TABLE 1—

Studies Funded by the National Institutes of Health That Examined the Health of Lesbian, Gay, Bisexual, and Transgender Populations, by Subpopulation: 1989–2011

Content Area/Subpopulation	All NIH-Funded Studies (n = 127 798), %	All NIH-Funded LGBT Health–Related Studies (n = 628), %
LGBT health–related studies (n = 628)	0.5	100.0
Including those focusing on HIV/AIDS or other sexual health matters (n = 515)	0.4	82.0
Excluding those focusing on HIV/AIDS or other sexual health matters (n = 113)	0.1	18.0
LGBT health–related intervention studies (n = 202)	0.2	32.2
Including those focusing on HIV/AIDS or other sexual health matters (n = 181)	0.1	28.8
Excluding those focusing on HIV/AIDS or other sexual health matters (n = 21)	< 0.1	3.3
Studies involving sexual minority women
Total (n = 85)		13.5
Involving lesbians (n = 63)		10.0
Involving bisexual women (n = 41)		6.5
Involving women who have sex with women (n = 3)		0.5
Studies involving sexual minority men
Total studies (n = 541)		86.1
Involving gay men (n = 232)		36.9
Involving bisexual men (n = 93)		14.8
Involving men who have sex with men (n = 310)		49.4
Involving men who have sex with both men and women (n = 16)		2.5
Studies involving transgender persons
Total (n = 43)		6.8
Involving transgender women (n = 12)		1.9
Involving transgender men (n = 1)		0.2
Involving two-spirit persons (n = 3)		0.5
Studies involving persons aged < 18 y (n = 61)		9.7
Studies involving persons aged ≥ 50 y (n = 2)		0.3
Studies examining race/ethnicity (n = 197)		31.4
Studies involving populations outside United States (n = 76)		12.1

Note. LGBT = lesbian, gay, bisexual, and transgender; NIH = National Institutes of Health. Some studies involved ≥ 1 subpopulation, so numbers may sum to > 628 and > 100%.