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. Author manuscript; available in PMC: 2010 Aug 1.
Published in final edited form as: J Acquir Immune Defic Syndr. 2009 Aug 15;51(5):624–630. doi: 10.1097/QAI.0b013e3181a4ecf5

Table 4.

Models for the hazards of the subdistributions and specific-hazards of deaths due to AIDS- and to non-AIDS-related causes including baseline age (per 10 year increase), CD4 cell counts (per 50 cells increase), gender (reference: female) and risk group (IDU vs. other), and an interaction term between baseline age and log of time under observation. Baseline age treated as a time-dependent variable.

Outcome Variables aHR (95% CI) p
Deaths due to AIDS-related causes Baseline Age (10 years) 1 1.46 (1.15,1.85) <0.01
Baseline CD4 (50 cells) 0.87 (0.82,0.92) <0.01
Male gender 1.07 (0.71,1.59) 0.75
IDU 1.35 (0.42,4.31) 0.61
Deaths due to non-AIDS-related causes Baseline Age (10 years) 2 1.30 (0.94,1.80) 0.12
Baseline CD4 (50 cells) 0.90 (0.86,0.95) <0.01
Male gender 0.84 (0.56,1.26) 0.40
IDU 4.96 (2.34,10.52) <0.01
1

Negative interaction with time (p = 0.02)

2

Negative interaction with time (p = 0.77)

aHR: Adjusted hazard ratio