Table 3. Location and extent of abnormal opacities of the lung parenchyma on chest radiographs in relation to smoking in culture-positive pulmonary tuberculosis patients at three tertiary-referral hospitals in Taiwan, 2005–2010, stratified by diabetes.
| Non-smoker | Smoker | Multivariate | |||||
|---|---|---|---|---|---|---|---|
| No. | % | No. | % | AdjOR | 95% CI | ||
| Non-diabetic | 365 | 100 | 149 | 100 | |||
| Any opacity | 357 | 97.8 | 146 | 98.0 | 1.09 | 0.29 | 4.17 |
| Location | |||||||
| Upper field | 321 | 88.0 | 143 | 96.0 | 2.01 | 0.77 | 5.30 |
| Lower field | 228 | 62.5 | 106 | 71.1 | 1.57 | 0.98 | 2.50 |
| Right field | 299 | 81.9 | 133 | 89.3 | 1.76 | 0.93 | 3.36 |
| Left field | 262 | 71.8 | 121 | 81.2 | 1.51 | 0.89 | 2.54 |
| Bilateral field | 204 | 55.9 | 108 | 72.5 | 1.84 | 1.16 | 2.93 |
| Extent | |||||||
| Minimal | 157 | 43.0 | 42 | 28.2 | Base | ||
| Moderately-advanced | 149 | 40.8 | 69 | 46.3 | 1.48 | 0.90 | 2.42 |
| Far-advanced | 51 | 14.0 | 35 | 23.5 | 1.91 | 1.04 | 3.50 |
| Diabetic | 284 | 100 | 174 | 100 | |||
| Any opacity | 282 | 99.3 | 171 | 98.3 | 0.40 | 0.07 | 2.44 |
| Location | |||||||
| Upper field | 267 | 94.0 | 164 | 94.3 | 0.87 | 0.33 | 2.30 |
| Lower field | 209 | 73.6 | 133 | 76.4 | 0.98 | 0.59 | 1.61 |
| Right field | 235 | 82.8 | 142 | 81.6 | 0.88 | 0.50 | 1.56 |
| Left field | 222 | 78.2 | 137 | 78.7 | 0.77 | 0.45 | 1.32 |
| Bilateral field | 175 | 61.6 | 108 | 62.1 | 0.86 | 0.55 | 1.35 |
| Extent | |||||||
| Minimal | 84 | 29.6 | 38 | 21.8 | Base | ||
| Moderately-advanced | 149 | 52.5 | 90 | 51.7 | 1.02 | 0.60 | 1.73 |
| Far-advanced | 49 | 17.3 | 43 | 24.7 | 1.64 | 0.86 | 3.13 |
Note: No, number; CI, confidence interval; AdjOR, adjusted odds ratio, adjusted for sex and age group.