Table 3.

Summary of Direct and Indirect Effects for Models in which Associations Between Sleep Disturbance and Chronic Pain Intensity Are Mediated by Psychosocial Factors.

			Bootstrap 95% Confidence Intervals forIndirect Effects
Outcome	Mediator	Direct Effect of Sleep Disturbance	Lower	Upper
MPQ-Sensory	BDI	p = .006	0.023	0.227
	STAI	p = .002	−0.016	0.174
	PANAS-PA	p < .001	−0.044	0.109
	CATS	p = .005	−0.017	0.220
MPQ-Affective	BDI	p = .059	0.017	0.133
	STAI	p = .037	0.014	0.118
	PANAS-PA	p = .009	0.006	0.083
	CATS	p = .102	0.019	0.138
VAS Intensity	BDI	p < .001	0.067	0.543
	STAI	p < .001	−0.151	0.320
	PANAS-PA	p < .001	−0.055	0.322
	CATS	p < .001	0.108	0.693

Note: Each row represents a unique analysis testing a single mediator. Bootstrap 95% confidence intervals that do not contain zero are significant at p<0.05 (in bold). MPQ = McGill Pain Questionnaire–Short Form (Past Month), BDI = Beck Depression Inventory, STAI = State Trait Anxiety Inventory, PANAS-PA = Positive Affect subscale of the Positive and Negative Affect Schedule, CATS = Pain Catastrophizing Scale