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. 2013 Jun 21;3(6):e002601. doi: 10.1136/bmjopen-2013-002601

Figure 1.

Figure 1

Meta-analysis of five logistic regressions of type 2 diabetes mellitus for the social class score (range: 2–14 points) in women and men.a–d aORs and 95% CI derived from study-stratified two-level mixed effects logistic regression models. bAdjusted for age, employment status, marital status and neighbourhood unemployment rate. cData from five population-based studies: the cardiovascular disease, living and ageing in Halle Study (CARLA), the Dortmund Health Study (DHS), the Heinz Nixdorf Recall Study (HNR), the Cooperative Health Research in the Region of Augsburg (KORA) S4 Study, and the Study of Health in Pomerania (SHIP), Germany, 1997–2006. dHeterogeneity tested via the Q statistic and I² index.