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Random\u2010effects meta\u2010regression was used to determine whether duration of OC use and time since last OC use were associated with mortality.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Main results<\/jats:title>\n                    <jats:p>Nine studies were included. Ever use of OCs was not associated with mortality from all causes (hazard ratio [HR] 0.94; 95% CI 0.87\u20131.02) or breast cancer (HR 1.00; 95% CI 0.95\u20131.06). Neither the duration of OC use nor the time since last OC use was associated with all\u2010cause or breast cancer mortality. In an analysis of a small number of studies, ever users were at decreased risk of mortality from ovarian cancer (HR 0.58; 95% CI 0.35\u20130.94).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>There is no significant association between ever use of OCs and mortality from all causes or breast cancer.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1016\/j.ijgo.2015.05.026","type":"journal-article","created":{"date-parts":[[2015,8,14]],"date-time":"2015-08-14T21:31:30Z","timestamp":1439587890000},"page":"228-233","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":16,"title":["Meta\u2010analysis of oral contraceptive use and risks of all\u2010cause and cause\u2010specific death"],"prefix":"10.1002","volume":"131","author":[{"given":"Guo\u2010Chao","family":"Zhong","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jia\u2010Hao","family":"Cheng","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiang\u2010Long","family":"Xu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kang","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2015,8,15]]},"reference":[{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/S1470-2045(05)70273-4"},{"issue":"173","key":"e_1_2_6_3_2","first-page":"1","article-title":"Current contraceptive status among women aged 15\u201344: United States, 2011\u20132013","author":"Daniels K.","year":"2014","journal-title":"NCHS Data Brief"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1093\/ije\/dyr134"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2011.06.056"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(12)60478-4"},{"issue":"1","key":"e_1_2_6_7_2","doi-asserted-by":"crossref","first-page":"68","DOI":"10.1001\/jama.1974.03230260042022","article-title":"Functional ovarian cysts and oral contraceptives. 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