Table 3. Characteristics of notified nontuberculous mycobacterium cases treated with anti-tuberculosis drugs compared with those not treated.
| Total | Not Treated | Treated | Adjusted odds ratio (95% CI) | |
|---|---|---|---|---|
| Total | 890(100.0%) | 187(21.0%) | 703(79.0%) | |
| Sex | ||||
| Male | 495(55.6%) | 94(19.2%) | 400(80.8%) | 1.35 (0.96–1.89) |
| Female | 395(44.4%) | 92(23.3%) | 303(76.7%) | Ref |
| Age(years) | ||||
| ≤44 | 90(10.1%) | 14(15.6%) | 76(84.4%) | 2.12 (1.11–4.06) |
| 45–64 | 236(26.5%) | 43(18.2%) | 193(81.8%) | 1.44 (0.94–2.21) |
| 65–74 | 190(21.4%) | 48(25.3%) | 142(74.7%) | 0.92 (0.61–1.41) |
| ≥75 | 374(42.0%) | 82(21.9%) | 292(78.1%) | Ref |
| Frequency of smear positive | ||||
| 0 | 392(44.0%) | 104(26.5%) | 288(73.5%) | Ref |
| 1 | 267(30.0%) | 51(19.1%) | 216(80.9%) | 1.61 (1.09–2.40) |
| 2 | 110(12.4%) | 18(16.4%) | 92(83.6%) | 2.19 (1.19–4.03) |
| 3 | 121(13.6%) | 14(11.6%) | 107(88.4%) | 2.99 (1.51–5.89) |
| Frequency of culture positive | ||||
| 1 | 506(56.8%) | 116(22.9%) | 390(77.1%) | Ref |
| 2 | 175(19.7%) | 40(22.9%) | 135(77.1%) | 0.86 (0.55–1.34) |
| 3 | 209(23.5%) | 31(14.8%) | 178(85.2%) | 1.18 (0.71–1.95) |
| Type of case | ||||
| New | 700(78.6%) | 144(20.6%) | 556(79.4%) | Ref |
| Previously treated | 190(21.4%) | 43(22.6%) | 147(77.4%) | 0.79 (0.53–1.18) |
| NTM Species | ||||
| No speciation | 390(43.8%) | 66(16.9%) | 324(83.1%) | 2.17 (1.45–3.24) |
| M. avium complex | 162(18.2%) | 31(19.1%) | 131(80.9%) | 2.10 (1.27–3.48) |
| Rapidly growing | 223(25.1%) | 66(29.5%) | 157(70.5%) | Ref |
| M. kansasii | 49(5.5%) | 13(26.5%) | 36(73.5%) | 1.30 (0.63–2.68) |
| Others | 63(7.1%) | 11(17.5%) | 52(82.5%) | 2.60 (1.25–5.40) |