arm circumference (MUAC) and body mass index (BMI) for prediction of small for gestational age (SGA) in Zambia. METHODS: This is a secondary analysis of an ongoing clinical cohort that included women with a single gestation and MUAC measured before 24 weeks of pregnancy. We assessed relationships between maternal MUAC and birth weight centile using regression. The performance of MUAC and BMI to predict SGA was compared using receiver operating characteristic curves and the effect of maternal HIV was investigated in sub-group analyses. RESULTS: Of 1117 participants, 847 (75%) were HIV-negative (HIV-) and 270 (24%) were HIV-positive (HIV+). Seventy-four (7%) delivered severe SGA infants (<3rd centile), of whom 56 (76%) were HIV- and 18 (24%) were HIV+ (odds ratio [OR] 1.01, 95% confidence interval [CI] 0.58-1.75). MUAC was associated with higher birth weight centile (+1.2 centile points, 95% CI 0.7-1.6; P < 0.001); this relationship was stronger among HIV+ women (+1.7 centile points, 95% CI 0.8-2.6; P < 0.001) than HIV- women (+0.9 centile points, 95% CI 0.4-1.4; P = 0.001). The discriminatory power was similar, albeit poor (area under the curve [AUC] < 0.7), between MUAC and BMI for the prediction of SGA. In stratified analysis, MUAC and BMI showed excellent discrimination predicting severe SGA among HIV+ (AUC 0.83 and 0.81, respectively) but not among HIV- women (AUC 0.64 and 0.63, respectively). CONCLUSION: Maternal HIV infection increased the discrimination of both early pregnancy MUAC and BMI for prediction of severe SGA in Zambia. CLINICAL TRIAL NUMBER: ClinicalTrials.gov (NCT02738892).


Asunto(s)
Infecciones por VIH , Enfermedades del Recién Nacido , Femenino , Humanos , Lactante , Recién Nacido , Embarazo , Antropometría , Brazo/anatomía & histología , Peso al Nacer , Retardo del Crecimiento Fetal , Edad Gestacional , Infecciones por VIH/complicaciones , Zambia
7.
Glob Health Action ; 15(1): 2126269, 2022 12 31.
Artículo en Inglés | MEDLINE | ID: mdl-36239946

RESUMEN

BACKGROUND: Zambia is focusing on attaining HIV epidemic control by 2021, including eliminating Mother to Child Transmission (eMTCT) of HIV. However, there is little evidence to understand frontline healthcare workers' experience with the policy changes and the readiness of different health system elements to contribute to this goal. OBJECTIVE: To understand frontline healthcare workers' experience of preventing mother-to-child transmission (PMTCT) of human immunodeficiency (HIV) policy changes and to explore the health system readiness to respond to rapid changes in PMTCT policy by using the health system dynamic framework. METHOD: We conducted a qualitative study in which 35 frontline healthcare workers were selected and interviewed using a snowball sampling technique. All transcripts were analysed through thematic content analysis and deductive coding. Themes were derived and presented according to the health system dynamics framework. RESULTS: Among the ten elements of the health system dynamics framework, service delivery, context, and resources (i.e. infrastructure and supplies, knowledge and information, human resource, and finance) were critical in implementing the continuously evolving PMTCT policies. Furthermore, due to the fragmented primary health care platform in Zambia, non-governmental organisations (NGOs) were instrumental in ensuring that the PMTCT programme met the demand and requirements of the general population. Frontline healthcare workers who participated in the study described inequity in access to ART services due to the service delivery model employed in the selected study sites. CONCLUSION: The study highlights challenges when policies are implemented without consideration for the readiness, context, and capacity in which the policy is implemented. We offer lessons that can inform implementation of universal health coverage of antiretroviral therapy (ART), a strategy many countries have adopted, despite weak health systems.


