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KMID : 0338420210360030647
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The Korean Journal of Internal Medicine
2021 Volume.36 No. 3 p.647 ~ p.658
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Fasting glucose level and all-cause or cause-specific mortality in Korean adults: a nationwide cohort study
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Kim Yi-Suk
Park Yong-Moon
Han Kyung-Do
Yun Jae-Seung
Ahn Yu-Bae
Ko Seung-Hyun
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Abstract
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Background/Aims: Although people with diabetes have been shown to have higher mortality than people without diabetes, there is a lack of data on the association between fasting glucose (FG) levels and cause-specific mortality rates in the general population.
Methods: A total of 326,547 Korean adults over 20 years of age, who had received a health checkup between 2006 and 2008 were selected from the Korean National Health Insurance Service sample cohort dataset and followed until 2015. We estimated hazard ratios (HRs) of all-cause mortality and cause-specific mortality relative to various range of FG levels. All causes of death were classified according to International Classification of Diseases (ICD)-10 codes.
Results: During follow-up (mean, 8.5 years), a total of 13,536 deaths (mortality rate 4.89/1,000 person-year) occurred; 4,916 deaths from cancer, 2,133 from cardiovascular disease, 762 from infectious disease, 199 from renal disease, and 5,526 from other causes. The overall mortality rate increased with an increase in FG category (HR, 1.78; 95% confidence interval, 1.65 to 1.92; in the ≥ 160 mg/dL). In addition, a J-shaped associations was found between FG levels and all-cause mortality after adjustment for age, sex, smoking, drinking, physical activity, body mass index, diabetes mellitus medication, hypertension, and dyslipidemia. In particular, the risk of cancer-mortality with high FG levels was increased for men but not women.
Conclusions: The risk of all-cause and cause-specific mortality showed the tendency to increase when the FG level was outside of the normal range, indicating a J-shaped relationship, in both men and women.
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KEYWORD
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Fasting, Blood glucose, Mortality, Diabetes mellitus, Cohort study
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