TABLE 3—

Comparisons of Add Health HIV Prevalence Estimates With Estimates From Other Data Sources

		Back Calculation: 1993		CDC Surveillance: 2001
	Add Health: 2001–2002 (19–24-Year-Oldsa) (95% Confidence Interval)	18–22-Year-Olds	23–27-Year-Olds	20–24-Year-Olds	20–59-Year-Olds	NHANES: 1988–1994 (18–59-Year-Olds)	NHANES: 1999–2002 (18–49-Year-Olds)
No. of cases
Total	21 387 (8 688, 37 532)	33 100	116 000	36 252	537 106	461 000	540 060
Male	11 954 (2 803, 24 471)	22 100	88 500	23 494	413 153	368 000	402 002
Female	9 432 (2 787, 17 631)	11 000	27 500	12 758	123 953	94 000	138 058
Non-Hispanic Black	17 275 (5 810, 30 477)	16 000	49 200	18 179	238 193	189 000	319 387
Other race/ethnicity	4 112 (0, 11 724)	17 100	66 800	18 073	298 913	273 000	220 672
Prevalence per 1000
Total	0.97 (0.40, 1.70)	1.98	6.54	. . .	. . .	3.20	4.26
Male	1.06 (0.25, 2.19)	2.60	9.92	. . .	. . .	5.20	6.40
Female	0.87 (0.26, 1.63)	1.34	3.12	. . .	. . .	1.30	2.16
Non-Hispanic Black	4.92 (1.84, 8.70)	6.42	19.99	. . .	. . .	11.00	21.37
Other race/ethnicity	0.22 (0.00, 0.64)	1.20	4.37	. . .	. . .	2.11	1.97

Note. CDC = Centers for Disease Control and Prevention; NHANES = National Health and Nutrition Examination Survey.

^aThe full sample age range was 18 to 28 years, but 93.2% of the participants were 19 to 24 years of age.