Causes of stillbirth, neonatal death and early childhood death in rural Zambia by verbal autopsy assessments

Abstract

Objectives To describe specific causes of the high rates of stillbirth, neonatal death and early child childhood death in Zambia. Methods We conducted a household-based survey in rural Zambia. Socio-demographic and delivery characteristics were recorded, alongside a maternal HIV test. Verbal autopsy questionnaires were administered to elicit mortality-related information and independently reviewed by three experienced paediatricians who assigned a cause and contributing factor to death. For this secondary analysis, deaths were categorized into: stillbirths (foetal death ≥28weeks of gestation), neonatal deaths (≤28days) and early childhood deaths (>28days to <2years). Results Among 1679 households, information was collected on 148 deaths: 34% stillbirths, 26% neonatal and 40% early childhood deaths. Leading identifiable causes of stillbirth were intrauterine infection (26%) and birth asphyxia (18%). Of 32 neonatal deaths, 38 (84%) occurred within the first week of life, primarily because of infections (37%) and prematurity (34%). The majority of early childhood deaths were caused by suspected bacterial infections (82%). HIV prevalence was significantly higher in mothers who reported an early childhood death (44%) than mothers who did not (17%; P<0.01). Factors significantly associated with mortality were lower socio-economic status (P<0.01), inadequate water or sanitation facilities (P<0.01), home delivery (P=0.04) and absence of a trained delivery attendant (P<0.01). Conclusion We provide community-level data about the causes of death among children under 2years of age. Infectious etiologies for mortality ranked highest. At a public health level, such information may have an important role in guiding prevention and treatment strategies to address perinatal and early childhood mortality. © 2011 Blackwell Publishing Ltd.