TABLE 2.

Pressure pain threshold for classes of impairment.

		Mean (SD)	p
DC/TMD Axis II
Pain-related disability	Low (n = 9)	3.8 (1.3)	0.045*
	High (n = 15)	2.6 (1.1)
Depression	Minimal–mild (n = 16)	3.5 (1.3)	0.023*
	Moderate–severe (n = 8)	2.3 (1.0)
Anxiety	Minimal–mild (n = 19)	3.1 (1.3)	0.749
	Moderate–severe (n = 5)	2.9 (1.3)
Non-specific physical symptoms	Minimal–mild (n = 13)	3.4 (1.4)	0.213
	Moderate–severe (n = 11)	2.7 (1.1)
NPRS	Mild–moderate 3–6 (n = 12)	3.0 (1.3)	0.954
	Severe 7–10 (n = 12)	3.1 (1.3)
Catastrophizing	Not present (n = 12)	3.2 (1.4)	0.427
	Present (n = 12)	2.8 (0.9)
Central sensitization	Subclinical–mild (n = 12)	3.3 (1.5)	0.564
	Moderate–severe (n = 12)	2.9 (0.9)

n, number; SD, standard deviation; DC/TMD Axis II, Diagnostic Criteria for Temporomandibular Disorders Axis II; NPRS, Numeric Pain Rating Scale. *p < 0.05.