Table 1 HIV/AIDS indicator trends among MSM, San Francisco, 1998–2007

Source	Indicator	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	p Level
AHP	HIV incidence (STARHS), % per year	1.9	4.1	2.9	2.8	2.8	1.7	3.2	2.2	2.4	2.0	0.27
STI	HIV incidence (STARHS), % per year	4.8	4.9	3.4	3.2	4.5	3.9	4.2	4.1	2.7	4.6	0.40
HARS	New HIV diagnoses*, N					426	533	590	454	396		na†
HARS	Deaths among MSM with HIV/AIDS, N						228	228	175	153		na†
HARS	MSM living with AIDS, N	6433	6613	6762	6906	7057	7260	7415	7535	7705	7809	na†
HARS	MSM living with HIV non-AIDS, N					4673	4860	5110	5237	5290	5392	na†
HARS	ART use, % of MSM with AIDS	88	89	90	90	90	91	91	91	90	89	na†
HARS	New STI diagnoses, MSM with AIDS			164	175	278	295	316	324	328		na†
STI	Male rectal gonorrhoea	271	278	367	406	542	517	600	694	827	690	na†
STI	Primary and secondary syphilis in MSM	6	25	47	140	330	373	360	232	244	195	na†
SAP	Any UAI in MSM, %	31	32	36	38	33	39	35	39	44	46	<0.001
SAP	UAI with unknown serostatus partner, HIV+, %	22	25	26	31	28	28	21				0.48
SAP	Potentially discordant UAI, HIV+, %								26	28	32	0.12
SAP	UAI with unknown serostatus partner, HIV−, %	12	15	17	20	16	8	4				0.001
SAP	Potentially discordant UAI, HIV−, %								8	13	18	0.001
SAP	Potentially discordant insertive UAI, HIV+, %								11	13	17	0.06
SAP	Potentially discordant receptive UAI, HIV−, %								4	7	7	0.07
AHP	Any insertive UAI, %				41	41	46	42	44	48		<0.001
AHP	Any receptive UAI, %				33	33	36	34	35	38		<0.001
AHP	Insertive UAI with known HIV+, %				8	6	8	8	8	8		0.69
AHP	Receptive UAI with known HIV+, %				5	3	4	4	5	5		0.12
STI	Any insertive UAI, %				46	48	46	45	47	50		0.03
STI	Any receptive UAI, %				38	38	36	33	37	40		0.15
STI	Insertive UAI with known HIV+, %				11	12	13	5	7	10		0.20
STI	Receptive UAI with known HIV+, %				5	3	4	4	6	10		0.06

*Controlling for reporting delay of one year; †Test for trend not applicable for counts of all reported cases. 1996–9 includes all people living with AIDS; 2000–6, men who have sex with men (MSM) only. AHP, AIDS Health Project (anonymous HIV testing sites); ART, antiretroviral therapy; HARS, HIV/AIDS case registry; SAP, the STOP AIDS Project; STARHS, serological testing algorithm for recent HIV seroconversion; STI, municipal sexually transmitted infection clinic; UAI, unprotected anal intercourse.