Table 6 Internal consistency, test-retest reliability of the PCS, MCS, and kidney disease targeted scales
Items | Test-retest reliability ICC (Confident interval) | Kappa | Weighted kappa | Cronbach’s alpha (Dialysis group) |
|---|---|---|---|---|
Symptom/problem | 0.997 (0.991-0.999) | 0.826-1 | 0.851-1 | 0.833 |
Effects of kidney disease | 0.983 (0.951-0.994) | 0.75-1 | 0.828-1 | 0.794 |
Burden of kidney disease | 1 | 1-1 | 1-1 | 0.651 |
PCS | 0.993 (0.981-0.998) | 0.688-1 | 0.737-1 | 0.322 |
MCS | 0.996 (0.989-0.999) | 0.537 |