Table 2 Cross-sectional correlations of the EORTC QLQ-C30 scales with anchors, and correlations between their change scores
From: Minimally important differences for the EORTC QLQ-C30 in prostate cancer clinical trials
Absolute scores | Change scores | ||||
|---|---|---|---|---|---|
Scale | Anchor | N (No) | Correlation | N (No) | Correlation |
Physical Functioning | Performance status | 1732 (8131) | −0.35 | 1445 (24420) | −0.3 |
Role Functioning | Performance status | 1732 (8130) | − 0.5 | 1445 (24462) | − 0.3 |
Social Functioning | Performance status | 1731 (8082) | −0.36 | 1445 (24204) | −0.2 |
Pain | Performance status | 1732 (8136) | −0.33 | 1445 (24502) | −0.13 |
Fatigue | Performance status | 1732 (8125) | −0.4 | 1445 (24436) | −0.2 |
Global Quality of Life | Performance status | 1728 (8036) | −0.33 | 1445 (23929) | −0.2 |
Diarrhoea | CTCAE Diarrhoea | 1587 (7108) | −0.45 | 1305 (20784) | −0.3 |