Study of lymphoedema of non-filarial origin in the northwest region of Cameroon:spatial distribution, profiling of cases and socio-economic aspects of podoconiosis

Background Although podoconiosis is endemic in Cameroon, little is known about its epidemiology and spatial distribution. Methods This cross-sectional, population-based study enrolled all adults (≥15 y) residing in the districts of the northwest region of Cameroon for 10 or more years. Participants were interviewed and had a physical examination. The study outcomes were prevalence estimates of lymphoedema and podoconiosis. House-to-house screening was conducted by Community Health Implementers (CHIs). CHIs registered all individuals with lymphoedema and collected additional individual and household-related information. A panel of experts re-examined and validated all lymphoedema cases registered by CHIs. Results Of the 439 781 individuals registered, 214 195 were adults (≥15 y old) and had lived in the districts of the region for more than 10 y. A total of 2143 lymphoedema cases were identified by CHIs, giving a prevalence of lymphoedema of 1.0% (2143/214 195; 95% CI, 0.96–1.04). After review by experts, podoconiosis prevalence in the study area was 0.48% (1049/214 195; 95% CI, 0.46–0.52). The prevalence of podoconiosis varied by health district, from 0.16% in Oku to 1.92% in Bafut (p Conclusion This study provides an insight into the geographical distribution and epidemiology of podoconiosis in the North West region of Cameroon, yet management is limited. Evidence-informed targeted interventions are needed to manage people with lymphoedema.