Unfavorable dietary quality and overweight or obesity in kidney transplant recipients as judged by the Chinese diet balance index 2016 (DBI-16).

Little is known the effects of dietary quality (DQ) on kidney transplantation (KTR). We explored the associations between DQ assessed by the Chinese Diet Balance Index 2016 (DBI-16) and overweight or obesity in KTR.KTR aged 18-65 years from Guangdong Second Provincial General Hospital were participated in this cross-sectional study. Anthropometric measurements such as body weight, height, body mass index (BMI) and biochemical parameters were measured by standard methods. Dietary intake was assessed by 3-day, 24-hour food records and DQ by DBI-16. Logistic regression was used to estimate odds ratios (OR) and 95% confidence intervals (95% Cl) for leading to overweight in KTR by the components of DBI-16 and DQ scores.97 KTR were enrolled and divided into overweight group (BMI ≥24 kg/m2, n=35) and non-overweight group (BMI <24 kg/m2, n=62) in the study. Compared with non-overweight individuals, overweight individuals took excessive grains, cooking oils, salts and didn't meet the recommended levels of vegetable and fruit intake (p<0.05) assessed by DBI-16. The lower bound score (LBS) was positively associated with overweight (29.7±5.42) in KTR (LBS: OR: 1.099, 95% CI: 1.019-1.185, p=0.014), and the higher bound score (HBS) score was negatively related with overweight (16.0±4.85) in KTR (HBS: OR: 0.903, 95% CI: 0.822-0.992, p=0.034). Combination of LBS and HBS predicted the occurrence of overweight in KTR (AUC: 0.705, p<0.001).Unfavorable DQ, including overall excessive consumption, excessive intake of grains, cooking oils, salts and insufficient intake of vegetable and fruit, was significantly associated with the occurrence of overweight or obesity in KTR.