Asunto(s)
Infecciones por VIH , Complicaciones Infecciosas del Embarazo , Femenino , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/prevención & control , Humanos , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Políticas , Embarazo , Atención Primaria de Salud , Análisis de Sistemas , Zambia/epidemiología
8.
Pan Afr Med J ; 43: 110, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36699973

RESUMEN

Introduction: pre-eclampsia, a pregnancy-specific condition that occurs after 20 weeks of gestation, is a significant public health problem. In the extant literature, there are still conflicting reports on whether Human immunodeficiency virus (HIV) infection and antiretroviral therapy (ART) affect preeclampsia rates. We, therefore, explored the determinants and neonatal outcomes of preeclampsia among pregnant women living with and without HIV. Methods: we reviewed delivery registers and neonatal files from the 1st January 2018, to 30th of September 2019 for women who delivered at Women and Newborn Hospital. The logistic regression model estimated the odds of preeclampsia and described the neonatal outcomes. Results: the prevalence of preeclampsia was 7.7% (95% confidence intervals: 6.8 to 8.7). On ART, pregnant women with HIV infection were less likely to develop preeclampsia than those without HIV infection (aOR=0.50; 95% CI: 0.32 to 0.80). However, neonates born to women with preeclampsia were more likely to be admitted to kangaroo mother care than neonates born to normotensive women, regardless of the HIV-exposure status. Conclusion: overall, the prevalence of preeclampsia was 7.7%, but it was less common among HIV-infected pregnant women receiving ART. Neonates born from women with preeclampsia are at increased risk of adverse outcomes, including admission to kangaroo mother care. These findings underscore the need for healthcare workers to direct their efforts on early diagnosis and detection of preeclampsia in pregnant women to prevent poor outcomes.


Asunto(s)
Infecciones por VIH , Método Madre-Canguro , Preeclampsia , Complicaciones Infecciosas del Embarazo , Recién Nacido , Niño , Embarazo , Femenino , Humanos , Preeclampsia/epidemiología , Infecciones por VIH/complicaciones , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Complicaciones Infecciosas del Embarazo/tratamiento farmacológico , Complicaciones Infecciosas del Embarazo/epidemiología , Zambia/epidemiología , Centros de Atención Terciaria , Registros Médicos
9.
Lancet Glob Health ; 9(12): e1719-e1729, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34735862

RESUMEN

BACKGROUND: Testing men for HIV during their partner's pregnancy can guide couples-based HIV prevention and treatment, but testing rates remain low. We investigated a combination approach, using evidence-based strategies, to increase HIV testing in male partners of HIV-positive and HIV-negative pregnant women. METHODS: We did two parallel, unmasked randomised trials, enrolling pregnant women who had an HIV-positive test result documented in their antenatal record (trial 1) and women who had an HIV-negative test result documented in their antenatal record (trial 2) from an antenatal setting in Lusaka, Zambia. Women in both trials were randomly assigned (1:1) to the intervention or control groups using permuted block randomisation. The control groups received partner notification services only, including an adapted version for women who were HIV-negative; the intervention groups additionally received targeted education on the use of oral HIV self-test kits for their partners, along with up to five oral HIV self-test kits. At the 30 day follow-up we collected information from pregnant women about their primary male partner's HIV testing in the previous 30 days at health-care facilities, at home, or at any other facility. Our primary outcome was reported male partner testing at a health facility within 30 days following randomisation using a complete-case approach. Women also reported male partner HIV testing of any kind (including self-testing at home) that occurred within 30 days. Randomisation groups were compared via probability difference with a corresponding Wald-based 95% CI. The trial is registered at ClinicalTrials.gov (NCT04124536) and all enrolment and follow-up has been completed. FINDINGS: From Oct 28, 2019, to May 26, 2020, 116 women who were HIV-positive (trial 1) and 210 women who were HIV-negative (trial 2) were enrolled and randomly assigned to study groups. Retention at 30 days was 100 (86%) in trial 1 and 200 (95%) in trial 2. Women in the intervention group were less likely to report facility-based male partner HIV testing in trial 1 (3 [6%] of 47 vs 15 [28%] of 53, estimated probability difference -21·9% [95% CI -35·9 to -7·9%]) and trial 2 (3 [3%] of 102 vs 33 [34%] of 98, estimated probability difference -30·7% [95% CI -40·6 to -20·8]). However, reported male partner HIV testing of any kind was higher in the intervention group than in the control group in trial 1 (36 [77%] of 47 vs 19 [36%] of 53, estimated probability difference 40·7% [95% CI 23·0 to 58·4%]) and trial 2 (80 [78%] of 102 vs 54 [55%] of 98, estimated probability difference 23·3% [95% CI 10·7 to 36·0%]) due to increased use of HIV self-testing. Overall, 14 male partners tested HIV-positive. Across the two trials, three cases of intimate partner violence were reported (two in the control groups and one in the intervention groups). INTERPRETATION: Our combination approach increased overall HIV testing in male partners of pregnant women but reduced the proportion of men who sought follow-up facility-based testing. This combination approach might reduce linkages to health care, including for HIV prevention, and should be considered in the design of comprehensive HIV programmes. FUNDING: National Institutes of Health.


