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논문분류	춘계학술대회 초록집
제목	The Impact of Body Mass Index on Survival in Korean Hemodialysis Patients: A Prospective Multicenter Cohort Study
저자	Jeung-Min Park1, Jang-Hee Cho1, Hye Min Jang2, Yon Su Kim3, Shin-Wook Kang4,Chul Woo Yang5, Nam-Ho Kim6, Eugene Kwon1, Hyun-Ji Kim1, Ji-Eun Lee1,Hee-Yeon Jung1, Ji-Young Choi1, Sun-Hee Park1, Chan-Duck Kim1, Yong-Lim Kim1
출판정보	2014; 2014(1):
키워드	체질량지수, 혈액투석, 생존률
초록	Introduction: The association of body mass index (BMI) with survival in patients on hemodialysis (HD) is not consistent across different ethnic groups. We investigated the influence of BMI on mortality in Korean HD patients. Methods: Patients on maintenance HD were collected from a multicenter prospective cohort study in Korea between 2009 and 2014. Baseline BMI was categorized as five groups by quintiles. Cox regression analysis was used to calculate the hazard ratio (HR) of mortality with a BMI of quintile 3 (BMI 21.6-23.0 kg/m2) as the reference. Clinical variables such as age, sex, dialysis duration, coronary artery disease, diabetes mellitus, hemoglobin, C-reactive protein were used for adjustment. Results: A total of 2,833 patients were enrolled with mean 24.2±13.2 months of follow-up duration. The mean BMI was 22.6±3.3 kg/m2. The multivariate analysis revealed that the highest quintile of BMI (>25.1 kg/m2) was associated with lower mortality (HR=0.65, 95 %confidence interval=0.45-0.93, p=0.018). However, the other quintiles of BMI showed equivalent survival compared with the reference category of BMI quintile 3. Conclusions: Higher baseline BMI levels predicted greater survival, but lower BMI levels were not related with high mortality in Korean HD patients. Additional studies are needed to evaluate the effect of changes in BMI on the long- term survival in maintenance HD patients.
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