Effect of STH and hookworm infections on hemoglobin levels in podoconiosis patients using multivariate regression.

*Interaction term. **Adjusted for age, sex, occupation and educational status. The reference group for different categories of geohelminth infections was defined to include the following: †For any STH infections: Podoconiosis patients uninfected by any species of geohelminth. ††For hookworm infection: Podoconiosis patients uninfected by any species of geohelminth, and patients infected with non hookworm geohelminths. †††For non-hookworm STH and hookworm: Podoconiosis patients uninfected by any species of geohelminth, and patients infected with only one species.