Asunto(s)
Transmisión de Enfermedad Infecciosa/prevención & control , Infecciones por VIH/diagnóstico , Prueba de VIH/métodos , Atención Prenatal/métodos , Autoevaluación , Parejas Sexuales/psicología , Adulto , Trazado de Contacto/métodos , Femenino , Infecciones por VIH/prevención & control , Humanos , Masculino , Aceptación de la Atención de Salud/psicología , Embarazo , Adulto Joven , Zambia
10.
J Acquir Immune Defic Syndr ; 87(2): 860-868, 2021 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-33587508

RESUMEN

OBJECTIVE: We investigated the effect of maternal HIV and its treatment on spontaneous and provider-initiated preterm birth (PTB) in an urban African cohort. METHODS: The Zambian Preterm Birth Prevention Study enrolled pregnant women at their first antenatal visit in Lusaka. Participants underwent ultrasound, laboratory testing, and clinical phenotyping of delivery outcomes. Key exposures were maternal HIV serostatus and timing of antiretroviral therapy initiation. We defined the primary outcome, PTB, as delivery between 16 and 37 weeks' gestational age, and differentiated spontaneous from provider-initiated parturition. RESULTS: Of 1450 pregnant women enrolled, 350 (24%) had HIV. About 1216 (84%) were retained at delivery, 3 of whom delivered <16 weeks. Of 181 (15%) preterm deliveries, 120 (66%) were spontaneous, 56 (31%) were provider-initiated, and 5 (3%) were unclassified. In standardized analyses using inverse probability weighting, maternal HIV increased the risk of spontaneous PTB [RR 1.68; 95% confidence interval (CI): 1.12 to 2.52], but this effect was mitigated on overall PTB [risk ratio (RR) 1.31; 95% CI: 0.92 to 1.86] owing to a protective effect against provider-initiated PTB. HIV reduced the risk of preeclampsia (RR 0.32; 95% CI: 0.11 to 0.91), which strongly predicted provider-initiated PTB (RR 17.92; 95% CI: 8.13 to 39.53). The timing of antiretroviral therapy start did not affect the relationship between HIV and PTB. CONCLUSION: The risk of HIV on spontaneous PTB seems to be opposed by a protective effect of HIV on provider-initiated PTB. These findings support an inflammatory mechanism underlying HIV-related PTB and suggest that published estimates of PTB risk overall underestimate the risk of spontaneous PTB.


