Table 3.

Post hoc analysis mood, pain catastrophizing, and pain disability among clusters subgroups.

	Cluster #	Cluster 2		Cluster 3
		Mean difference (S.E)	p	Mean difference (S.E)	p
DASS Total	1	6.8 (1.9)	0.002	13.3 (1.9)	0.002
	2			6.8 (1.4)	0.001
Depression	1	2.4 (0.7)	0.004	4.7 (0.7)	0.001
	2			2.3 (0.5)	0.001
Anxiety	1	2.3 (0.7)	0.003	4.6 (0.7)	0.001
	2			2.3 (0.5)	0.001
Stress	1	2.4 (0.7)	0.001	4.6 (0.7)	0.001
	2			2.1 (0.5)	0.001
PCS total	1	2.7 (1.6)	0.216	9.7 (1.6)	0.001
	2			7.0 (1.2)	0.001
Helplessness	1	1.0 (0.8)	0.363	4.3 (0.8)	0.001
	2			3.3 (0.6)	0.001
Magnification	1	0.7 (0.4)	0.174	2.4 (0.4)	0.001
	2			1.7 (0.3)	0.001
Rumination	1	0.9 (0.6)	0.228	3.1 (0.6)	0.001
	2			2.2 (0.4)	0.001
PDI	1	0.63 (1.9)	0.942	3.7 (1.0)	0.042
	2			3.1 (0.8)	0.034

Note. Bold values denote p < 0.05, S.E = standard error; DASS = Depression Anxiety Stress Scale; PCS = Pain Catastrophizing Scale; and PDI = Pain Disability Index.