Table 3.
Differences in EMB/INH/RIF resistance by age, race, and HIV status, by county DOT program type1
| Selective DOT county | Universal DOT county | |||||||
|---|---|---|---|---|---|---|---|---|
| (n = 1207) | (n = 514) | Interaction | ||||||
| Stratifying factor | No. Resistant | (%) | No. Resistant | (%) | OR | (95% CI) | p-value | p-value2 |
| Age (yrs) | 0.06 | |||||||
| <30 | 28 | (9) | 8 | (7) | 1.3 | (0.5, 2.9) | 0.58 | |
| 30 - 59 | 59 | (8) | 15 | (5) | 1.7 | (0.9, 3.1) | 0.08 | |
| 60+ | 8 | (5) | 2 | (2) | 2.1 | (0.4, 10.2) | 0.36 | |
| Race | 0.11 | |||||||
| Black | 41 | (8) | 6 | (4) | 2.1 | (0.9, 5.1) | 0.09 | |
| Hispanic | 20 | (6) | 10 | (8) | 0.7 | (0.3, 1.5) | 0.34 | |
| White | 8 | (4) | 3 | (2) | 1.4 | (0.3, 5.6) | 0.65 | |
| Asian/other | 26 | (18) | 6 | (8) | 2.8 | (1.1, 7.1) | 0.03 | |
| HIV status | 0.52 | |||||||
| Negative | 74 | (7) | 20 | (4) | 1.6 | (1.0, 2.7) | 0.07 | |
| Positive | 21 | (11) | 5 | (8) | 1.2 | (0.4, 3.6) | 0.68 | |
1Separate analyses were done for each level of each stratifying factor; e.g., among patients aged <30, 28 (9%) patients from selective DOT and 8 (7%) from universal DOT were resistant, with an OR of 1.3 associating increased resistance with selective DOT. Analyses were adjusted for age, race, and/or HIV status, as appropriate, depending on the stratification factor.
2Interaction between DOT program and the stratifying factor.