标题：Prioritising health-care strategies to reduce childhood mortality, insights from Child Health and Mortality Prevention Surveillance (CHAMPS): a longitudinal study
摘要：Background: Globally, mortality in children younger than 5 years has been decreasing over the past few decades, but high under-5 mortality persists across regions of sub-Saharan Africa and southern Asia. Interventions—such as improved quality of clinical and antenatal care, better access to emergency obstetrical procedures, better triage and risk stratification, better immunisation coverage, or infection control measures—could substantially reduce deaths, but it is unclear which strategies could save the most lives. We aimed to use data from the Child Health and Mortality Prevention Surveillance (CHAMPS) network to examine which health-care and public health improvements could have prevented the most deaths. Methods: We used standardised, population-based, mortality surveillance data collected by CHAMPS from seven sites (Bangladesh, Ethiopia, Kenya, Mali, Mozambique, Sierra Leone, and South Africa) to understand preventable causes of death in children younger than 5 years. Deaths were investigated with minimally invasive tissue sampling, a post-mortem approach using biopsy needles for sampling key organs and body fluids. For each death, an expert panel reviewed case data to determine whether the death was preventable and (if preventable) provided recommendations as to how the death could have been avoided. We evaluated which health system improvements could have prevented the most deaths among those who underwent minimally invasive tissue sampling for each age group: stillbirths, neonatal deaths (aged <28 days), and infant or child deaths (aged 1 month to <5 years). Findings: We included 1982 eligible deaths (with minimally invasive tissue sampling performed) that occurred between Dec 9, 2016, and Feb 29, 2020, including 556 stillbirths, 828 neonatal deaths, and 598 child deaths. Of these 1982 deaths across all seven CHAMPS sites, 393 (71%) stillbirths, 583 (70%) neonatal deaths, and 487 (81%) child deaths were deemed preventable. The most recommended measures to prevent deaths were improvements in antenatal or obstetric care (recommended for 44% of stillbirths and 31% of neonatal deaths), clinical management and quality of care (stillbirths 26%, neonates 32%, children 46%), health-seeking behaviour (children 24%), and health education (children 22%). Given that 70% of under-5 deaths are stillbirths and neonatal deaths, an intervention that focuses on these age groups (eg, improved antenatal care) could prevent the most under-5 deaths. Interpretation: These data indicate areas in which greater focus on improving existing systems could prevent the most deaths. Investments in interventions such as better access to antenatal care, improvements in clinical practice, and public education campaigns could substantially reduce child mortality. Funding: Bill & Melinda Gates Foundation (OPP1126780).
