Table 3.

Correlations between salivary cortisol, clinical pain, and psychosocial stress.

		Salivary Cortisol Measures
		Evening (T1) n = 102	Waking (T2) n = 105	45 min After Waking (T3) n = 103	Pre-QST (T4) n = 105	Post-QST (T5) n = 87	Slope (T1-T3) n = 100	AUC (T1-T5) n = 102
	Clinical Pain MeasuresGCPS CPI	0.06138	−0.22268*	0.02161	0.01825	−0.03894	−0.04206	−0.12530
	GCPS Disability	0.06143	−0.24494*	−0.10742	−0.06657	−0.07754	−0.18734	−0.17604
	Number of Pain Sites	0.00776	−0.16246	−0.00668	−0.02931	−0.01268	−0.02317	−0.09361
	Chronic Pain Burden IndexPsychosocial Stress Measures	0.04368	−0.20540*	−0.02820	−0.03688	−0.05246	−0.06650	−0.12776
	EOD	0.13062	−0.02968	−0.06534	−0.05933	0.11801	−0.03382	−0.04732
	SRE	0.10152	0.06937	0.00724	−0.12432	−0.14841	0.03211	0.08545
	PSS	0.00593	0.03209	−0.04884	0.03492	−0.06392	−0.10376	−0.00182
	Financial Satisfaction	−0.06242	0.31826*	0.33990*	0.11903	0.14378	0.41172**	0.30984*
	Material Satisfaction	−0.07460	0.28033*	0.15960	0.03642	0.07164	0.24397*	0.24339*

Clinical Pain Measures: GCPS CPI = Graded Chronic Pain Scale Characteristic Pain Intensity Score; GCPS disability = Graded Chronic Pain Scale Disability Score.

Psychosocial Stress Measures: EOD = Experiences of Discrimination; SRE = Schedule of Recent Experiences; PSS = Perceived Stress Scale.

Note: T1 = first collection; T2 = second collection; T3 = third collection; T4 = fourth collection; T5 = fifth collection; Slope (T1-T3) = slope of evening, waking and 45 min after waking; AUC (T1-T5) = Area Under the Curve over all 5 time points.

*P < 0.05; **P < 0.001.