Fig 4. Influence of fixed effects coefficients on the efficacy of albendazole against soil-transmitted helminth infections.
Individual egg reduction rates, ERRi, were estimated by fitting the Bayesian model [15,16,21] to fecal egg count data on Ascaris lumbricoides (panel A), Trichuris trichiura (panel B) and hookworm (panel C) collected before and after administration of a single 400 mg oral dose of albendazole in three study sites, Ethiopia, Lao PDR and Pemba Island (Tanzania). Points, horizontal thick and thin lines indicate the median, the 50% and the 95% credible interval respectively. The reference ERRi (i.e., with fixed effects set to the reference categories of Ethiopia, female, age 6–9 years, follow up >2 weeks and no coinfection) is indicated by the solid vertical line. All estimates correspond to the ERRi associated with a ‘typical individual’ (i.e., with random effects terms set to 0).