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. 2017 Apr 13;9:37. doi: 10.1186/s13148-017-0338-2

Fig. 1.

Fig. 1

Study design—flowchart of subjects participating and lost to follow-up. O-GDM offspring of women with gestational diabetes in pregnancy, O-NoGDM offspring of women with risk factors for gestational diabetes but normal glucose tolerance in pregnancy, O-T1DM offspring of women with type 1 diabetes in pregnancy, O-BP offspring of women from the background population. *In the original cohort, 812 offspring were from the three groups, O-GDM, O-T1DM, and O-BP, due to the fact that O-NoGDM (n = 254) were not invited for the second follow-up (1066 − 254 = 812)