{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T10:45:10Z","timestamp":1789555510530,"version":"build-2803163510"},"reference-count":43,"publisher":"Oxford University Press (OUP)","issue":"3","license":[{"start":{"date-parts":[[2022,11,10]],"date-time":"2022-11-10T00:00:00Z","timestamp":1668038400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2023,2,14]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec>\n                  <jats:title>Background<\/jats:title>\n                  <jats:p>Although the morbidity and mortality of cardiovascular diseases (CVD) are rising in young women, the risk factors of CVD among Korean pre-menopausal women have not been intensively investigated.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Aims<\/jats:title>\n                  <jats:p>To determine how age at menarche and other female reproductive factors are associated with the risk of CVD in pre-menopausal women.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods and results<\/jats:title>\n                  <jats:p>A total of 1 088 992 pre-menopausal women who participated in health screening in 2009 were included. The study outcomes were myocardial infarction (MI) and ischaemic stroke. Cox proportional hazards regression analysis was conducted with adjustment of traditional CVD risk factors and reproductive factors.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>Mean age was 43.8 \u00b1 5.3 years (98.9%, &amp;lt; 55 years), 3.5% were current smokers, and 1.2% were heavy drinkers. During a mean follow-up of 8.3years [9 032 685.9 person-years (PY)], there were 10 876 CVD events (1.0 per 1000 PY).With later menarche, the risk of CVD increased; \u226412 years [adjusted hazard ratio (HR) 1.04, 95% confidence interval 0.93\u20131.16], 13 years (reference), 14 years (1.06, 0.98\u20131.14), 15 years (1.15, 1.07\u20131.24), 16 years (1.23, 1.14\u20131.34), and \u226517 years (1.33, 1.24\u20131.44). Compared with non-users, oral contraceptives (OC) users (\u22651 year) had an increased risk of CVD (1.11, 1.01\u20131.22) (P for trend = 0.007).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>Later menarche than the mean age at menarche (13 years old) and the use of OC (\u22651 year) were associated with a higher risk of CVD, after adjusting for traditional cardiovascular risk factors. This study suggests that female reproductive factors could be unique risk factors for CVD in pre-menopausal women.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1093\/eurjpc\/zwac265","type":"journal-article","created":{"date-parts":[[2022,11,8]],"date-time":"2022-11-08T21:54:15Z","timestamp":1667944455000},"page":"264-273","source":"Crossref","is-referenced-by-count":18,"title":["Association of reproductive factors with cardiovascular disease risk in pre-menopausal women: nationwide population-based cohort study"],"prefix":"10.1093","volume":"30","author":[{"given":"Su-Min","family":"Jeong","sequence":"first","affiliation":[{"name":"Department of Medicine, Seoul National University College of Medicine , 103, Daehak-ro, Jongno-gu, Seoul 03080 , Republic of Korea"},{"name":"Department of Family Medicine, Seoul National University Health Service Center , 1, Gwanak-ro, Gwanak-gu, Seoul 08826 , Republic of Korea"},{"name":"Department of Family Medicine, Seoul National University 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