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We compared risk factors at time of diagnosis among those diagnosed at \u226445\u00a0years (early onset) with diagnosis age 46 to 55, 56 to 65 (average onset\u00a0=\u00a0reference), 66 to 75, and &gt;75\u00a0years (late onset). Prevalence ratios (PRs) were computed by using Poisson regression.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Poor glucose control, ie, HbA1c\u00a0\u2265\u00a075\u00a0mmol\/mol (\u22659.0%) in the early\u2010, average\u2010, and late\u2010onset groups was observed in 12%, 7%, and 1%, respectively (PR 1.70 [95% confidence intervals (CI) 1.27, 2.28] and PR 0.17 [95% CI 0.06, 0.45]). A similar age gradient was observed for severe obesity (body mass index\u00a0&gt;\u00a040\u00a0kg\/m<jats:sup>2<\/jats:sup>: 19% vs. 8% vs. 2%; PR 2.41 [95% CI 1.83, 3.18] and 0.21 (95% CI 0.08, 0.57]), dyslipidemia (90% vs. 79% vs. 68%; PR 1.14 [95% CI 1.10, 1.19] and 0.86 [95% CI 0.79, 0.93]), and low\u2010grade inflammation (C\u2010reactive protein\u00a0&gt;\u00a03.0\u00a0mg\/L: 53% vs. 38% vs. 26%; PR 1.41 [95% CI 1.12, 1.78] and 0.68 [95% CI 0.42, 1.11]). Daily smoking was more frequent and meeting physical activity recommendations less likely in persons with early\u2010onset type 2 DM.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>We found a clear age gradient, with increasing prevalence of clinical and behavioural risk factors the younger the onset age of type 2 DM. Younger persons with early\u2010onset type 2 DM need clinical awareness and support.<\/jats:p><\/jats:sec>","DOI":"10.1002\/dmrr.2968","type":"journal-article","created":{"date-parts":[[2017,11,24]],"date-time":"2017-11-24T19:22:39Z","timestamp":1511551359000},"source":"Crossref","is-referenced-by-count":53,"title":["Early\u2010onset type 2 diabetes: Age gradient in clinical and behavioural risk factors in 5115 persons with newly diagnosed type 2 diabetes\u2014Results from the DD2 study"],"prefix":"10.1002","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9296-7179","authenticated-orcid":false,"given":"A.","family":"Bo","sequence":"first","affiliation":[{"name":"Danish Diabetes Academy  Odense Denmark"},{"name":"Department of Public Health Aarhus University  Aarhus 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