Table 2.

Spearman rank correlations between different scales

		Pain verbal scale	Pain hand scale	Pain faces scale	Pain Jerrycan scale
Pain verbal scale	r	1	0.88	0.82	0.73
	p		0.001*	0.001*	0.001*
	N	314	314	314	313
Pain hand scale	r	0.88	1	0.85	0.76
	p	0.001*		0.001*	0.001*
	N	314	315	315	314
Pain faces scale	r	0.82	0.85	1	0.79
	p	0.001*	0.001*		0.001*
	N	314	315	315	314
Pain Jerrycan scale	r	0.73	0.76	0.79	1
	p	0.001*	0.001*	0.001*
	N	313	314	314	314
		Symptom verbal scale	Symptom hand scale	Symptom faces scale	Symptom Jerrycan scale
Symptom verbal scale	r	1	0.88	0.81	0.72
	p		0.001*	0.001*	0.001*
	N	314	314	313	312
Symptom hand scale	r	0.88	1	0.85	0.77
	p	0.001*		0.001*	0.001*
	N	314	314	313	312
Symptom faces scale	r	0.81	0.85	1	0.82
	p	0.001*	0.001*	0	0.001*
	N	313	313	313	311
Symptom Jerrycan scale	r	0.72	0.77	0.86	1
	p	0.001*	0.001*	0.001*
	N	312	312	311	312

*Correlation is significant at p < 0.001.