Asunto(s)
Fármacos Anti-VIH/efectos adversos , Terapia Antirretroviral Altamente Activa/efectos adversos , Infecciones por VIH/fisiopatología , Preeclampsia/epidemiología , Nacimiento Prematuro/epidemiología , Adulto , Fármacos Anti-VIH/uso terapéutico , Femenino , Edad Gestacional , Infecciones por VIH/tratamiento farmacológico , Humanos , Recién Nacido , Embarazo , Nacimiento Prematuro/diagnóstico por imagen , Atención Prenatal , Factores de Riesgo , Ultrasonografía , Adulto Joven , Zambia/epidemiología
11.
Int J Gynaecol Obstet ; 146(2): 206-211, 2019 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-30973655

RESUMEN

OBJECTIVE: To evaluate whether maternal HIV serostatus and plasma viral load (VL) are associated with midtrimester cervical length (CL). METHODS: The Zambian Preterm Birth Prevention Study (ZAPPS) is an ongoing prospective cohort that began enrolling in Lusaka in August 2015. Pregnant women undergo ultrasound to determine gestational age and return for CL measurement at 16-28 weeks. We evaluated crude and adjusted associations between dichotomous indicators and short cervix (≤2.5 cm) via logistic regression, and between VL and CL as a continuous variable via linear regression. RESULTS: This analysis includes 1171 women enrolled between August 2015 and September 2017. Of 294 (25.1%) HIV-positive women, 275 (93.5%) had viral load performed close to CL measurement; of these, 148 (53.8%) had undetectable virus. Median CL was 3.6 cm (IQR 3.5-4.0) and was similar in HIV-infected (3.7 cm, IQR 3.5-4.0) versus uninfected (3.6 cm, IQR 3.5-4.0) participants (P=0.273). The odds of short CL were similar by HIV serostatus (OR 0.64; P=0.298) and detectable VL among those infected (OR 2.37, P=0.323). We observed no association between log VL and CL via linear regression (-0.12 cm; P=0.732). CONCLUSION: We found no evidence of association between HIV infection and short CL.


Asunto(s)
Medición de Longitud Cervical/estadística & datos numéricos , Infecciones por VIH/sangre , Carga Viral , Adulto , Femenino , Edad Gestacional , Infecciones por VIH/diagnóstico , Humanos , Modelos Lineales , Tamizaje Masivo , Embarazo , Segundo Trimestre del Embarazo , Estudios Prospectivos , Adulto Joven , Zambia/epidemiología
12.
Int J Gynaecol Obstet ; 144(1): 9-15, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-30267538

RESUMEN

OBJECTIVE: To quantify differences in assessing preterm delivery when calculating gestational age from last menstrual period (LMP) versus ultrasonography biometry. METHODS: The Zambian Preterm Birth Prevention Study is an ongoing prospective cohort study that commenced enrolment in August 2015 at Women and Newborn Hospital of University Teaching Hospital in Lusaka, Zambia. Women at less than 20 weeks of pregnancy who were enrolled between August 17, 2015, and August 31, 2017, and underwent ultrasonography examination were included in the present analysis. The primary outcome was the difference between ultrasonography- and LMP-based estimated gestational age. Associations between baseline predictors and outcomes were assessed using simple regression. The proportion of preterm deliveries using LMP- and ultrasonography-derived gestational dating was calculated using Kaplan-Meier analysis. RESULTS: The analysis included 942 women. The discrepancy between estimating gestational age using ultrasonography and LMP increased with greater gestational age at presentation and among patients with no history of preterm delivery. In a Kaplan-Meier analysis of 692 deliveries, 140 (20.2%, 95% confidence interval [CI] 17.7-23.0) and 79 (11.4%, 95% CI 9.6-13.6) deliveries were classified as preterm by LMP and ultrasonography estimates, respectively. CONCLUSION: Taking ultrasonography as a standard, a bias was observed in LMP-based gestational age estimates, which increased with advancing gestation at presentation. This resulted in misclassification of term deliveries as preterm.


