Table 1.

Estimated HIV incidence, 50 U.S. states and the District of Columbia

	Stratified Extrapolation Approach										Extended Back-calculation Approach
	22 Statesa						50 States + DC				50 States + DC
	BED Testedb		2006 Diagnosesc		2006 Incidence		2006 Incidence				Incidence per year, 2003–2006
	No.	%	No.	%	No.	%	No.	%	95% CId		No.	%	95% CId
Total	6864		39400		40800		56300		48200	64500	55400		50000	60800
Sex
Male	4892	71	28900	73	29300	72	41400	73	35100	47700	42000	76	37400	46600
Female	1972	29	10600	27	11500	28	15000	27	12600	17300	13400	24	11000	15800
Race/ethnicitye
White	1707	25	11400	29	13100	33	19600	35	16400	22800	17700	32	14700	20700
Black	3825	56	20000	51	19600	49	24900	45	21100	28700	27800	50	24200	31400
Hispanic	1190	17	7000	18	6800	17	9700	17	7900	11600	8600	16	6200	11000
Asian/Pacific Islander	78	1	440	1	590	1	1200	2	490	1900	1000	2	200	1800
American Indian/ Alaska Native	21	0	130	0	180	0	290	1	60	500	300	<1	50	700
Age, years
13–29	2790	41	13100	33	14100	35	19200	34	16300	22200	21200	38	17000	25400
30–39	1892	28	12100	31	12500	31	17400	31	14600	20200	16800	30	13600	20000
40–49	1539	22	9800	25	9900	24	13900	25	11700	16100	12300	22	9100	15500
50–99	643	9	4400	11	4300	11	5800	10	4600	7100	5100	9	2900	7300
Transmission categoryf
MSM	3582	52	18400	48	20100	51	28700	53	24300	33100	31200	56	25400	37000
IDU	749	11	5600	15	4900	12	6600	12	5300	7900	5900	11	3500	8300
MSM/IDU	182	3	1200	3	1400	3	2100	4	1500	2700	1600	3	400	2800
Heterosexual	2328	34	13100	34	13100	33	16800	31	14200	19400	16400	30	12600	20200

^aAlabama, Arizona, Colorado, Connecticut, Florida, Georgia, Illinois, Indiana, Louisiana, Michigan, Mississippi, Missouri, New Jersey, New York, North Carolina, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, Washington

^bThe numbers for “BED tested” do not count cases who were diagnosed with AIDS at or within 6 months after HIV diagnosis and they were risk redistributed but not adjusted for reporting delay.

^cThe numbers for 2006 diagnoses were adjusted for reporting delay and risk redistribution.

^dCI, confidence interval. The confidence intervals reflect model uncertainty but cannot be used to compare the models.

^eRace and transmission category subgroup numbers may not add up to the overall total because cases with unknown race or unknown transmission categories are excluded. However, percents are adjusted for the exclusion so they add up to 100%.

^fMSM, men who have sex with men; IDU, injection drug users.