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Title

Association of the modified creatinine index with quality of life in haemodialysis patients.

Authors

Zeng, Jie; Wang, Yijing; Li, Hong; Wen, Hongying

Abstract

Aims/Background The evaluation of health-related quality of life in patients undergoing maintenance haemodialysis has garnered increasing attention. The modified creatinine index, a surrogate marker for muscle mass, has been linked to various clinical outcomes. However, the relationship between modified creatinine index and health-related quality of life in maintenance haemodialysis patients remains unclear. This study aims to elucidate the association between modified creatinine index and health-related quality of life in individuals receiving maintenance haemodialysis. Methods This cross-sectional study included 217 maintenance haemodialysis patients. Health-related quality of life was assessed using the Kidney Disease Quality of Life Instrument. Collected data included general patient information, laboratory results, and haemodialysis-related parameters. The modified creatinine index was calculated based on gender, age, single-pool Kt/V (spKt/V), and pre-dialysis serum creatinine levels. Multiple linear regression models and smooth curve fitting were used to investigate the relationship between modified creatinine index and health-related quality of life. Subgroup analyses and interaction tests were performed to identify potential effect modifiers. Results The 217 maintenance haemodialysis patients had a mean age of 53.66±13.15 years and a median dialysis vintage of 39 (25–84) months; 120 (55.30%) were male. The mean health-related quality of life score was 55.76±10.33, and the mean modified creatinine index was 22.72±2.95 mg/kg/day. After adjusting for confounding factors, an increase in modified creatinine index was associated with an improvement in health-related quality of life (β=0.55, 95% CI: 0.04, 1.06, p = 0.033). No nonlinear relationship was identified between modified creatinine index and health-related quality of life by smooth curve fitting. Subgroup and interaction analyses indicated that the relationship between modified creatinine index and health-related quality of life was stable and not significantly influenced by age, gender, dialysis vintage, diabetes status, or body mass index (p > 0.05). Conclusion Modified creatinine index is positively correlated with health-related quality of life in maintenance haemodialysis patients, suggesting its potential utility in evaluating patient quality of life. Modified creatinine index could be clinically useful to improve the predictability of health-related quality of life in maintenance haemodialysis patients.

Subjects

CHINA; CROSS-sectional method; STATISTICAL models; CREATININE; CRONBACH'S alpha; PHOSPHORUS; BODY mass index; QUESTIONNAIRES; MULTIPLE regression analysis; SEX distribution; HEMODIALYSIS; DESCRIPTIVE statistics; AGE distribution; BLOOD urea nitrogen; MULTIVARIATE analysis; SERUM; ARTERIOVENOUS fistula; PARATHYROID hormone; QUALITY of life; STATISTICS; DIASTOLIC blood pressure; CONFIDENCE intervals; BIOMARKERS; SARCOPENIA; SERUM albumin; DIABETES

Publication

British Journal of Hospital Medicine (17508460), 2024, Vol 85, Issue 9, p1

ISSN

1750-8460

Publication type

Academic Journal

DOI

10.12968/hmed.2024.0298

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