Table.

Participant characteristics

		Study participants (N=197)
Age, years		34 (24–40)
Sex
	Female	95 (48%)
	Male	102 (52%)
Study group
	Recent household exposure to human index case with smear-positive pulmonary tuberculosis, Addis Ababa	69 (35%)*
	Recent occupational exposure to bovine index case with culture-positive bovine tuberculosis, recruited in cattle farms	56 (28%)†
	Attending outpatient HIV clinic, Addis Ababa	72 (37%)‡
BCG scar		78 (40%)
Current smoker		8 (4%)
HIV infection		75 (38%)§
QuantiFERON-positive		98 (50%)¶

Data are median (IQR) or n (%).

^*Three (4%) of 69 had HIV infections.

^†0 (0%) of 56 had HIV infections, and 10 (18%) had recent household tuberculosis contact.

^‡72 (100%) of 72 had HIV infections, five (7%) had recent household tuberculosis contact, and 14 (19%) had previously had active tuberculosis.

^§Viral load was undetectable in 59 (92%) of 64 HIV-infected individuals for whom data were available.

^¶25 (26%) of 98 had HIV infections, and 40 (41%) had a BCG scar.