Asunto(s)
Edad Gestacional , Ciclo Menstrual , Adulto , Femenino , Humanos , Recién Nacido , Variaciones Dependientes del Observador , Embarazo , Nacimiento Prematuro/epidemiología , Nacimiento Prematuro/prevención & control , Estudios Prospectivos , Ultrasonografía Prenatal , Adulto Joven , Zambia/epidemiología
13.
Int J Gynaecol Obstet ; 143(3): 360-366, 2018 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30207602

RESUMEN

OBJECTIVE: Cesarean delivery (CD) may be associated with stillbirth in future pregnancies. We investigated prior CD as a risk factor for stillbirth in Lusaka, Zambia. METHODS: We conducted a retrospective cohort analysis of women with only one prior pregnancy who delivered between February 1, 2006, and May 31, 2013. We analysed data from the Zambia Electronic Perinatal System. Maternal and infant characteristics were analyzed for association with stillbirth using Pearson's χ2 test or the Wilcoxon rank-sum test. We calculated risk ratios for the relationship between stillbirth (antepartum vs intrapartum) and prior CD, with a log Poisson model to adjust for confounding. RESULTS: Of 57 320 women in our cohort, 1933 (3.4%) reported a prior CD. There were 1012 (1.8%) stillbirths in the no prior CD group and 81 (4.2%) in the prior CD group (P<0.001). In multivariate models adjusting for stillbirth risk factors, prior CD was associated with antepartum (adjusted risk ratio 1.56, 95% confidence interval 1.08-2.24) and intrapartum (adjusted risk ratio 3.26, 95% confidence interval 2.40-4.42) stillbirth compared with no prior CD. The difference between groups was most apparent at 36-37 weeks' gestation (log-rank P<0.001). CONCLUSION: Prior CD was associated with increased risk of stillbirth. Improved monitoring during labor and safe methods for induction are urgently needed in low-resource settings.


Asunto(s)
Cesárea/estadística & datos numéricos , Muerte Perinatal , Mortinato/epidemiología , Adulto , Cesárea/efectos adversos , Femenino , Edad Gestacional , Humanos , Recién Nacido , Embarazo , Estudios Retrospectivos , Factores de Riesgo , Adulto Joven , Zambia/epidemiología
14.
Am J Trop Med Hyg ; 96(1): 170-177, 2017 Jan 11.
Artículo en Inglés | MEDLINE | ID: mdl-27799645

RESUMEN

In Lusaka, Zambia, where malaria prevalence is low, national guidelines continue to recommend that all pregnant women receive sulfadoxine-pyrimethamine (SP) for malaria prophylaxis monthly at every scheduled antenatal care visit after 16 weeks of gestation. Human immunodeficiency virus (HIV)-positive women should receive co-trimoxazole prophylaxis for HIV and not SP, but many still receive SP. We sought to determine whether increased dosage of SP is still associated with a reduced risk of low birth weight (LBW) in an area where malaria transmission is low. Our secondary objective was to determine whether any association between SP and LBW is modified by receipt of antiretroviral therapy (ART). We analyzed data routinely collected from a cohort of HIV-positive pregnant women with singleton births in Lusaka, Zambia, between February 2006 and December 2012. We used a log-Poisson model to estimate the risk of LBW by dosage of SP and to determine whether the association between SP and LBW varied by receipt of ART. Risk of LBW declined as the number of doses increased and appeared lowest among women who received three doses (adjusted risk ratio [ARR] = 0.78; 95% confidence interval [CI] = 0.64-0.95). In addition, women receiving combination ART had a higher risk of delivering an LBW infant compared with women receiving no treatment or prophylaxis (ARR = 1.18; 95% CI = 1.09-1.28), but this risk was attenuated among women who were receiving SP (risk ratio = 1.09; 95% CI = 0.99-1.21). SP was associated with a reduced risk of LBW in HIV-positive women, including those receiving ART, in a low malaria prevalence region.


Asunto(s)
Recién Nacido de Bajo Peso , Malaria/epidemiología , Malaria/prevención & control , Complicaciones Parasitarias del Embarazo/prevención & control , Pirimetamina/efectos adversos , Pirimetamina/farmacología , Sulfadoxina/efectos adversos , Sulfadoxina/farmacología , Adulto , Fármacos Anti-VIH , Estudios de Cohortes , Combinación de Medicamentos , Quimioterapia Combinada , Femenino , Infecciones por VIH/tratamiento farmacológico , Humanos , Sueros Inmunes , Lactante , Embarazo , Adulto Joven , Zambia/epidemiología
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