Table 1.

Follow-Up Contributed by Individuals With Acquired Immunodeficiency Syndrome (AIDS) or With Human Immunodeficiency Virus (HIV) Infection in the Absence of AIDS

	All Participating Registriesa		Registries With Prospective HIV Datab
	Individuals with AIDS		Individuals with HIV but not AIDS		Individuals With AIDS
Variable	Person-Years	%	Person-Years	%	Person-Years	%
Sex
Males	1,724,200	79.7	416,586	70.0	95,219	69.0
Females	438,051	20.3	178,242	30.0	42,731	31.0
Attained age, y
0–29	196,300	9.1	107,581	18.1	13,918	10.1
30–39	808,503	37.4	208,312	35.0	46,278	33.5
40–49	797,085	36.9	191,856	32.3	53,968	39.1
50–59	281,434	13.0	69,248	11.6	19,347	14.0
≥60	78,929	3.7	17,831	3.0	4439.0	3.2
Race/ethnicity
Non-Hispanic white	839,409	38.8	201,111	33.8	39,102	28.3
Non-Hispanic black	887,996	41.1	290,627	48.9	72,463	52.5
Hispanic	434,846	20.1	103,090	17.3	26,384	19.1
HIV transmission risk group
Non-IDU MSM	965,669	44.7	211,373	35.5	43,794	31.7
IDU	504,988	23.4	114,626	19.3	38,729	28.1
IDU-MSM	142,052	6.6	31,891	5.4	10,069	7.3
Hemophiliac	7887	0.4	1137	0.2	415.0	0.3
Heterosexual	295,835	13.7	111,297	18.7	27,771	20.1
Other/unknown	245,820	11.4	124,505	20.9	17,171	12.4
Attained calendar year: ART era
1980–1989: Pre-ART era	61,315	2.8	170	0	75.0	0.1
1990–1995: Monotherapy/dual therapy era	427,123	19.8	46,218	7.8	5295.0	3.8
1996–2000: Early HAART era	826,484	38.2	136,631	23.0	35,384	25.7
2001–2009: Recent HAART era	847,329	39.2	411,808	69.2	97,195	70.5

Abbreviations: ART, antiretroviral therapy; HAART, highly active antiretroviral therapy; IDU, injection drug users; MSM, men who have sex with men.

^aFollow-up was restricted to 4 to 120 months after AIDS onset.

^bFollow-up was restricted to individuals who were reported initially with HIV infection but without AIDS. Person-time is categorized according to whether the individual remained without AIDS or had developed AIDS. Person-time in individuals with AIDS was restricted to the 4 to 120 months after AIDS onset.