Table 1: Subject information.

HIV− TB casesHIV+ TB casesTST+ HHCIncident cases

n=767713535
Age26 21–37 39 32–47 27 20–34 23 20–32
sex (M : F)56 : 2045 : 3262 : 7316 : 19
Recruitment13 6–20 5 0.4–16 3 1–9 7 1–12
6-months25 13–37 6 0.9–23 n/a7 1–20
18-monthsn/an/an/a16 10–30

M: male; F: female; : Antibody concentration; TST+ HHC: tuberculin skin test positive household contact; incident case: HHC progressing between 3 months to 2 years following recruitment of a TB index case. Data expressed as median [interquartile range].