Table 4.

Means and SDs of men’s and women’s sexual orientation prevalence rates across 28 nations

Sexual orientation	Men	Women
Sexual identity
Heterosexual	90.0% (3.58)	90.7% (3.58)
Bisexual	5.1% (1.75)	7.2% (2.94)
Gay/Lesbian	4.9% (2.57)	2.1% (1.17)
Sexual attraction
Predominantly not attracted to the same sex	82.6% (4.48)	66.2% (6.85)
Moderately attracted to the same sex	10.2% (2.91)	27.3% (5.67)
Predominantly attracted to the same sex	7.2% (2.87)	6.5% (1.91)

For sexual attraction, the original score which is measured on a 7-point scale was transformed into 3 groups: “predominantly not sexually attracted to the same-sex” (scoring “1” and “2” on the same-sex attraction scales), “moderately sexually attracted to the same-sex” (scoring “3,” “4,” or “5” on the same-sex attraction scales), and “predominantly sexually attracted to the same-sex” (scoring “6” or “7” on the same-sex attraction scales)