CD4 and tuberculosis: Participants who had remained in the studyand had electrolytes measured at the end of follow-up were older, more likely to be female,be on tuberculosis treatment at baseline, had higher socio-economic status, higher baselineBMI, higher baseline CD4 count and were less likely to be divorced; for having a phosphatemeasurement they were also more likely to be Zambian (online Supplementary Tables S2 andS3).