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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

From: Empirical treatment for TB in HIV: lessons from a cohort study of people living with HIV treated in Recife, Brazil

  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