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Specifically, the aim was to determine whether current OC use was associated with lower extra-pair and higher in-pair sexual interest and behavior, because OC use suppresses cyclical shifts in mating psychology that occur in normally cycling women. Zero-inflated Poisson (ZIP) regression and negative binomial models were used to test associations between OC use and these sexual measures, controlling for other relevant predictors (e.g., age, parity, in-pair sexual satisfaction, relationship length). The overall incidence of having had an extra-pair partner or one-night stand in the previous year was not related to current OC use (the majority of the sample had not). However, among the women who had engaged in extra-pair sexual behavior, OC users had fewer one-night stands than non-users, and tended to have fewer partners, than non-users. OC users also had more frequent dyadic intercourse than non-users, potentially indicating higher commitment to their current relationship. These results suggest that suppression of fertility through OC use may alter important aspects of female sexual behavior, with potential implications for relationship functioning and stability.<\/jats:p>","DOI":"10.1177\/147470491401200103","type":"journal-article","created":{"date-parts":[[2015,7,23]],"date-time":"2015-07-23T04:47:19Z","timestamp":1437626839000},"page":"36-52","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":4,"title":["Current Hormonal Contraceptive Use Predicts Female Extra-Pair and Dyadic Sexual Behavior: Evidence Based on Czech National Survey Data"],"prefix":"10.1177","volume":"12","author":[{"given":"Kate\u0159ina","family":"Klapilov\u00e1","sequence":"first","affiliation":[{"name":"Faculty of Humanities, Charles University, Prague, Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kelly D.","family":"Cobey","sequence":"additional","affiliation":[{"name":"School of Natural Sciences, University of Stirling, Stirling, United Kingdom"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Timothy","family":"Wells","sequence":"additional","affiliation":[{"name":"Institute of Human Sciences, Aberystwyth University, Aberystwyth, United Kingdom"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S. 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