{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,4]],"date-time":"2025-09-04T14:30:42Z","timestamp":1756996242532},"reference-count":36,"publisher":"Wiley","issue":"21-22","license":[{"start":{"date-parts":[[2013,8,20]],"date-time":"2013-08-20T00:00:00Z","timestamp":1376956800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Institute of Family Sciences, University of Navarra."}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Clinical Nursing"],"published-print":{"date-parts":[[2013,11]]},"abstract":"<jats:sec><jats:title>Aims and objectives<\/jats:title><jats:p>To assess women's attitudes towards the mechanisms of action of birth control methods.<\/jats:p><\/jats:sec><jats:sec><jats:title>Background<\/jats:title><jats:p>When addressing women's knowledge of and attitudes towards birth control methods, researchers frequently focus on side effects, effectiveness or correct use. Women's opinions about mechanisms of action have been much less investigated, and research is usually concentrated on the <jats:styled-content style=\"fixed-case\">EC<\/jats:styled-content> pill.<\/jats:p><\/jats:sec><jats:sec><jats:title>Design<\/jats:title><jats:p>Cross\u2010sectional study.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Women, aged 18\u201349, from <jats:styled-content style=\"fixed-case\">G<\/jats:styled-content>ermany, <jats:styled-content style=\"fixed-case\">F<\/jats:styled-content>rance, the <jats:styled-content style=\"fixed-case\">UK<\/jats:styled-content>,<jats:styled-content style=\"fixed-case\"> S<\/jats:styled-content>weden and <jats:styled-content style=\"fixed-case\">R<\/jats:styled-content>omania were randomly selected (<jats:italic>n<\/jats:italic>\u00a0=\u00a01137). They were asked whether they would use a method that may work after fertilisation or after implantation and whether they would continue using it after learning it may have such effects. Logistic regression was performed to evaluate the influence of certain characteristics on women's attitudes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Almost half of women in <jats:styled-content style=\"fixed-case\">R<\/jats:styled-content>omania and <jats:styled-content style=\"fixed-case\">G<\/jats:styled-content>ermany would not use methods with postfertilisation effects, while the lowest percentages were found in <jats:styled-content style=\"fixed-case\">S<\/jats:styled-content>weden and in <jats:styled-content style=\"fixed-case\">F<\/jats:styled-content>rance. Regarding methods with postimplantation effects, higher percentages were found in all the countries. Highly educated women and those using a highly effective method were more likely to use methods with postfertilisation effects. On the contrary, married women, those who stated that human life begins at fertilisation and women with middle\/high religiosity were less likely to consider using methods that may act after fertilisation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>One\u2010third of <jats:styled-content style=\"fixed-case\">E<\/jats:styled-content>uropean women reported that they would not consider using a method that may have postfertilisation effects.<\/jats:p><\/jats:sec><jats:sec><jats:title>Relevance to clinical practice<\/jats:title><jats:p>Given that postfertilisation effects may not be acceptable to some women, informing them of which methods may have these effects is essential to obtaining complete informed consent and to promoting women's 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