Table 1.
Characteristics of participants according to history of post-TB
| Variables | Post-TB (n=610) | Non post-TB (n=8070) | P value |
| Male | 328 (53.8%) | 3945 (48.9%) | 0.022 |
| Age, years | 49.31 (15.21) | 39.49 (15.17) | <0.001 |
| City dweller | 256 (42.1%) | 2580 (32.1%) | <0.001 |
| Education level | |||
| Primary school and lower | 362 (59.4%) | 3512 (43.5%) | <0.001 |
| Middle and high school | 180 (29.5%) | 3225 (40.0%) | |
| College and higher | 68 (11.1%) | 1333 (16.5%) | |
| Smoking status | |||
| Never smoker | 405 (66.4%) | 5866 (72.7%) | <0.001 |
| Ever smoker | 205 (33.6%) | 2201 (27.3%) | |
| Comorbidities | |||
| Hypertension | 97 (16.3%) | 636 (8.0%) | <0.001 |
| Chronic cardiovascular disease | 11 (1.8%) | 66 (0.8%) | 0.022 |
| Diabetes mellitus | 14 (2.7%) | 128 (2.1%) | 0.303 |
| Dyslipidaemia | 70 (13.4%) | 478 (7.9%) | <0.001 |
| History of asthma | 32 (5.3%) | 118 (1.5%) | <0.001 |
| Respiratory symptoms | |||
| Frequent cough | 109 (18.0%) | 757 (9.5%) | <0.001 |
| Sputum | 110 (18.2%) | 750 (9.4%) | <0.001 |
| Recurrent wheezing | 54 (8.9%) | 310 (3.9%) | <0.001 |
| Dyspnoea in daily life | 198 (32.7%) | 1570 (19.6%) | <0.001 |
| At least one of the symptoms | 284 (46.8%) | 2259 (28.3%) | <0.001 |
| Lung function parameters | |||
| FVC post-BD, L | 3.57 (1.02) | 3.73 (0.96) | <0.001 |
| FVC post-BD % pred | 106.20 (25.55) | 104.19 (22.33) | 0.060 |
| FEV1 post-BD, L | 2.80 (0.91) | 3.07 (0.85) | <0.001 |
| FEV1 post-BD % pred | 100.55 (28.49) | 101.47 (23.60) | 0.437 |
| FEV1/FVC post-BD, % | 78.40 (12.18) | 82.38 (10.72) | <0.001 |
| MMEF post-BD % pred | 68.95 (35.07) | 78.90 (57.69) | <0.001 |
| FEF50% post-BD % pred | 83.52 (36.17) | 88.48 (31.06) | 0.001 |
| FEF75% post-BD % pred | 85.01 (58.02) | 92.33 (47.12) | 0.003 |
| Oxyhemoglobin saturation (SpO2), % | 91.39 (6.39) | 93.45 (5.25) | <0.0001 |
Data are expressed as number (%) or mean (SD).
FEF, forced expiratory flow; FEV1, forced expiratory volume in the first second; FVC, forced vital capacity; MMEF, maximum mid-expiratory flow; post-BD, post-bronchodilator.