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Table 1 Bivariate analysis and final Cox proportional hazards model for predictors of survival in AIDS patients

From: Survival of AIDS patients in Sao Paulo-Brazil in the pre- and post-HAART eras: a cohort study

Characteristics AIDS Deaths       
(n = 6,594) (n = 2,936) Crude HR 95% CI p-value Adjusted HR 95% CI p-value
Study period      < 0.001    < 0.001
1997-2003 3130 653 1 -   1 -  
1994-1996 1501 731 2.4 2.2-2.7   2.0 1.8-2.2  
1988-1993 1963 1552 6.9 6.3-7.5   3.2 2.8-3.5  
Gender      < 0.001    
Female 1526 517 1 -   - -  
Male 5068 2419 1.6 1.4-1.8   - -  
Age ( &)      < 0.001    0.002
13-29 2099 953 1 -   1 -  
30-49 4126 1784 1.0 0.9-1.1   1.4 1.2-1.5  
50 or more 369 199 1.4 1.2-1.6   2.0 1.7--2.3  
Race/skin color      < 0.001    
Black/brown 1348 452 1 -   - -  
White 5157 2456 1.6 1.5-1.8   - -  
Exposure category ( &)      < 0.001    < 0.001
Heterosexuals 2310 735 1 -   1 -  
MSM 2698 1215 1.5 1.3-1.6   1.1 1.1-1.2  
IDU 1347 826 2.6 2.4-2.9   1.5 1.3-1.6  
Schooling ( &)      < 0.001    0.0004
>8 years 3316 1119 1 -   1 -  
8 years or less 2779 1514 2.0 1.8-2.1   1.4 1.3-1.5  
None 78 48 2.8 2.1-3.7   2.1 1.6-2.8  
CD4+ count (#)      < 0.001    < 0.001
>500 cells/mm3 565 56 1 -   1 -  
350-500cells/mm3 567 81 1.4 1.0-1.9   1.2 1.1-1.2  
<350 cells/mm3 3040 733 2.5 1.9-3.2   1.3 1.2-1.3  
  1. HR: hazard ratio; Crude HR: crude hazard ratio; adjusted HR: adjusted hazard ratio.
  2. (#)CD4+ count at AIDS diagnosis; (& ) Baseline data.