Table 2.

Discrete time survival analysis comparing the two mental illness groups with those without mental illness on risk of discontinuing HAART.

Variablea	Category	Adjusted odds ratio	95% CI	Pc
Age	≤39	1.25	(1.12–1.39)	<0.001
	40–49	1.05	(0.94–1.16)	0.400
	≥50	1.00	Referent
Sex	Male	1.00	Referent
	Female	1.05	(0.96–1.14)	0.280
Race	White	1.00	Referent
	Hispanic/Other	0.89	(0.80–0.99)	0.035
	Black	0.95	(0.86–1.06)	0.37
Nadir CD4 cell count (cells/μl)	<50	0.87	(0.76–1.00)	0.046
	50–200	0.78	(0.68–0.89)	<0.001
	201–500	0.82	(0.72–0.94)	0.003
	>500	1.00	Referent
History of IDU	No	1.00	Referent
	Yes	1.22	(1.12–1.33)	<0.001
SMI versus NSMI	1st yearb	0.57	(0.47–0.69)	<0.001
	2nd year	0.68	(0.52–0.89)	0.005
	3rd year	0.77	(0.53–1.11)	0.161
	4th year	0.85	(0.48–1.49)	0.57
DD versus Non-MI	1st year	0.61	(0.54–0.69)	<0.001
	2nd year	0.87	(0.73–1.03)	0.110
	3rd year	1.03	(0.81–1.32)	0.79
	4th year	1.11	(0.75–1.65)	0.61

CI, confidence interval; DD, depressive disorder; DF, degree of freedom; IDU, injection drug use; MI, mental illness; NSMI, nonserious mental illness; SMI, serious mental illness.

^aModel adjusts for site – not shown.

^bDiagnostic group comparisons presented by consecutive year on HAART due to interaction between diagnostic group and consecutive year on HAART. Because interaction is in the model, main effects for diagnostic group and year are not presented.

^cP values are from Wald chi-square tests of regression coefficients with 1 DF.