Table 2.

Univariate analysis*

Variable	HR (95% CI)
Adherence to HAART ≥90%	0.28 (0.17 to 0.47)
CD4 count <200 cells/µL	7.35 (3.45 to 15.62)
Alcohol or drug use	5.91 (3.51 to 9.96)
Detectable HIV viral load (copies/mL)	4.26 (2.41 to 7.54)
AIDS	2.63 (1.59 to 4.36)
HIV transmission mode	0.40 (0.24 to 0.68)
Number of co-morbilities	1.33 (1.11 to 1.60)
Hospital admissions the year before	14.70 (4.49 to 48.10)
Number of co-medications	1.42 (1.26 to 1.60)

*Only variables with a significant association with risk admission are included.