TABLE 1.

Internal Consistency Reliability of Study Variables

Variable	Number of Items	Reliability	Scales or Items
Outcomes
Functional status	11	0.82	BPI interference (7 items), SF12 (2 scales), QOL, KPS
Pain	5	0.9	BPI (4 items), PPQ (1 item)
Pain-related distress	4	0.76	Distress Thermometer, MSAS, PPQ (2 items)
Perceived control
Pain catastrophizing	13	0.92	Pain Catastrophizing Scale (13 items)
Cognitive control	10	0.8	Survey of Pain Attitudes Control Subscale (10 items)
Pharmacologic control	7	0.68	Perceived Control Scale (7 items)
Feelings of control	3	0.71	PPQ (1 item), demo (2 items)
Intervention component
Medication management	35	0.85	PSMQ items plus items from the PPQ and BQ
Pain advocacy	22	0.8	PSMQ items plus items from the BQ
Living with pain	15	0.82	PSMQ items plus items from CPAQ

BPI—Brief Pain Inventory; BQ—Barrier Questionnaire; CPAQ—Chronic Pain Acceptance Questionnaire; KPS—Karnofsky Performance Status; MSAS—Memorial Symptom Assessment Scale; PPQ—Patient Pain Questionnaire; PSMQ—Pain Self-Management Questionnaire; QOL—quality of life; SF12—Short-Form 12 Physical and Mental Health Composite