TABLE 2.
Potential factors associated with active tuberculosis in the study populationa
| Variable | P | OR (95% CI) | Adj P | Adj OR (95% CI) |
|---|---|---|---|---|
| Age | 0.007 | 0.003 | 1.059 (1.020–1.099) | |
| BMI (kg/m2) | ||||
| <18.5 | 0.017 | 2.573 (1.215–5.239) | 0.036 | 2.320 (1.057–5.089) |
| ≥18.5 to <24 | REF | REF | ||
| ≥24 to <28 | 0.059 | 0.590 (0.355–1.003) | 0.054 | 0.583 (0.336–1.010) |
| ≥28 | 0.390 | 0.613 (0.251–1.579) | 0.513 | 0.714 (0.260–1.961) |
| Silicosis categoriesb | ||||
| 0 | REF | |||
| 1 | 0.794 | 0.89 (0.318–2.535) | ||
| 2 | 0.792 | 0.83 (0.297–2.218) | ||
| 3 | 0.314 | 1.699 (0.725–3.978) | ||
| Education | ||||
| Illiteracy | REF | |||
| Primary school | 0.255 | 1.365 (0.809–2.262) | ||
| Middle school or higher | 0.569 | 0.74 (0.329–1.624) | ||
| Main job | ||||
| Quarry | 0.023 | 0.335 (0.151–0.824) | 0.217 | 0.567 (0.230–1.396) |
| Tunnel | 0.239 | 0.464 (0.144–1.453) | 0.258 | 0.478 (0.133–1.718) |
| Othersc | REF | REF | ||
| Quit working | 0.365 | 1.744 (0.516–5.893) | ||
| Cigarette smoking status | ||||
| Smoker | 0.665 | 0.854 (0.494–1.480) | ||
| Ex-smoker | 0.269 | 0.728 (0.424–1.242) | ||
| Never smoke | REF | |||
| Drinking | ||||
| Drinker | 0.182 | 1.427 (0.888–2.296) | ||
| Abstainer | 0.499 | 1.24 (0.627–2.322) | ||
| Never drink | REF | |||
| Contact of TB patients | <0.001 | 4.529 (2.150–9.524) | <0.001 | 4.329 (1.992–9.434) |
| BCG scar | <0.001 | 0.320 (0.190–0.540) | 0.034 | 0.541 (0.307–0.954) |
| Manifestations | ||||
| Cough | 0.083 | 1.527 (0.945–2.470) | ||
| Dyspnea | 0.251 | 1.291 (0.834–2) | ||
| Chest pain | 0.658 | 0.87 (0.47–1.611) | ||
| Wheeze | 0.005 | 1.88 (1.201–2.943) | 0.190 | 1.382 (0.852–2.242) |
| Fever | 0.002 | 3.625 (1.504–8.736) | 0.153 | 1.952 (0.781–4.882) |
| Wt loss | 0.008 | 2.365 (1.233–4.536) | 0.376 | 1.399 (0.666–2.939) |
| Night sweat | 0.125 | 1.679 (0.861–3.272) | ||
| Laboratory examination | ||||
| WBC (×109/L) | 0.133 | |||
| Ly (×109/L) | <0.001 | |||
| Ne (%) | 0.002 |
a
Data are presented as numbers of patients (%) or median values (IQR) unless noted otherwise in column 1. BMI, body mass index; BCG, bacillus Calmette-Guérin; WBC, white blood cell; Ly, lymphocyte; Ne, neutrophil; REF, reference. Significant values are indicated in boldface.
b
Silicosis categories were determined according to the 2011 revised edition of the ILO Guidelines for the Use of the ILO International Classification of Radiographs of Pneumoconioses.
c
That is, including surface drillers/stone-splitters/drillers in the construction trade or quarries, plasterers, etc.