Being Underweight Is Associated with Increased Risk of Sudden Cardiac Death in People with Diabetes Mellitusopen access
- Authors
- Kim, Yun Gi; Han, Kyung-Do; Roh, Seung-Young; Jeong, Joo Hee; Choi, Yun Young; Min, Kyongjin; Shim, Jaemin; Choi, Jong-Il; Kim, Young-Hoon
- Issue Date
- Feb-2023
- Publisher
- MDPI
- Keywords
- underweight; diabetes mellitus; sudden cardiac death
- Citation
- JOURNAL OF CLINICAL MEDICINE, v.12, no.3
- Journal Title
- JOURNAL OF CLINICAL MEDICINE
- Volume
- 12
- Number
- 3
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/43872
- DOI
- 10.3390/jcm12031045
- ISSN
- 2077-0383
- Abstract
- Background: Diabetes mellitus (DM) can cause various atherosclerotic cardiovascular disease including sudden cardiac death (SCD). The impact of being underweight on the risk of SCD in people with DM remains to be revealed. We aimed to evaluate the risk of SCD according to body-mass index (BMI; kg/m(2)) level in DM population. Methods: We used a nationwide healthcare insurance database to conduct this study. We identified people with DM among those who underwent nationwide health screening during 2009 to 2012. Medical follow-up data was available until December 2018. Results: A total of 2,602,577 people with DM with a 17,851,797 person*year follow-up were analyzed. The underweight group (BMI < 18.5) showed 2.4-fold increased risk of SCD during follow-up (adjusted-hazard ratio [HR] = 2.40; 95% confidence interval [CI] = 2.26-2.56; p < 0.001). When normal-BMI group (18.5 <= BMI < 23) was set as a reference, underweight group (adjusted-HR = 2.01; 95% CI = 1.88-2.14) showed even higher risk of SCD compared with the obesity group (BMI >= 30; adjusted-HR = 0.89; 95% CI = 0.84-0.94). When BMI was stratified by one unit, BMI and SCD risk showed a U-curve association with the highest risk observed at low BMI levels. The lowest risk was observed in 27 <= BMI < 28 group. The association between being underweight and increased SCD risk in DM people was maintained throughout various subgroups. Conclusions: Being underweight is significantly associated with an increased risk of SCD in the DM population. A steep rise in the risk of SCD was observed as the BMI level decreased below 23. The lowest risk of SCD was observed in 27 <= BMI < 28 group.
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