Shen Y, et al. - Risks of early postpartum diabetes and prediabetes in Chinese women with and without gestational diabetes mellitus (GDM) was compared during pregnancy. Tianjin gestational diabetes mellitus (GDM) observational study involved one thousand, two hundred sixty-three women with a history of GDM and seven hundred five women without GDM who took an interest in the urban GDM universal screening survey by using World Health Organization's criteria. Researchers reported that women with prior GDM had significantly increased risks for postpartum diabetes and prediabetes, with the highest risk at the first 3-4 years after delivery, compared with those without GDM.