Table 3.

Correlation matrix among variables

Variables	QoL	Pain severity	Anxiety	Depression	Pain acceptance	Pain catastrophizing
QoL	1
Pain severity	− 0.321**	1
Anxiety	− 0.352**	0.135**	1
Depression	− 0.484**	0.154**	0.273**	1
Pain acceptance	0.409**	− 0.104*	− 0.3**	− 0.289**	1
Pain catastrophizing	− 0.426**	0.271**	0.252**	0.273**	− 0.295**	1
Sleep disturbance	− 0.367**	0.154**	0.338**	0.275**	− 0.356**	0.271**

^**Significant at level P < 0.01, *Significant at level P < 0.05