Table 2.

Unadjusted Analysis of Time to ProteaseInhibitor Initiation

Factor	HazardRatio	95% CI
CD4 cell count before elevated  viral load
<200*	1.00	—
200–500	2.38	1.59, 3.57
>500	8.33	2.63, 25.0
History of AIDS-defining diagnosis	0.24	0.15, 0.36
History of pneumocystis pneumonia	0.32	0.21, 0.49
Tenfold increase in initial elevated viral load	0.43	0.31, 0.59
Known to be HIV positive <6 years	1.05	0.75, 1.49
Female	1.30	0.76, 2.22
HIV risk factor
Unprotected homosexual male contact	0.77	0.50, 1.19
Injection drug use	2.08	1.05, 4.17
Heterosexual contact or transfusion	1.41	0.85, 2.33
History of anxiety	1.06	0.67, 1.61
History of depression	1.28	0.91, 1.79
Private insurance	1.31	0.93, 1.85
Number of viral load checks (total)†	0.86	0.80, 0.93
Number of infectious disease consultant visits†‡	1.15	0.60, 21.7
Number of RN and MD visits in past year†	0.94	0.91, 0.97
Low-volume physician (<4 patients with HIV)	1.15	0.78, 1.69
Faculty physician	0.88	0.59, 1.30
Involvement in clinical trial in  past year	0.70	0.48, 1.02

^*Referent group.

^†Per one unit increase.

^‡Time-varying covariate.