Unpacking the “complex” in complex evaluations: lessons learned conducting large scale evaluations of maternal and child health programmes over 20 years of collaborative research in Ghana

Abstract

The development of integrated community-based maternal neonatal and child health (MNCH) programmes is essential to address the gap in coverage of universal health care in sub-Saharan Africa, which bears the highest burden for poor MNCH outcomes globally. However, to assess their impact in practice requires the design and implementation of increasingly complex evaluation approaches in ‘real-world’ settings frequently characterised by underserved health and civil registration systems. This commentary introduces the series titled “Lessons Learned from Operationalising Impact Evaluations of MNCH Interventions”. Based on a 20-year collaboration between the Kintampo Health Research Centre in Ghana (KHRC) and the London School of Hygiene and Tropical Medicine in the United Kingdom (LSHTM), the series brings together an international group of authors responsible for the design and conduct of seminal MNCH trials of community health worker-led interventions, including policy-relevant trials of vitamin A supplementation conducted since 1995. Underpinning the research was a long running surveillance system following up 120,000 women and infants each month—the largest research surveillance system on the continent at the time. The papers in this series provide honest and practical accounts of lessons learned in the design of quantitative and qualitative systems to track key MNCH outcomes, supported by sustainable strategies to maximise engagement with study communities. This commentary offers a retrospective overview of the collaboration and its many achievements, and highlights key messages from the series relevant for future research in MNCH.