Smith T W
National Opinion Research Center, University of Chicago.
Fam Plann Perspect. 1991 May-Jun;23(3):102-7.
Questions on sexual behavior that were added to the National Opinion Research Center's 1988 and 1989 General Social Surveys reveal that 97 percent of adult Americans have had intercourse since age 18. Respondents report having an average of about 1.2 sexual partners during the year preceding the survey and nearly 7.2 partners since age 18; men claimed to have had considerably more partners than did women. About one-fifth of adult Americans had no partners during the previous year. Moreover, over a year's time, only 1.5 percent of married people reported having had a sexual partner other than their spouse. On average, adults report engaging in intercourse 57 times per year. About two percent of sexually active adults reported being exclusively homosexual or bisexual during the year preceding the survey, and 5-6 percent have been exclusively homosexual or bisexual since age 18. Seven percent of adults are at relatively high current risk of contracting AIDS--three percent because they have had multiple partners, three percent because they have had unfamiliar partners and one percent because of their sexual orientation. However, 33 percent have engaged in relatively risky behavior at some time since age 18.
添加到美国国家民意研究中心1988年和1989年综合社会调查中的关于性行为的问题显示，97%的美国成年人自18岁起就有过性行为。受访者报告称，在调查前一年平均约有1.2个性伴侣，自18岁起近7.2个；男性声称拥有的伴侣比女性多得多。约五分之一的美国成年人在前一年没有伴侣。此外，在一年时间里，只有1.5%的已婚人士报告称有过配偶以外的性伴侣。成年人平均每年报告有性行为57次。约2%的性活跃成年人在调查前一年称自己完全是同性恋或双性恋，自18岁起有5%至6%的人完全是同性恋或双性恋。7%的成年人目前感染艾滋病的风险相对较高——3%是因为他们有多个性伴侣，3%是因为他们有不熟悉的性伴侣，1%是因为他们的性取向。然而，33%的人自18岁起曾在某些时候有过相对危险的行为。
