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Dietary Adherence, Self-Regulatory Fatigue and Trait Self-Control Among Chinese Patients with Peritoneal Dialysis: A Cross-Sectional Study

Authors Gao Y, Shan Y, Jiang T, Cai L, Zhang F, Jiang X, Li X, Wang H

Received 24 December 2020

Accepted for publication 4 February 2021

Published 25 February 2021 Volume 2021:15 Pages 443—451

DOI https://doi.org/10.2147/PPA.S298231

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Naifeng Liu


Yajing Gao,1 Yan Shan,2 Tingting Jiang,3 Li Cai,4 Fanliang Zhang,3 Xinxin Jiang,1 Xue Li,1 Hong Wang1

1Nursing and Health School of Zhengzhou University, Zhengzhou, Henan, People’s Republic of China; 2Medical School of Zhengzhou University, Zhengzhou, Henan, People’s Republic of China; 3Zhengzhou University First Affiliated Hospital, Zhengzhou, Henan, People’s Republic of China; 4Renji Hospital Affiliated to Shanghai Jiao Tong University, Shangai, People’s Republic of China

Correspondence: Yan Shan Email [email protected]

Purpose: Little is known about factors that predict dietary adherence among Chinese patients undergoing peritoneal dialysis. We investigated whether self-regulatory fatigue and trait self-control influence dietary adherence among Chinese patients with peritoneal dialysis.
Methods: A total of 192 Chinese patients undergoing peritoneal dialysis were recruited at two peritoneal dialysis centers. The dietary adherence, trait self-control and self-regulatory fatigue of these patients were assessed using self-administered questionnaires. Clinical data were extracted from the hospital medical records. The significance of several social demographic factors on dietary adherence was analyzed using One-way ANOVA was used to analyze, whereas the association between dietary adherence and self-regulatory fatigue as well as trait self-control were analyzed using Pearson correlation. The independence association between dietary adherence and other influencing factors was assessed using Multivariable linear regression analyses.
Results: We found that peritoneal dialysis patients only moderately adhere to dietary prescriptions. The top three least adherences were observed for salt intake (1.89± 0.36), face of difficulty (2.86± 0.26) and fluid restriction adherence intake (2.97± 0.30). Multivariable linear regression analysis revealed that education level (β=0.339, P< 0.001), residence (β=− 0.151, P=0.015), self-regulatory fatigue (β= − 0.648, P< 0.001), and trait self-control (β=0.118, P=0.022) were independent predictors of dietary adherence.
Conclusion: Education level and residence strongly influence dietary adherence among Chinese peritoneal dialysis patients. On the other hand, Self-regulatory fatigue and trait self-control are independent predictors of dietary adherence among peritoneal dialysis patients. These findings can guide the enhancement of dietary adherence of peritoneal dialysis patients.

Keywords: peritoneal dialysis, dietary adherence, trait self-control, self-regulatory fatigue

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