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Relative risks (RRs) of GDM recurrence were obtained by general linear models for the binary family and adjusted for confounders. Analyses were stratified by BMI in first pregnancy (&lt;25 and \u226525\u00a0kg\/m<jats:sup>2<\/jats:sup>).<\/jats:p><\/jats:sec><jats:sec><jats:title>Main outcome measure<\/jats:title><jats:p>GDM in second pregnancy.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Among overweight\/obese women (BMI\u00a0\u226525), recurrence risk of GDM decreased in women who reduced their BMI by 1\u20132 units (relative risk [RR] 0.80, 95% CI 0.65\u20130.99) and &gt;2 units (RR 0.72, 95% CI 0.59\u20130.89) and increased if BMI increased by \u22654 units (RR 1.26, 95% CI 1.05\u20131.51) compared wth women with stable BMI (\u22121 to 1 units). In normal weight women (BMI\u00a0&lt;25), risk of GDM recurrence increased if BMI increased by 2\u20134 units (RR 1.32, 95% CI 1.08\u20131.60) and \u22654 units (RR 1.61, 95% CI 1.28\u20132.02) compared with women with stable BMI.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Interpregnancy weight loss reduced risk of GDM recurrence in overweight\/obese women. Weight gain between pregnancies increased recurrence risk for GDM in both normal and overweight\/obese women. Our findings highlight the importance of weight management in the interconception window in women with a history of GDM.<\/jats:p><\/jats:sec><jats:sec><jats:title>Tweetable abstract<\/jats:title><jats:p>Interpregnancy weight loss reduces recurrence of gestational diabetes mellitus in overweight\/obese women.<\/jats:p><\/jats:sec>","DOI":"10.1111\/1471-0528.16364","type":"journal-article","created":{"date-parts":[[2020,6,13]],"date-time":"2020-06-13T21:53:45Z","timestamp":1592085225000},"page":"1608-1616","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":34,"title":["Interpregnancy weight change and recurrence of gestational diabetes mellitus: a population\u2010based cohort study"],"prefix":"10.1111","volume":"127","author":[{"given":"LM","family":"Sorbye","sequence":"first","affiliation":[{"name":"Department of Global Public Health and Primary Care University of Bergen Bergen Norway"},{"name":"Norwegian National Advisory Unit on Women's Health Oslo University Hospital Rikshospitalet Oslo Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S","family":"Cnattingius","sequence":"additional","affiliation":[{"name":"Department of Medicine Karolinska University Hospital Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R","family":"Skjaerven","sequence":"additional","affiliation":[{"name":"Department of Global Public Health and Primary Care University of Bergen Bergen Norway"},{"name":"Centre for Fertility and Health Norwegian Institute of Public Health Oslo Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K","family":"Klungsoyr","sequence":"additional","affiliation":[{"name":"Department of Global Public Health and Primary Care University of Bergen Bergen Norway"},{"name":"Division for Mental and Physical Health Norwegian Institute of Public Health Bergen Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A\u2010K","family":"Wikstr\u00f6m","sequence":"additional","affiliation":[{"name":"Department of Medicine Karolinska University Hospital Stockholm Sweden"},{"name":"Department of Women's and Children's Health Uppsala University Uppsala Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"LG","family":"Kvalvik","sequence":"additional","affiliation":[{"name":"Department of Global Public Health and Primary Care University of Bergen Bergen Norway"},{"name":"Department of Biomedicine University of Bergen Bergen Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"N\u2010H","family":"Morken","sequence":"additional","affiliation":[{"name":"Department of Clinical Science University of Bergen Bergen Norway"},{"name":"Department of Obstetrics and Gynecology Haukeland University Hospital Bergen Norway"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,7,13]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1172\/JCI200524531"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0087863"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(09)60731-5"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1001\/jamainternmed.2017.2790"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/S2213-8587(19)30078-6"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1464-5491.2011.03541.x"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1089\/pop.2009.12303"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1007\/s12020-016-0922-9"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10995-015-1750-x"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0175288"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(06)69473-7"},{"key":"e_1_2_6_13_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pmed.1002367"},{"key":"e_1_2_6_14_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0b013e31821aa358"},{"key":"e_1_2_6_15_1","doi-asserted-by":"publisher","DOI":"10.1097\/AOG.0b013e3182a7f63e"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(14)60460-8"},{"key":"e_1_2_6_17_1","unstructured":"K\u00e4ll\u00e9nB K\u00e4ll\u00e9nK.The Swedish Medical Birth Register \u2013 a summary of content and quality. 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