Table 1.
Baseline characteristics of the study population.
| Characteristics | TB (n = 100) | Non-TB (n = 43) | P value |
|---|---|---|---|
| Age, median(range), yrs | 22(20-30) | 21(20-26) | 0.02 |
| Male Gender | 98(98) | 43(100) | 0.87 |
| Smoking History | |||
| Non-smoker | 50(50.0) | 22(51.2) | 0.46 |
| Ex-smoker | 3(3.0) | 4(9.3) | |
| Current smoker | 47(47.0) | 17(39.5) | |
| BCG scar present | 70(70.0) | 32(74.4) | 0.59 |
| Sputum AFB smear | |||
| Negative | 99(99.0) | 39(90.7) | <0.05 |
| Non-productive | 1(1.0)* | 4(9.3)† | |
| Symptom present | |||
| Cough | 52(52.0) | 29(67.4) | 0.09 |
| Sputum | 39(39.0) | 28(65.1) | <0.01 |
| Hemoptysis | 10(10.0) | 8(18.6) | 0.15 |
| Peak BT(°C), mean ± SD | 37.1 ± 0.8 | 37.6 ± 1.1 | 0.01 |
| WBC(×103cells/uL), mean ± SD | 6.89 ± 1.85 | 8.33 ± 5.21 | 0.09 |
| CRP(mg/dL), mean ± SD | 2.02 ± 3.32 | 6.35 ± 8.98 | <0.01 |
| Final Diagnosis | |||
| Culture-positive pulmonary TB | 41(41.0) | ||
| Clinical pulmonary TB | 35(35.0) | ||
| Extrapulmonary TB | 24(24.0) | ||
| Pleural TB | 19(19.0) | ||
| Lymph node TB | 2(2.0) | ||
| Other site | 3(3.0) | ||
| Pneumonia | 30(69.8) | ||
| Paragonimiasis | 3(7.0) | ||
| Empyema | 2(4.7) | ||
| Other diagnoses | 8(18.6) |
Data are no.(%) of patients, unless otherwise indicated.
BCG, Bacille Calmette-Guerin; BT, body temperature; WBC, white blood cell; CRP, C-reactive protein; AFB, acid-fast bacilli; TB, tuberculosis
* Mycobacterium tuberculosis was isolated on bronchial washing fluid.
† Four subjects include two with reactive lymphadenopathy, one with malignant lymphoma and one with paragonimiasis.