Human sex ratio - Wikipedia - sex 1.00

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Watford Sexual Health Clinic - Sexual Health Hertfordshire sex 1.00


Men who had sexual partners of the same-sex or both sexes were at lower risk . sex partners (≥ to ), and only same-sex partners.

A total of 39% reported heterosexual intercourse and no same-sex genital contact. .. OR = , 95% CI = –; regret: OR = , 95% CI = – ).

patterns of heterosexual oral and anal sex among teenag- ers, including those who .. Any to same sex (ref). Sexual identity. Homosexual/bisexual.