From: Identifying factors of psychological distress on the experience of pain and symptom management among cancer patients
PSYCH variables
r
Pain presence
 Difficulty Concentrating
.30**
 Feeling Nervous
.26**
 Difficulty Sleeping
.19*
 Feeling Sad
.28**
 Worrying
.32**
 Feeling Irritable
.34**
Pain-related Distress
.22*