Table 2 Frequency distribution and bivariate Cox regression analysis of the association between general health, variables related to HIV and TB with death of PLHIV complaining of cough, Recife, 2010
N (%) | HR (CI 95%) | P value | Proportionality test | |
|---|---|---|---|---|
p value | ||||
General health variables | ||||
BMI | ||||
18.5 to 24.9 kg/m2 | 483 (62.4) | 1.0 | ||
< 18.5 kg/m2 | 85 (11.0) | 2.0 (1.1 – 3.4) | 0.015 | 0.2341 |
≥ 25 kg/m2 | 206 (26.6) | 0.6 (0.3 – 1.0) | 0.056 | |
Anemia | ||||
No | 402 (54.6) | 1.0 | ||
Yes | 334 (45.4) | 5.6 (3.1 – 10.0) | 0.000 | 0.9383 |
Loss of weight reported at baseline | ||||
No | 422 (56.1) | 1.0 | ||
Yes | 330 (43.9) | 2.2 (1.4 - 3.4) | 0.000 | 0.3383 |
Variables related to HIV | ||||
HAART (baseline) | ||||
No | 214 (26.8) | 1.0 | ||
Yes | 585 (73.2) | 1.3 (0.8 - 2.1) | 0.299 | 0.0055 |
CD4 cell count (time varying) | ||||
≥ 200 | - | 1.0 | ||
< 200 | - | 9.1 (5.9 – 14.0) | 0.000 | 0.5200 |
Opportunistic disease reported at baseline | ||||
No | 405 (50.6) | 1.0 | ||
Yes | 395 (49.4) | 2.0 (1.3 – 3.0) | 0.001 | 0.1302 |
Variables related to tuberculosis | ||||
AFB sputum smear or M. Tb culture during follow-up | ||||
Not performed | 492 (61.5) | 1.0 | ||
Negative | 308 (38.5) | 1.7 (1.1 – 2.5) | 0.010 | 0.9815 |
Chest X-ray | ||||
Normal | 364 (45.5) | 1.0 | ||
Abnormal | 154 (19.3) | 4.0 (2.4 - 6.6) | 0.000 | |
Not performed | 282 (35.3) | 1.7 (1.0 - 2.9) | 0.045 | 0.0301 |
Empirical TB treatment during follow-up | ||||
No | 629 (78.6) | 1.0 | ||
Yes | 171 (21.4) | 7.3 (4.8 – 11.0) | 0.000 | 0.8524 |
History of previous TB treatment | ||||
No | 618 (77.3) | 1.0 | ||
Yes | 182 (22.7) | 1.9 (1.2 - 2.9) | 0.003 | 0.6722 |