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The women were categorised into normal, overweight and obese according to their body mass index (<jats:styled-content style=\"fixed-case\">BMI<\/jats:styled-content>). Kaplan\u2013Meier curves were constructed estimating the cumulative probability of a spontaneous pregnancy over time. The pregnancy loss patterns were correlated with <jats:styled-content style=\"fixed-case\">BMI<\/jats:styled-content> and data were compared between the categories using the Kruskal\u2013Wallis test.<\/jats:p><\/jats:sec><jats:sec><jats:title>Main outcome measures<\/jats:title><jats:p>Pregnancy loss pattern and time to pregnancy intervals.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Overall, 23.2, 51.4 and 64.2% of women conceived within first 1, 3 and 6\u00a0months, respectively. Obese women had cumulative pregnancy rates of 65.2 and 80% by three and 6\u00a0months, respectively, which was more than the cumulative pregnancy rates for women with normal <jats:styled-content style=\"fixed-case\">BMI<\/jats:styled-content> (49.2 and 65.8%). Comparison of survival curves indicated a significant difference in time to conceive for obese when compared with normal and overweight women (*<jats:italic>P\u00a0<\/jats:italic>=\u00a00.01), suggesting a higher prevalence of superfertility in obese women with <jats:styled-content style=\"fixed-case\">RMC<\/jats:styled-content>.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Our findings suggest that obese women may have a greater efficacy to achieve pregnancy, but with an increased risk of miscarriage, which may suggest the possible metabolic effects of obesity on endometrium.<\/jats:p><\/jats:sec><jats:sec><jats:title>Tweetable abstract<\/jats:title><jats:p>A significantly higher prevalence of superfertility may be found in obese women with recurrent miscarriage.<\/jats:p><\/jats:sec>","DOI":"10.1111\/1471-0528.13806","type":"journal-article","created":{"date-parts":[[2015,12,29]],"date-time":"2015-12-29T12:28:53Z","timestamp":1451392133000},"page":"217-222","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Superfertility is more prevalent in obese women with recurrent early pregnancy miscarriage"],"prefix":"10.1111","volume":"123","author":[{"given":"HM","family":"Bhandari","sequence":"first","affiliation":[{"name":"Division of Reproductive Health Clinical Science Research Laboratories Warwick Medical School University of Warwick Coventry UK"},{"name":"Department of Obstetrics and Gynaecology University Hospitals of Coventry and Warwickshire NHS Trust Coventry UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"BK","family":"Tan","sequence":"additional","affiliation":[{"name":"Division of Reproductive Health Clinical Science Research Laboratories Warwick Medical School University of Warwick Coventry UK"},{"name":"Department of Obstetrics and Gynaecology Birmingham Heartlands Hospital Heart of England NHS Foundation Trust Birmingham UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S","family":"Quenby","sequence":"additional","affiliation":[{"name":"Division of Reproductive Health Clinical Science Research Laboratories Warwick Medical School University of Warwick Coventry UK"},{"name":"Department of Obstetrics and Gynaecology University Hospitals of Coventry and Warwickshire NHS Trust Coventry UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2015,12,29]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/0140-6736(90)92159-F"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.fertnstert.2012.09.023"},{"key":"e_1_2_6_4_1","first-page":"132","article-title":"Predicting recurring miscarriage: what is important?","volume":"82","author":"Quenby SM","year":"1993","journal-title":"Obstet Gynecol"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1093\/humupd\/8.5.463"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1479-828X.2006.00599.x"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1472-6483(10)61057-7"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1038\/nm.1924"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1093\/molehr\/gaq079"},{"key":"e_1_2_6_10_1","unstructured":"World Health Organization.Fact sheet: obesity and overweight. 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