Surveying the distribution of body mass index in non-dialysis patients with chronic kidney disease and the relevant influencing factors

Abstract

Objective To understand the distribution of body mass index （BMI） in non-dialysis patients with chronic kidney disease （CKD） and explore the possible influencing factors. MethodsA total of 369 patients participated in this cohort study for more than 6 months. And uni/multifactorial comparisons were made for distribution of BMI, diet/exercise profiles, nature/type of food and frequency of exercise. Results The level of BMI was excess （n = 84, 22.76%）, normal （n = 263, 71.27%） and too-low （n = 22, 5.97%）. No statistically significant inter-group differences existed in nature/type of food. Statistically significant inter-group differences in exercise frequency existed （P = 0.008）. Regression models were constructed by combining the above-mentioned influencing factors and other potential factors. The model revealed that exercise frequency （β = −0.201, P＜0.01） and beverage intake （β = 0.110, P = 0.032） were independent influencing factors of BMI. Conclusion BMI is generally normal for non-dialysis CKD patients at our center. And the number of BMI overload is greater than that of underload. Exercise frequency and beverage intake may be independent influencing factors of BMI.

Keywords

• chronic kidney disease
• body mass index
• body composition
• exercise
• beverage