Volume 17, Number 9—September 2011
Letter
Isoniazid-Resistant Tuberculosis, Taiwan, 2000–2010
Table
Factors associated with isoniazid resistance among Mycobacterium tuberculosis isolates, National Taiwan University Hospital, Taiwan, 2000–2010*
| Factor | No. infections | No. isoniazid- resistant infections | Resistance rate | OR (95% CI) |
|---|---|---|---|---|
| Patient age, y | ||||
| <14 | 42 | 2 | 4.76 | 0.32 (0.08–1.23) |
| 14 to <24 | 241 | 22 | 9.13 | 0.64 (0.42–1.07) |
| 24 to <34 | 342 | 36 | 10.53 | 0.75 (0.48–1.18) |
| 34 to <44 | 384 | 52 | 13.54 | Reference |
| 44 to <54 | 490 | 56 | 11.43 | 0.82 (0.55–1.23) |
| 54 to <64 | 609 | 70 | 11.49 | 0.83 (0.57–1.22) |
| 64 to <74 | 845 | 96 | 11.36 | 0.82 (0.57–1.17) |
| 74 to <84 | 986 | 85 | 8.62 | 0.60 (0.42–0.87) |
| 84 |
350 |
28 |
8.00 |
0.56 (0.34–0.90) |
| Patient sex | ||||
| F | 1,356 | 128 | 9.44 | 0.85 (0.69–1.06) |
| M |
2,933 |
319 |
10.88 |
Reference |
| Pulmonary tuberculosis | ||||
| No | 772 | 56 | 7.25 | 0.63 (0.47–0.84) |
| Yes | 3,517 | 391 | 11.12 | Reference |
*OR, odds ratio; CI, confidence interval.
