Associations of BMI with all-cause mortality in normoglycemia, impaired fasting glucose and type 2 diabetes mellitus among an elderly Chinese population: a cohort study.

In adjusted Cox models, risk of mortality showed a decreasing trend with BMI < 18.5 kg/m 2 , 24 ≤ BMI < 28 kg/m 2 , and BMI ≥ 28 kg/m 2 compared to 18.5 ≤ BMI < 24 kg/m 2 : HR (95% CI): 1.33 (1.18 to 1.49), 0.88 (0.83 to 0.93), and 0.90 (0.82 to 0.98), respectively, for NFG; 0.89 (0.55 to 1.46), 0.84 (0.71 to 0.99), and 0.88 (0.70 to 1.11), respectively, for IFG; and 1.42 (0.88 to 2.29), 0.75 (0.64 to 0.89), and 0.76 (0.62 to 0.93), respectively, for T2DM.

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