Table 3.

Inter-Scale Correlation Coefficients

Scale Correlation		Pearson Correlation Coefficient (r)
		Worst Pain	Least Pain	Average Pain	Current Pain
VAS	VRS-6	0.80**	0.72**	0.80**	0.82**
	FPS-R	0.80**	0.76**	0.80**	0.84**
	NRS-11	0.86**	0.83**	0.88**	0.91**
VRS-6	FPS-R	0.77**	0.74**	0.75**	0.80**
	NRS-11	0.82**	0.78**	0.80**	0.86**
NRS-11	FPS-R	0.82**	0.80**	0.78**	0.87**

Note: **P<0.001.

Abbreviations: FPS-R, Face Pain Scale-Revised; NRS, Numerical Rating Scale; VAS, Visual Analogue Scale; VRS, Verbal Rating Scale.