Manlove Jennifer, Terry-Humen Elizabeth
Child Trends, 4301 Connecticut Avenue, NW, Suite 100, Washington, DC 20008, USA.
J Sex Res. 2007 Feb;44(1):3-16. doi: 10.1080/00224490709336788.
This study used the 1995 National Survey of Family Growth (NSFG) to assess whether characteristics of females' sexual partners, relationships, and choice of contraceptive methods were associated with contraceptive use patterns within their first sexual relationship. White, black, and Hispanic females under age 25 (N=915) provided retrospective information on sexual activity and contraceptive use for first sexual relationships that occurred between 1991 and 1995. Females with older sexual partners and with same race/ethnicity partners (among Hispanics) had reduced odds of ever using contraception and/or uninterrupted use. Longer sexual relationships were associated with higher odds of ever using contraception but lower odds of uninterrupted use. Females who were older at first sex, who used hormonal methods (among whites), or who switched to more effective methods during their first sexual relationships had higher odds of ever using contraception and/or uninterrupted use. In contrast, switching to less effective methods during a first sexual relationship was associated with reduced odds of uninterrupted use.
本研究利用1995年全国家庭成长调查（NSFG）来评估女性性伴侣的特征、关系以及避孕方法的选择是否与她们首次性行为中的避孕使用模式相关。25岁以下的白人、黑人及西班牙裔女性（N = 915）提供了关于1991年至1995年间首次性行为的性活动和避孕使用情况的回顾性信息。性伴侣年龄较大以及与同种族/族裔伴侣（西班牙裔中）的女性，使用过避孕措施和/或持续使用避孕措施的几率较低。较长的性关系与使用过避孕措施的较高几率相关，但与持续使用避孕措施的较低几率相关。首次性行为时年龄较大、使用激素避孕方法（白人中）或在首次性行为期间改用更有效的避孕方法的女性，使用过避孕措施和/或持续使用避孕措施的几率较高。相比之下，在首次性行为期间改用效果较差的避孕方法与持续使用避孕措施的几率降低相关。
