[Perinatal mortality: extent and causes in Lubumbashi, Democratic Republic of Congo]. / La mortalité périnatale : ampleur et causes à Lubumbashi, République démocratique du Congo.

BACKGROUND: The present study was initiated in order to determine the rate, the causes and the risk factors for perinatal mortality in Lubumbashi, Democratic Republic of Congo. METHODS: Data for this cross-sectional study were collected by interviewing participating women and by analysis of medical files. Women who gave birth in 2010 and were residents of Lubumbashi during the same year were included.Women were included irrespective of the pregnancy outcome and perinatal survival was determined for newborns aged at least seven days.Women were recruited from households selected by cluster sampling for healthcare zones. Perinatal mortality was defined as stillbirths and early neonatal deaths per 1000 births. Risk factors were sought using the odds ratio method adjusted by logistic regression using a 5% threshold. RESULTS: Among 11,536 surveyed women, there were 11,633 births including 177 stillbirths and 133 early neonatal deaths. Perinatal mortality was 27% (95%IC = 23.7­29.6%). The causes of this mortality were respiratory distress (58.2%), neonatal infection (pneumonia and neonatal meningitis, 13.5%), complications of prematurity (9.0%), neonatal tetanus (1.6%), congenital malformations (0.6%). The cause of perinatal death was unknown for 17.1%. Risk factors for perinatal mortality were: unmarried mother; home delivery; complicated delivery; dystocia; caesareansection; multiple pregnancy; low birth weight; prematurity. CONCLUSION: Action should be taken to improve availability, use and quality of Emergency obstetrical and neonatal care. Women should be better informed concerning the danger signs of pregnancy and childbirth.

[Risk factors for perinatal mortality in the city of Lubumbashi, Democratic Republic of Congo]. / Les facteurs de risque de la mortalité périnatale dans la ville de Lubumbashi en République démocratique du Congo.

BACKGROUND: The aim of this study is to establish factors explaining perinatal death rates in the city of Lubumbashi. METHODS: We have carried out a case controlled study in the maternity ward of Jason Sendwe hospital. Perinatal death cases have been compared to those of surviving newborn children among parturient women in the course of 2008. Sociodemographic characteristics, maternal morbidity, children's typical features, have been studied as independent variables. Their effect on perinatal mortality has been assessed using an adjusted odds ratio value at a 5% confidence interval and a logistic regression model. RESULTS: In total, we considered 2279 births (mother and child pairs) for our study. Among these were 415 perinatal mortality cases and 1864 control cases. After adjustment for several parameters, household chores (AOR=1.8; 95% IC=1.2-2.9), multiple pregnancies (AOR=1.9; 95% IC=1.2-2.9), malaria (AOR=1.4; 95% IC=1.1-1.8), primiparity (AOR=1.7; 95% IC=1.3-2.4), stillbirth (AOR=5.2; 95% IC=2.5-11.0) and prematurity (AOR=2.9; 95% IC=1.5-5.5) in previous pregnancies, onset of antepartum ferver (AOR=3.0; 95% IC=1.2-7.3) and antepartum hemorrhage (AOR=6.8; 95% IC=3.1-15.0), lack of fetal motions near delivering time, dystocias (AOR=2.0; 95% IC=1.3-3.0), low birthweight (AOR=15.7; 95% IC=11.2-22.0), very low birthweight (AOR=49.0; 95% IC=28.6-85.1) and foetal macrosomia (AOR=3.5; 95% IC=1.8-7.0) were the main factors explaining perinatal mortality. CONCLUSION: Perinatal mortality in Lubumbashi remains associated with several avoidable factors. Basic and emergency obstetrical-neonatal care (B-EMONC) should be improved. Significant efforts should be made in this direction. Perinatal audits should be established for a good heath care quality follow-up. Obstetrical care should be offered as a continuum in order to facilitate communication between the different caregivers.