Table 3.

Instruments and schedule of assessments

Instrument	Abbreviation	Domain	Scale/subscale reliability (Cronbach’s α)	Interpretationa	Baseline	Week 1	Week 3	Week 6
Demographic Questionnaire	DEMO	Sociodemographic and clinical characteristics	N/A	N/A	X
Pain Catastrophizing Scale	PCS	Pain catastrophizingb	Total score 0.75 Rumination 0.87 Magnification 0.60 Helplessness 0.79	Low	X	X	X	X
Brief Pain Inventory	BPI	Pain interference and severity	Interference 0.89–0.92 Severity 0.80–0.87	Low	X	X	X	X
Patient Health Questionnaire–9 items	PHQ-9	Depression	Total score 0.87	Low	X	X	X	X
Patient-Reported Outcome Measurement Information System	PROMIS	Physical and psychological health	Mental and physical 0.73–0.96	High	X	X	X	X
Mindful Awareness Attention Scale	MAAS	Mindfulness	Total score 0.87	High	X	X	X	X

N/A Not applicable

This table provides the list of questionnaires that will be administered to study participants. Additionally, this table provides details related to when each questionnaire will be administered; the questionnaire’s abbreviation, domain, and psychometrics; and how the questionnaire should be interpreted

^aScores representing “improved” functional health status

^bPrimary outcome