Steiner M J, Glover L H, Bou-Saada I, Piedrahita C
Family Health International, Research Triangle Park, North Carolina 27709, USA.
Sex Transm Dis. 1998 Mar;25(3):139-43. doi: 10.1097/00007435-199803000-00006.
We evaluated whether offering a choice of barrier methods can increase overall barrier method use without decreasing condom use in women using oral contraceptives (OCs) for contraception.
We randomized 167 OC users at risk for sexually transmitted diseases (STDs) into two groups, one receiving male latex condoms only (Condom group), the other receiving both male latex condoms and nonoxynol-9 film (Choice group). All participants received similar hierarchical STD protection counseling. We assessed method use with daily diaries.
The Choice group protected a significantly higher percentage of their coital acts with a barrier method (month 1 to 2: 29% vs. 22%; month 3 to 4: 33% vs. 21%; and month 5 to 6: 35% vs. 19%; adjusted P = 0.012). Condom use in the Choice group was higher as well (adjusted P = 0.036). When we used a transitional multilogistic regression approach to account for differential loss to follow-up in the two groups, results were similar.
Offering a choice of barrier methods increased overall barrier method use without decreasing condom use.
我们评估了对于使用口服避孕药（OCs）避孕的女性，提供屏障避孕法的选择是否能在不降低避孕套使用率的情况下提高屏障避孕法的总体使用率。
我们将167名有性传播疾病（STD）风险的口服避孕药使用者随机分为两组，一组仅接受男用乳胶避孕套（避孕套组），另一组接受男用乳胶避孕套和壬苯醇醚 - 9薄膜（选择组）。所有参与者都接受了类似的分级性传播疾病防护咨询。我们通过每日日记评估避孕方法的使用情况。
选择组使用屏障避孕法保护的性交行为比例显著更高（第1至2个月：29%对22%；第3至4个月：33%对21%；第5至6个月：35%对19%；校正P = 0.012）。选择组的避孕套使用率也更高（校正P = 0.036）。当我们使用过渡性多项逻辑回归方法来考虑两组随访中不同的失访情况时，结果相似。
提供屏障避孕法的选择可提高屏障避孕法的总体使用率，且不降低避孕套的使用率。
