Table 2. Relative hazard (HR) of death according with HIV status by different Cox regression models in n = 909 NHL.

	HR of HIV+ vs. HIV- (95% CI)	p-value
Model A
Unadjusted	1.57 (1.24, 1.99)	< .001
Model B
Adjusted for age, gender and calendar year of diagnosis	2.01 (1.51, 2.67)	< .001
Model C
Adjusted for use of rituximab and standard IPI score	1.44 (1.13, 1.83)	0.01
Model D
Adjusted for gender, calendar year of diagnosis, use of rituximab and standard IPI score	1.26 (0.97, 1.63)	0.08
Model E
Adjusted for age, gender, calendar year of diagnosis, use of rituximab and age-adjusted IPI score	1.69 (1.26, 2.26)	<0.01