| SIAN | Italian Society of Nephrology Nurse |
| NECN-ESRD | Nursing Education and Competencies in Nutrition for Patients with CKD in ESRD |
| CKD | Chronic Kidney Disease |
| ESRD | End Stage Renal Disease |
| CVR | Content Validity Ratio |
| EFA | Exploratory Factor Analysis |
| CFA | Confirmatory Factor Analysis |
| BIA | Bioelectrical Impedance Analysis |
| IDWG | Interdialytic Weight Gain |
| QoL | Quality of Life |
| KDOQI | Kidney Disease Outcomes Quality Initiative |
| KMO | Kaiser–Meyer–Olkin Measure of Sampling Adequacy |
| WLSMV | Weighted Least Squares Mean and Variance Adjusted |
| CFI | Comparative Fit Index |
| TLI | Tucker–Lewis Index |
| RMSEA | Root Mean Square Error of Approximation |
| SRMR | Standardized Root Mean Square Residual |
| ECV | Explained Common Variance |
| ICC | Intraclass Correlation Coefficient |