Table 1.
Clinical and laboratory characteristics of the TB patients and HCs
| Characteristic | HC | LTBI | EPTB | PTB |
|---|---|---|---|---|
| Total no. | 90 | 13 | 18 | 55 |
| Sex (no. male/no. female) | 46/44 | 6/7 | 9/9 | 35/20 |
| Mean ± SD age (yr) | 54.6 ± 13.0 | 47.9 ± 9.8 | 50.9 ± 18.1 | 55.2 ± 20.9 |
| No. (%) with previous TB medication | ||||
| No | NDa | ND | 17 (94.4) | 44 (80) |
| Yes | ND | ND | 1 (5.5) | 11 (20) |
| No. (%) with positive sputum AFBb smear | ND | ND | 0 | 35 (63.6) |
| No. (%) with cavity on chest radiograph | ND | ND | 0 | 19 (34.5) |
| No. (%) with the following extent of pulmonary disease: | ||||
| Stage 1 (segmental disease) | ND | ND | 0 | 4 (7.3) |
| Stage 2 (lobar disease) | ND | ND | 0 | 13 (23.6) |
| Stage 3 (bi/trilobar disease) | ND | ND | 0 | 10 (18.2) |
| Stage 4 (bilateral disease) | ND | ND | 0 | 28 (50.9) |
| No. (%) with the following sites of EPTB: | ||||
| Lymph node | ND | ND | 6 (33.3) | 0 (0) |
| Bone and joint | ND | ND | 8 (33.3) | 4 (7.3) |
| Pericardium | ND | ND | 1 (5.6) | 1 (1.8) |
| Peritoneum | ND | ND | 1 (5.6) | 2 (3.6) |
| Pharynx | ND | ND | 1 (5.6) | 0 (0) |
| Pleura | ND | ND | 1 (5.6) | 0 (0) |
| Mean ± SD hemoglobin concn (mg/dl) | 14.0 ± 1.2 | 13.8 ± 1.4 | 11.6 ± 2.3 | 12.0 ± 1.7 |
| Mean ± SD leukocyte count (cells/μl) | 5,592 ± 1,457 | 6,885 ± 1,485 | 5,758 ± 2,046 | 7,669 ± 3,014 |
| Mean ± SD lymphocyte count (cells/μl) | 2,041 ± 719 | 2,102 ± 526 | 1,422 ± 590 | 1,389 ± 666 |
| Mean ± SD platelet count (103 cells/μl) | 243 ± 58 | 228 ± 43 | 242 ± 96 | 297 ± 124 |
| Mean ± SD CRPc concn (mg/dl) | ND | ND | 2.05 ± 2.38 | 5.21 ± 5.42 |
a
ND, not done.
b
AFB, acid-fast bacilli.
c
CRP, C-reactive protein.