Table 5.

Correlations between EORTC QlQ-C30 and scales/items PA-QoL.

EORTC QLQ-C30	Scales				Single items
	1	2	3	4
	Physical and mental fatigue	Anxiety and stress	Fluid balance	Other complaints	Snoring	Impatience
Physical functioninga	−0.77**	−0.37*	−0.47**	−0.67**	−0.18	−0.51**
Role functioninga	−0.77**	−0.52**	−0.45**	−0.61**	−0.16	−0.43**
Emotional functioninga	−0.78**	−0.53**	−0.48**	−0.73**	−0.29	−0.65**
Cognitive functioninga	−0.73**	−0.54**	−0.50**	−0.74**	−0.46**	−0.68**
Social functioninga	−0.72**	−0.63**	−0.38**	−0.52**	−0.33*	−0.66**
Global QoL/health status	−0.63**	−0.58**	−0.41**	−0.63**	−0.33*	−0.51**
Fatigue	0.87**	0.45**	0.45**	0.75**	0.21	0.50**
Nausea/vomiting	0.54**	0.30*	0.30*	0.39**	0.20	0.26
Pain	0.60**	0.29	0.13	0.36*	0.06	0.30*
Dyspnea	0.63**	0.26	0.27	0.52**	0.06	0.30*
Sleep/insomnia	0.60**	0.52**	0.33*	0.49**	0.32*	0.42**
Appetite loss	0.51**	0.34*	0.43**	0.52**	0.33*	0.58**
Constipation	0.07	−0.05	0.04	0.15	0.26	−0.06
Diarrhea	0.27	0.18	0.20	0.26	0.06	0.24
Financial difficulties	0.28	0.32*	0.30*	0.27	0.27	0.19

<0.40 weak correlation, 0.40–0.60 moderate and >0.60 high.

^aA high score for these functional scales represents a high/healthy level of functioning; *P < 0.05; **P < 0.01.