Demographics and baseline characteristics of all study participants
| No TB | DS-TB | MDR-TB | |
| Subjects | 161 | 144 | 33 |
| Demographics | |||
| Age years | 37.6 (20.7–52.5) | 30.0 (20.4–45.2) | 29.0 (22.4–37.7) |
| <18 years | 30 (18.6) | 18 (6.1) | 2 (6.1) |
| Male | 49 (30.4) | 83 (57.6) | 19 (57.6) |
| Height cm | 158.1±8.8 | 161.1±9.5 | 160.9±11.1 |
| BMI kg·m−2 | 26.0±5.1 | 24.5±4.2 | 24.0±3.8 |
| Born in Lima | 112 (69.6) | 102 (70.8) | 28 (84.9) |
| Ethnicity | |||
| Caucasian | 16/152 (10.5) | 9/136 (6.6) | 1/28 (3.6) |
| African-American | 5/152 (3.3) | 2/136 (1.5) | 0/28 (0.0) |
| Mestizo (mixed) | 131/152 (86.2) | 125/136 (91.9) | 27/28 (96.4) |
| Socioeconomic | |||
| Employment | 75/160 (46.9) | 101 (70.1) | 16/32 (50.0) |
| Education | |||
| Primary or less | 31 (19.3) | 13 (9.0) | 3 (9.1) |
| Secondary | 89 (55.3) | 79 (54.9) | 17 (51.5) |
| Technical | 35 (21.7) | 34 (23.6) | 5 (15.2) |
| University | 6 (3.7) | 18 (12.5) | 8 (24.2) |
| Crowding Index persons·m–2 | 0.13 (0.08–0.23) | 0.14 (0.08–0.25) | 0.13 (0.06–0.17) |
| Exposures | |||
| Current smoker# | 17/160 (10.6) | 12 (8.3) | 1/32 (3.1) |
| Ever-smoker | 18/159 (11.3) | 24/143 (16.8) | 4/32 (12.5) |
| Passive smoke | 38/160 (23.8) | 15 (10.4) | 1 (3.0) |
| Indoor air pollution¶ | 39/158 (24.7) | 35/143 (24.5) | 6/32 (18.8) |
| Occupational dust+ | 40/160 (25.0) | 54/143 (37.8) | 5 (15.2) |
Data are presented as N, median (interquartile range), n (%), mean±sd or n/N (%), unless otherwise stated. TB: tuberculosis; DS: drug-susceptible; MDR: multidrug-resistant; BMI: body mass index. #: smoked ≥1 cigarette in the last 30 days; ¶: indoor use of bio-combustible fuel such as wood-fire cooking (ever); +: worked in a dusty job (ever).