Table 4.
Comparison of mean scores and validity statistics by eGFRa
| Measure | Mean (SD) Score | F Statistic | η2b | RV (95% CI) | ||
|---|---|---|---|---|---|---|
| GFR 30–59, n=153 | GFR 15–29, n=50 | GFR<15, n=17 | ||||
| KDQOL-36 | ||||||
| Burden (+) | 79.9 (24.0) | 69.6 (24.8) | 55.5 (23.1) | 9.9c | 0.08 | 1.0 |
| Effects (+) | 84.8 (15.7) | 81.5 (18.9) | 70.3 (17.4) | 6.1d | 0.05 | 0.61 (0.20 to 1.62) |
| Symptoms (+) | 82.6 (14.1) | 78.6 (16.3) | 77.4 (16.8) | 2.0 | 0.02 | 0.20 (0.00 to 0.67) |
| CKD-QOL | ||||||
| CKD-QOL-6 (−) | 41.4 (6.8) | 44.8 (7.4) | 47.7 (8.1) | 9.1c | 0.08 | 0.92 (0.30 to 2.03) |
| CKD-QOL-CAT(−) | 39.4 (8.63) | 44.4 (8.6) | 47.5 (8.4) | 11.5c | 0.10 | 1.15 (0.51 to 2.56) |
| Three- or six-item CAT (−) | 40.1 (7.9) | 44.5 (8.3) | 48.5 (8.3) | 12.4c | 0.10 | 1.25 (0.54 to 2.85) |
| SF-12v2 | ||||||
| PCS (+) | 45.4 (10.5) | 42.2 (9.9) | 43.1 (10.2) | 2.0 | 0.02 | 0.20 (0.01 to 0.77) |
| MCS (+) | 50.7 (10.2) | 50.7 (10.3) | 48.3 (9.9) | 0.4 | 0.00 | 0.04 (0.00 to 0.19) |
Means are unadjusted. 95% CI, 95% confidence interval.
a
Abstracted from medical record.
b
η2 estimate of variance explained by groups (see text); significance is same as F ratio.
c
P<0.001 (see text).
d
P<0.05 (see text).