#2900 Appetite changes as a predictor of mortality among end-stage renal disease patients (ESRD) on maintenance hemodialysis: one year survival analysis

Abstract

Abstract Background and Aims End-stage renal disease (ESRD) has become a major health problem worldwide. Appetite loss is a dominant feature of the disease which plays an important role in protein energy wasting and malnutrition, with subsequent higher rates of mortality. The study aimed to examine appetite changes among patients with ESRD on maintenance hemodialysis and its association with one-year mortality. Method This is a prospective observational study that was conducted at Mansoura Nephrology and Dialysis Unit (MNDU), Mansoura University and Aga Hospital Dialysis Unit over a period of one-year Patients who fulfilled inclusion and exclusion criteria were included. The study was explained to all participants and informed consent was obtained. All demographic, clinical, and laboratory data were collected. Appetite was assessed using the following 4 scores: subjective assessment of appetite, the self-assessment of appetite changes for 30 days, The Visual Analog Scale (VAS), and The Functional Assessment of Anorexia/Cachexia Therapy (FAACT). All patients were followed up for one year to report the mortality events. Results The current study included 162 hemodialysis patients whose age (SD) was 48.72±12.64 years, and males constituted 57.4% of them. Around 44.4% of the cases reported having good appetite using the subjective assessment score, and 13% reported decreased appetite using the self-assessment of appetite score. The median VAS score was 80, and the FAACT score ranged from 7 to 32 with a mean value of 15.85. After one year of observation, death occurred in 24/162 (14.8%). There were statistically significant differences in mean values of three appetite scores among both dead and alive groups with lower values reported in the deceased one [self-assessment of appetite (p=0.019), VAS score (p=0.001), and FACCT (p=<0.001)]. The ROC analysis shows that FACCT & VAS scores were able to determine patients who destinated to mortality with area under curve (AUC) of (0.774 &0.704), at a cut-off point of (14.5%, and 75), with sensitivity of (83.3% &and 66.7%) and specificity of (61.6%, and 53.6%), respectively. Kaplan Meier survival analysis demonstrated that VAS & FACCT scores had a statistically significant effect on median survival time among studied cases. Lower median survival time was detected among cases with decreased appetite by self-assessment tool, VAS score less than 80, and FACCT score less than 15. Kaplan-Meier and hazard curves for the included sample showed lower Median survival time (95% CI) among patients with diminished appetite by the 4 scores: 311.67(265.98-357.36) by self-assessment score (p=0.008), 344.28 (329.57-358.9) days by subjective assessment of appetite (p=0.28), 342.33(330.46-354.19) days by VAS score (p=0.016), and 332.01(314.6-349.43) days by FAACT score (p<0.0001). Cox regression analysis demonstrated that VAS and FACCT scores were statistically significant predictors of median survival time among studied cases (p<0.001, <0.001) and hazard ratio (HR) of (0.968 & 0.734), respectively. Conclusion Diminished appetite is prevalent among hemodialysis patients. Poor appetite is associated with higher mortality. Lower appetite score values can predict mortality among such patients.