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. 2011 May 12;9:32. doi: 10.1186/1477-7525-9-32

Table 2.

Criterion validity: correlations between the CPQ scores and variable pain (Question 3, RDC/TMD Axis II) for TMD groups

TMD groups		Pain variable

		r^a	P
CPQ_8-10	Total scale	0.14	0.089
n = 141	Subscales
	Oral symptoms	0.13	0.106
	Functional limitations	0.18	0.024
	Emotional well-being	0.06	0.476
	Social well-being	0.09	0.278

CPQ_11-14	Total scale	0.32	< 0.0001
n = 176	Subscales
	Oral symptoms	0.33	< 0.0001
	Functional limitations	0.26	0.000
	Emotional well-being	0.24	0.001
	Social well-being	0.27	0.000

TMD, temporomandibular disorder; CPQ, child perceptions questionnaire

^aSpearman's correlation coefficient