Journal
INTERNATIONAL HEALTH
Volume 10, Issue 4, Pages 285-293Publisher
OXFORD UNIV PRESS
DOI: 10.1093/inthealth/ihy028
Keywords
Cameroon; epidemiology; non-filarial lymphoedema; podoconiosis; spatial distribution
Categories
Funding
- Wellcome Trust, UK [091956]
- Wellcome Trust Intermediate Fellowship in Public Health and Tropical Medicine [201900]
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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<0.05). A total of 374 patients were recruited by stratified random sampling from the validated CHIs' register to assess the clinical features and socioeconomic aspects of the disease. Patients reportedly were said to have first noticed swelling at an average age of 41.9 +/- 19.1 (range: 6-90 y). Most patients (86.1%; 315/366) complained of their legs suddenly becoming hot, red and painful. The majority (96.5%; 361/374) of the interviewees said they had worn shoes occasionally at some point in their life. The reported mean age at first shoe wearing was 14.2 +/- 10.1 (+/- SD, range 1-77 y). A high proportion (82.8%; 309/374) of the participants wore shoes at the time of interview. Of those wearing shoes, only 21.7% (67/309) were wearing protective shoes. 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.
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