Table 1. Demographics and clinical characteristics at study entry one year after ART initiation and over 25,581 person-years of follow-up among 7183 patients who initiated antiretroviral therapy between January 1, 1998 and December 31, 2009 and survived for at least one year at 8 US clinical sites, followed for death up to 5 years.

Characteristics	Study entry N = 7183 patients		Retained in care n = 17897 person-years	Lost to clinic n = 7684 person-years
	n	%	%	%
Male sex	5817	82	81	81
Black race	2830	39	40	39
Hispanic ethnicity	888	12	12	12
Injection drug user	1156	16	16	18
MSM	4092	57	56	55
Prior ARV use	460	6	7	8
AIDS	2279	32	38	– a
CD4 cell count
<250	2605	36	23	– a
250–500	2726	38	38	– a
>500	1852	26	39	– a
Suppressed viral loadb	1909	73	79	– a

ARV, antiretroviral; IQR, interquartile range; MSM, men who have sex with men; ART, antiretroviral therapy; AIDS, acquired immunodeficiency syndrome; VL, viral load.

^aUnavailable.

^b<500 copies/ML.