The inconsistent use of hormonal contraceptive methods can result, during the first year of use, in one in twelve women still having an undesired pregnancy. This may lead to women experiencing fear of becoming pregnant (FBP). We have only found one study examining the proportion of FBP among women who used hormonal contraceptives. To gather further scientific evidence we undertook an observational, cross-sectional study involving 472 women at a Spanish university in 2005-2009. The inclusion criteria were having had vaginal intercourse with a man in the previous three months and usual use for contraception of a male condom or hormonal contraceptives, or no method of contraception. The outcome was FBP. The secondary variables were contraceptive method used (oral contraceptives; condom; none), desire to increase the frequency of sexual relations, frequency of sexual intercourse with the partner, the sexual partner not always able to ejaculate, desire to increase the partner's time before orgasm, age and being in a stable relationship. A multivariate logistic regression model was used to determine the associated factors. Of the 472 women, 171 experienced FBP (36.2

作者：Felipe, Navarro-Cremades；Antonio, Palazón-Bru；María Del ángel, Arroyo-Sebastián；Luis, Gómez-Pérez；Armina, Sepehri；Salvador, Martínez-Pérez；Dolores, Marhuenda-Amorós；María Mercedes, Rizo-Baeza；Vicente Francisco, Gil-Guillén

来源：PeerJ 2015 年 3卷