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2 results on '"Labor complications/epidemiology"'

1. No cry at birth: global estimates of intrapartum stillbirths and intrapartum-related neonatal deaths.

Author

Lawn, Joy, Shibuya, Kenji, and Stein, Claudia

Subjects
*NEONATAL death, *ASPHYXIA neonatorum, *REGRESSION analysis, *INFANT mortality, *DEATH
Abstract

Objective Fewer than 3% of 4 million annual neonatal deaths occur in countries with reliable vital registration (VR) data. Global estimates for asphyxia-related neonatal deaths vary from 0.7 to 1.2 million. Estimates for intrapartum stillbirths are not available. We aimed to estimate the numbers of intrapartum-related neonatal deaths and intrapartum stillbirths in the year 2000. Methods Sources of data on neonatal death included: vital registration (VR) data on neonatal death from countries with full (> 90%) VR coverage (48 countries, n = 97 297); studies identified through literature searches (> 4000 abstracts) and meeting inclusion criteria (46 populations, 30 countries, n = 12 355). A regression model was fitted to cause-specific proportionate mortality data from VR and the literature. Predicted cause-specific proportions were applied to the number of neonatal deaths by country, and summed to a global total. Intrapartum stillbirths were estimated using median cause-specific mortality rate by country (73 populations, 52 countries, n = 46 779) or the subregional median in the absence of country data. Findings Intrapartum-related neonatal deaths were estimated at 0.904 million (uncertainty 0.65-1.17), equivalent to 23% of the global total of 4 million neonatal deaths. Country-level model predictions compared well with population-based data sets not included in the input data. An estimated 1.02 million intrapartum stillbirths (0.66-1.48 million) occur annually, comprising 26% of global stillbirths. Conclusion Intrapartum-related neonatal deaths account for almost 10% of deaths in children aged under 5 years. Intrapartum stillbirths are a huge and invisible problem, but are potentially preventable. Programmatic attention and improved information are required. [ABSTRACT FROM AUTHOR]

Published
2005

2. Obesidade e ganho de peso gestacional: cesariana e complicações de parto

Author

Luiz Carlos Seligman, Bruce Bartholow Duncan, Maria Inês Schmidt, Dea Suzana Miranda Gaio, Leandro Branchtein, and Sotero Serrate Mengue

Subjects
Meconium, Weight Gain, Body Mass Index, Labor, premature/epidemiology, Ganho de peso, Pregnancy, Perinatal mortality, education.field_of_study, Obstetrics, Vaginal delivery, Pregnancy Outcome, Estudos de coortes, Mecônio, Obesidade, Complicações do trabalho de parto, Educational Status, Cohort studies, Female, medicine.symptom, Underweight, Hemorragia pós-parto, Brazil, Risk, Labor, premature, medicine.medical_specialty, Population, Prenatal care, Labor complications/epidemiology, Mortalidade perinatal, medicine, Humans, Obesity, education, Weight gain, Gynecology, Cesarean Section, business.industry, Infant, Newborn, Public Health, Environmental and Occupational Health, Obesity/epidemiology, medicine.disease, Obstetric Labor Complications, Pregnancy Complications, Postpartum hemorrhage, Logistic Models, Relative risk, Gravidez, business, Cesarean section, Cesárea, Body mass index, Labor complications, Trabalho de parto prematuro
Abstract

OBJECTIVE: To assess the association between pre-gestational obesity and weight gain with cesarean delivery and labor complications. METHODS: A total of 4,486 women 20-28 weeks pregnant attending general prenatal care clinics of the national health system in Brazil from 1991 to 1995 were enrolled and followed up through birth. Body mass index categories based on prepregnancy weight and total weight gain were calculated. Associations between body mass index categories and labor complications were adjusted through logistic regression analysis. RESULTS: Obesity was present in 308 (6.9%) patients. Cesarean delivery was performed in 164 (53.2%) obese, 407 (43.1%) pre-obese, 1,045 (35.1%) normal weight and 64 (24.5%) underweight women. The relative risk for cesarean delivery in obese women was 1.8 (95% CI: 1.5-2.0) compared to normal weight women. Greater weight gain was particularly associated with cesarean among the obese (RR 4th vs 2nd weight gain quartile 2.2; 95% CI: 1.4-3.2). Increased weight at the beginning of pregnancy was associated with a significantly higher adjusted risk of meconium with vaginal delivery and perinatal death and infection in women submitted to cesarean section. Similarly, greater weight gain during pregnancy increased the risk for meconium and hemorrhage in women submitted to vaginal delivery and for prematurity with cesarean. CONCLUSIONS: Pre-gestational obesity and greater weight gain independently increase the risk of cesarean delivery, as well as of several adverse outcomes with vaginal delivery. These findings provide further evidence of the negative effects of prepregnancy obesity and greater gestational weight gain on pregnancy outcomes. OBJETIVO: Avaliar a associação de obesidade pré-gestacional e ganho de peso excessivo com cesariana e outras complicações do parto. MÉTODOS: Um total de 4.486 mulheres com 20-28 semanas de gravidez do pré-natal geral do Sistema Único de Saúde de seis capitais brasileiras foram arroladas entre 1991-1995 e seguidas até o parto. As categorias do índice de massa corporal e o ganho de peso total foram calculados com base no peso pré-gestacional. Associações entre estas categorias nutricionais e complicações do parto foram ajustadas por regressão logística. RESULTADOS: A obesidade foi observada em 308 (6,9%) pacientes. As cesarianas ocorreram em 164 (53,2%) obesas, 407 (43,1%) pré-obesas, 1.045 (35,1%) normais e em 64 (24,5%) mulheres de baixo peso. O risco relativo para cesariana na comparação de obesas com grávidas de peso normal foi 1,8 (IC 95%: 1.5-2.0). Ganho de peso excessivo mostrou a maior associação com cesariana entre obesas (RR=2,2; IC 95%: 1,4-3,2) para 4º vs 2º quartil. Maior peso pré-gravídico esteve associado com risco ajustado significativamente aumentado para mecônio no parto vaginal e com prematuridade, morte perinatal ou infecção na cesariana. Similarmente, grande ganho de peso aumentou o risco para mecônio e hemorragia materna no parto vaginal e com prematuridade na cesariana. CONCLUSÕES: A obesidade pré-gestacional e o ganho de peso excessivo aumentaram de forma independente o risco de cesariana e vários resultados adversos durante o parto vaginal. Esses achados oferecem evidências adicionais aos efeitos negativos da obesidade pré-gravídica e do ganho de peso excessivo na gravidez e parto.

Published
2006

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