Table 4. Conditional analysis of pulmonary impairment after treatment for pulmonary tuberculosis.
| Variable | Condition | p | |
|---|---|---|---|
| Previous culture resulta | |||
| Positive | Negative | ||
| (n = 105) | (n = 90) | ||
| FVC, % of predictedb | 96.7 (22.9) | 106.0 (16.8) | 0.006 |
| FEV1, % of predictedb | 81.8 (24.9) | 96.6 (22.0) | < 0.001 |
| FEV1/VC ratiob | 67.9 (13.8) | 73.6 (12.5) | 0.002 |
| TLC, % of predictedb | 98.4 (19.4) | 103.8 (12.7) | 0.106 |
| Any impairmentc | 58 (55.2) | 30 (33.3) | 0.002 |
| Reduced pulmonary functionc | 39 (37.1) | 13 (14.4) | 0.004 |
| Number of episodes of pulmonary tuberculosis | |||
| Two or more | One | ||
| (n = 26) | (n = 188) | ||
| FVC, % of predictedb | 90.6 ± 28.9 | 100.9 ± 20.0 | 0.140 |
| FEV1, % of predictedb | 71.7 ± 27.9 | 89.2 ± 23.9 | 0.002 |
| FEV1/VC ratiob | 63.3 ± 12.8 | 71.2 ± 13.4 | 0.003 |
| TLC, % of predictedb | 92.3 ± 25.6 | 100.9 ± 16.2 | 0.12 |
| Any impairmentc | 20 (76.9) | 82 (43.6) | 0.001 |
| Reduced pulmonary functionc | 15 (57.7) | 45 (23.9) | < 0.001 |
| Smoking | |||
| Ever | Never | ||
| (n = 138) | (n = 76) | ||
| FVC, % of predictedb | 100.2 ± 20.6 | 98.7 ± 23.0 | 0.979 |
| FEV1, % of predictedb | 85.6 ± 23.7 | 89.7 ± 27.1 | 0.151 |
| FEV1/VC ratiob | 67.9 ± 13.3 | 74.6 ± 12.9 | < 0.001 |
| TLC, % of predictedb | 102.0 ± 16.0 | 96.0 ± 20.2 | 0.072 |
| Any impairmentc | 74 (53.6) | 28 (36.8) | 0.019 |
| Reduced pulmonary functionc | 43 (31.2) | 17 (22.4) | 0.171 |
a
Determined for only 195 of the 214 patients in the sample. bValues expressed as mean (SD). cValues expressed as n (%). dDefined as an FEV1 < LLN.