{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,21]],"date-time":"2026-07-21T02:10:12Z","timestamp":1784599812106,"version":"3.55.0"},"reference-count":31,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2025,5,22]],"date-time":"2025-05-22T00:00:00Z","timestamp":1747872000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Diabet Med"],"published-print":{"date-parts":[[2025,8]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Aims<\/jats:title>\n                    <jats:p>Young\u2010onset type 2 diabetes mellitus (YT2DM) is an aggressive phenotype, with some claiming that diagnosis at &lt;40\u2009years of age represents a distinct higher risk group. Others have suggested restricting YT2DM to those diagnosed at &lt;30\u2009years of age. In this context, we examined whether pregnancy outcomes differ between women diagnosed with YT2DM at &lt;30\u2009years of age (T2D30) versus those diagnosed at 30 to &lt;40\u2009years of age (T2D40).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This retrospective analysis (2010\u20132019) compared pregnancy outcomes in women with pre\u2010gestational T2D30 versus T2D40. Co\u2010primary outcomes included preterm delivery, large for gestational age (LGA) infants, and pre\u2010eclampsia.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Compared to T2D40 (\n                      <jats:italic>N<\/jats:italic>\n                      \u2009=\u200969), T2D30 (\n                      <jats:italic>N<\/jats:italic>\n                      \u2009=\u200966) were significantly younger, had a longer duration of diabetes, and had higher rates of smoking (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;0.05 for all). In both groups, obesity affected \u226560% of women and similar rates of preterm delivery and LGA infants were seen. Women with T2D30 had at least a twofold increase in the adjusted odds of excess gestational weight gain (GWG). Rates of proteinuria and pre\u2010eclampsia were increased in T2D30, although significance was lost following adjustment for factors such as glycaemia. Younger age of YT2DM diagnosis and longer duration of YT2DM (as continuous variables), but not maternal age, were independently associated with higher mean pregnancy HbA1c and excess GWG (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;0.05 for both).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>An earlier age of YT2DM diagnosis and\/or longer duration of YT2DM were associated with excess GWG and a higher mean\u2010pregnancy HbA1c. Rates of pre\u2010eclampsia and proteinuria were increased in T2D30, likely mediated at least in part by factors such as glycaemia. Our findings suggest that the age of YT2DM diagnosis and\/or duration of YT2DM, not just maternal age, should be considered when assessing pregnancy risks.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/dme.70049","type":"journal-article","created":{"date-parts":[[2025,5,22]],"date-time":"2025-05-22T08:38:13Z","timestamp":1747903093000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Pregnancy outcomes in women with young\u2010onset type 2 diabetes: the impact of age of diabetes diagnosis and duration of diabetes"],"prefix":"10.1111","volume":"42","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8333-4502","authenticated-orcid":false,"given":"Xi May","family":"Zhen","sequence":"first","affiliation":[{"name":"Department of Endocrinology Royal Prince Alfred Hospital  Sydney New South Wales Australia"},{"name":"Faculty of Medicine and Health, University of Sydney  Sydney New South Wales 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