Additional file 1 of Inverse association of falciparum positivity with endemic Burkitt lymphoma is robust in analyses adjusting for pre-enrollment malaria in the EMBLEM case-control study

Additional file 1: Supplementary Table 1. Questionnaire variables/data elements and how they were coded for exploratory factor analysis. Supplementary Table 2. Eigenvalue and variance explained by extracted factors shown for each imputed dataset and by study country. Supplementary Table 3. Odds ratios and 95% confidence intervals (CIs) of the association of factors with falciparum infection risk in controls, by country. Supplementary Table 4. Odds ratios and 95% confidence intervals (CIs) of the association of factors with eBL risk, by country.