Table 1.
Baseline characteristics and comparison of FeNO levels, cases vs. controls
| TB participants* | Community controls* | P value | |
|---|---|---|---|
| N = 38 | N = 93 | ||
| Gender, male, % | 30 (78.9) | 49 (52.7) | 0.005 |
| Age, years | 36.1 (17.1) | 39.9 (15.3) | NS |
| Weight, kg | 55.8 (9.4) | 65.8 (12.8) | 0.001 |
| Height, cm | 160.1 (8.8) | 154.8 (18.8) | NS |
| BMI | 21.8 (3.3) | 26.8 (5.2) | 0.001 |
| Previous episode of TB, % | 13 (34.2) | 0.0 | – |
| Household contact with active TB, % | 6 (16.2) | 0.0 | – |
| Family member undergoing TB treatment, % | 3 (7.9) | 1 (1.08) | 0.027 |
| Weekly expenditure on food, USD$ (median, IQR) | 36 (29–72) | 53 (40–67) | 0.027 |
| Number of rooms in home (median, IQR) | 2 (1–4) | 3 (2–4) | NS |
| Number of family members in home (median, IQR) | 4 (1–9) | 5 (2–10) | NS |
| FeNO, ppb (median, IQR) | 13 (8–26) | 15 (12–24) | 0.23 |
BMI = body mass index; FeNO = fractional concentration of exhaled nitric oxide; IQR = interquartile range; NS = not significant; ppb = parts per billion; TB = tuberculosis.
*
All data are mean (standard deviation), unless otherwise stated.