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ABSTRACT Aims/Introduction To analyze the association between HbA1c level and the risk of all‐cause mortality in community patients with type 2 diabetes mellitus, and to provide a scientific basis for the management of type 2 diabetes mellitus in the community. Materials and Methods Based on a Zhejiang rural community type 2 diabetes mellitus cohort, a total of 10,310 patients with type 2 diabetes mellitus with complete baseline and follow‐up data were selected. The Cox proportional hazards regression model and the restricted cubic spline model were used to evaluate the relationship between the HbA1c level and the risk of all‐cause mortality. Results During a mean follow‐up of 5.5 years, 971 patients died. With HbA1c levels of 6.5–7.0% as the reference, after adjusting for relevant confounding factors, the HR(95%CI) of all‐cause mortality with HbA1c levels of 0.05). Conclusions The HbA1c levels were associated with the risk of all‐cause mortality in type 2 diabetes mellitus in a “J‐shaped” manner, a too high or a too low HbA1c level could increase the risk of death. Attention should be paid to the individual evaluation of patients and the setting of appropriate glycemic control goals.
He et al. (Tue,) studied this question.