Table 3.

Comparison of mean scores and validity statistics by treatment group

MeasureMean (SD) ScoreF Statisticη2aRV (95% CI)
Stage 3–5, n=118Dialysis, n=232Transplant, n=111
KDQOL-36
 Burden (+)76.4 (24.7)47.6 (27.1)74.6 (25.2)66.8b0.221.0
 Effects (+)82.9 (18.8)62.1 (22.2)83.1 (14.9)64.3b0.220.96 (0.68 to 1.37)
 Symptoms (+)80.0 (15.8)70.5 (17.2)83.2 (13.2)29.1b0.110.44 (0.25 to 0.70)
CKD-QOL
 CKD-QOL-6 (−)42.9 (7.9)51.8 (8.6)42.3 (6.7)77.3b0.251.16 (0.87 to 1.60)
 CKD-QOL-CAT (−)41.2 (9.4)52.1 (8.0)41.1 (8.5)95.0b0.291.42 (1.07 to 1.97)c
 Three- or six-item CAT (−)41.9 (8.8)52.2 (8.4)41.5 (8.0)89.3b0.291.34 (0.99 to 1.86)
SF-12v2
 PCS (+)43.6 (10.5)36.6 (10.1)45.5 (10.6)35.3b0.130.53 (0.32 to 0.91)c
 MCS (+)50.0 (10.1)49.6 (10.7)51.1 (10.0)0.80.000.01 (0.00 to 0.05)c
  • Means are unadjusted. 95% CI, 95% confidence interval.

  • a η2 estimate of variance explained by groups (see text); significance is same as F ratio.

  • b P<0.001 (see text).

  • c P<0.05 (see text).