Bankole A, Darroch J E, Singh S
The Alan Guttmacher Institute, New York, USA.
Fam Plann Perspect. 1999 Nov-Dec;31(6):264-71.
Although overall condom use has increased substantially over the past decade, information is needed on whether dual method use has also become more common. In addition, there is little information on which characteristics of women influence condom use and dual method use, and on whether these characteristics have changed over time.
Data from the 1988 and 1995 National Surveys of Family Growth are examined to evaluate trends in condom use--either use alone or use with another highly effective method (dual method use). Logistic and multinomial regression analyses are presented to analyze the influence of women's characteristics on condom use.
Current condom use rose significantly between 1988 and 1995, from 13% to 19% of all women who had had sex in the past three months. Dual method use increased from 1% in 1988 to 3% in 1995, still a very low level. In both years, current condom use was higher among women younger than 20 (32-34% in 1995) than among those aged 30 or older (less than 20% in 1995). Likewise, current condom use was most common among never-married women who were not cohabiting in both 1988 (20%) and in 1995 (34%). Multivariate analyses showed that women in the early stage of a relationship (six months or less in duration) were much more likely than those in a long-standing relationship (five years or more in length) to use the condom (odds ratio, 1.5). In both 1988 and 1995, younger women and better educated women were more likely to be currently using the condom than were older or less-educated women. For example, in 1995, women younger than 18 were 1.8 times as likely as 40-44-year-olds to be using condoms, and college graduates were 1.5 times as likely as high school graduates to do so. Further, women who were not in a union and either had never been married or were formerly married were more likely to be current condom users in 1995 than were married women (odds ratios, 1.5-1.9). Poor women were less likely than higher income women to be condom users in 1995 (odds ratios, 0.7-0.8), but poverty had made little difference in 1988. Groups likely to be dual method users were those also likely to be at greater risk of sexually transmitted disease: women in a union of less than six months duration (2.8), women younger than 20 (4.6-6.8), unmarried women (2.8-7.5) and women with two or more partners in the past three months (1.7).
While the increase in condom use, especially among unmarried and adolescent women, is encouraging, condom use overall is substantially less than that needed to protect women and men against sexually transmitted diseases (including HIV). Moreover, steps need to be taken to understand why levels of dual method use are low and how they may be increased.
尽管在过去十年中避孕套的总体使用量大幅增加,但仍需了解双重方法使用是否也变得更加普遍。此外,关于哪些女性特征会影响避孕套使用和双重方法使用,以及这些特征是否随时间发生变化的信息很少。
研究1988年和1995年全国家庭生育调查的数据,以评估避孕套使用趋势——单独使用或与另一种高效方法联合使用(双重方法使用)。进行逻辑回归和多项回归分析,以分析女性特征对避孕套使用的影响。
1988年至1995年期间,当前避孕套使用率显著上升,在过去三个月内有过性行为的所有女性中,使用率从13%升至19%。双重方法使用率从1988年的1%增至1995年的3%,仍处于非常低的水平。在这两年中,20岁以下女性的当前避孕套使用率(1995年为32%-34%)高于30岁及以上女性(1995年低于20%)。同样,在1988年(20%)和1995年(34%),当前避孕套使用在从未结婚且未同居的女性中最为常见。多变量分析表明,处于恋爱关系早期(持续时间六个月或更短)的女性比处于长期恋爱关系(持续时间五年或更长)的女性更有可能使用避孕套(优势比为1.5)。在1988年和1995年,年轻女性和受教育程度较高的女性比年长或受教育程度较低的女性更有可能当前正在使用避孕套。例如,1995年,18岁以下女性使用避孕套的可能性是40-44岁女性的1.8倍,大学毕业生使用避孕套的可能性是高中毕业生的1.5倍。此外,1995年,未处于婚姻关系且从未结婚或曾结婚的女性比已婚女性更有可能当前是避孕套使用者(优势比为1.5-1.9)。1995年,贫困女性比高收入女性更不可能是避孕套使用者(优势比为0.7-0.8),但在1988年贫困因素影响不大。可能使用双重方法的人群也是那些感染性传播疾病风险可能更高的人群:处于持续时间不到六个月的婚姻关系中的女性(2.8)、20岁以下女性(4.6-6.8)、未婚女性(2.8-7.5)以及在过去三个月内有两个或更多性伴侣的女性(1.7)。
虽然避孕套使用的增加,尤其是在未婚和青少年女性中的增加令人鼓舞,但总体避孕套使用量仍远低于保护男性和女性免受性传播疾病(包括艾滋病毒)所需的水平。此外,需要采取措施了解双重方法使用率低的原因以及如何提高使用率。