Table 1.

Characteristics of patients diagnosed with HIV infection within 6 months before study entry with available CD4 count data* by study period during which HIV diagnosis occurred, the HIV Outpatient Study, 2000–2009.

	2000-2001 (n = 213)	2002-2003 (n = 224)	2004-2005 (n = 207)	2006-2007 (n = 145)	2008-2009 (n = 147)	P value for trend†	All years (n = 936)
Males, %	75	71	81	81	76	0.21	77
Age, median years (IQR)	37 (30–45)	38 (30–45)	39 (31–46)	36 (28–46)	36 (28–46)	0.50	38 (30–46)
Race/ethnicity, %
Non-Hispanic white	44	39	47	48	36	0.67	43
Non-Hispanic black	37	44	36	34	44	0.83	39
Hispanic	15	13	14	14	18	0.59	15
Other or unknown	4	3	3	4	3	0.65	3
HIV infection risk group, %
Men who have sex with men (MSM)	50	48	57	69	49	0.08	54
High-risk heterosexual	39	41	32	21	44	0.26	36
Injection drug use (IDU, including MSM IDU)	6	6	6	3	1	0.02	5
Other or unknown	5	6	5	6	7	0.54	6
Medical insurer, %
Privately insured	57	67	67	70	58	0.51	64
Publically insured	34	29	29	24	33	0.37	30
Other or unknown	9	4	3	6	10	0.70	6
Type of facility, %
Public	28	46	42	28	49	0.03	39
Private	72	54	58	72	51	0.03	61

*For inclusion in this analysis, patients must have had a CD4 cell count measured within 1 month prior to or up to 3 months after the date of HIV diagnosis while remaining antiretroviral-naïve.

^†By Cochran-Armitage test for proportions (%), and by Jonckheere-Terpstra nonparametric test for continuous variables.