Table 4. Comparison of Water Exposure between the Two Groups.
| NTM-PD* (n=102) | Control (n=217) | p value | OR† (95% CI) | ||
|---|---|---|---|---|---|
| Shower, ≥1 time/day | 56 (54.9) | 130 (59.9) | 0.469 | 0.96 (0.57–1.64) | |
| Public bath | 63 (61.8) | 119 (54.8) | 0.296 | 1.76 (1.04–3.04) | |
| ≥1 time/week | 36 (35.3) | 42 (19.4) | 0.003 | 2.84 (1.58–5.17) | |
| Hot tub | 46 (45.1) | 85 (39.2) | 0.378 | 1.69 (0.99–2.91) | |
| ≥1 time/week | 24 (23.5) | 35 (16.1) | 0.152 | 2.17 (1.13–4.17) | |
| Wet sauna | 41 (40.2) | 73 (33.6) | 0.310 | 1.76 (1.02–3.05) | |
| ≥1 time/week | 15 (14.7) | 24 (11.1) | 0.457 | 1.89 (0.87–4.04) | |
| Swimming | 9 (8.8) | 17 (7.8) | 0.935 | 1.59 (0.61–3.93) | |
| ≥1 time/week | 8 (7.8) | 11 (5.1) | 0.470 | 2.27 (0.79–6.34) | |
| Duration, yr | 8.1±7.5 | 16.7±18.0 | 0.097 | ||
| Dishwashing | 90 (88.2) | 185 (85.3) | 0.585 | 1.05 (0.40–2.82) | |
| ≥1 time/day | 80 (88.9) | 164 (88.6) | >0.999 | 0.67 (0.21–2.11) | |
| Humidifier at home | 17 (16.7) | 31 (14.3) | 0.699 | 1.16 (0.57–2.29) | |
| ≥1 time/week | 15 (14.7) | 24 (11.1) | 0.457 | 1.34 (0.63–2.80) | |
CI, confidence interval; NTM-PD, nontuberculous mycobacterial pulmonary disease; OR odds ratio.
Data are presented as numbers (%) or means±standard deviation.
*NTM-PD patients with M. intracellulare infection were excluded, †Adjusted for age, sex, body mass index, smoking, history of tuberculosis, and history of gastroesophageal reflux disease.