Table 3. Comparison of Housing, Soil, and Pet Exposure between the Two Groups.
| NTM-PD (n=150) | Control (n=217) | p value | OR* (95% CI) | |||
|---|---|---|---|---|---|---|
| Housing | 0.113 | |||||
| Apartment building | 126 (84.0) | 119 (54.8) | Reference | |||
| Detached house | 24 (16.0) | 50 (23.0) | 0.61 (0.33–1.09) | |||
| Soil exposure | ||||||
| Farming | 23 (15.3) | 26 (12.0) | 0.440 | 1.36 (0.71–2.63) | ||
| ≥1 time/week | 18 (12.0) | 21 (9.7) | 0.591 | 1.42 (0.68–2.94) | ||
| Duration, yr | 16.5±18.5 | 20.8±18.6 | 0.425 | |||
| Flowerbed | 27 (18.0) | 43 (19.8) | 0.764 | 0.87 (0.49–1.55) | ||
| ≥1 time/week | 11 (7.3) | 27 (12.4) | 0.160 | 0.63 (0.28–1.34) | ||
| Duration, yr | 12.0±10.1 | 15.9±15.3 | 0.204 | |||
| Flowerpot | 53 (35.3) | 80 (36.9) | 0.849 | 1.04 (0.64–1.67) | ||
| ≥1 time/week | 6 (4.0) | 7 (3.2) | 0.915 | 1.40 (0.40–4.75) | ||
| Duration, yr | 14.4±10.6 | 18.6±12.1 | 0.040 | |||
| Any soil activity | 72 (48.0) | 111 (51.2) | 0.626 | 0.94 (0.60–1.50) | ||
| ≥1 time/week | 27 (18.0) | 43 (26.1) | 0.113 | 0.62 (0.33–1.15) | ||
| Pet exposure | ||||||
| Pet | 25 (16.8) | 30 (13.8) | 0.530 | 1.31 (0.69–2.48) | ||
| Dog | 18 (72.0) | 25 (83.3) | 0.071 | |||
| Cat | 5 (20.0) | 2 (6.7) | ||||
| Fish | 0 (0.0) | 3 (10.0) | ||||
| Other† | 2 (8.0) | 0 (0.0) | ||||
| Duration, yr | 11.5±5.6 | 11.3±11.0 | 0.926 | |||
CI, confidence interval; NTM-PD, nontuberculous mycobacterial pulmonary disease; OR, odds ratio.
Data are presented as numbers (%) or means±standard deviation.
*Adjusted for age, sex, body mass index, smoking, history of tuberculosis, and history of gastroesophageal reflux disease, †Both dogs and cats.