Figure 1.
An overview of recruitment numbers and data analysis strategy. A total of 2317 DNA samples were available comprising 1920 new samples from three different Ethiopian ethnic groups (Amhara, Oromo and Wolaita) and 397 samples from a previous GWAS study on podoconiosis undertaken in a different cohort from the Wolaita group16. Twenty-eight new samples were excluded following QC checks. Data were analysed in three sets: dataset 1 comprised all newly recruited individuals from the three ethnic groups; dataset 2 comprised dataset 1 minus the Wolaita II cohort and ‘other ethnic groups’ samples; and dataset 3 comprised the total samples available for analysis from all cohorts.