Table 1.

Sequence of trial measurements for primary and secondary outcomes

	Baseline	Intervention	Week 12	Week 24	Week 52
Time (months)	−1	1-3	3	6	12
Primary outcome variable
FIQRa	x	x	x	x	x
Secondary outcome variables
Widespread Pain Index	x		x	x	x
Symptom Severity Scale	x		x	x	x
Participant Global Assessment	x		x	x	x
Pittsburgh Sleep Quality Index	x		x	x	x
Patients’ Global fibromyalgia Severity	x		x	x	x
SF-36	x		x	x	x
Beck II Depression Inventory	x		x	x	x
Perceived Stress Scale	x		x	x	x
Chronic Pain Self-Efficacy	x		x	x	x
Social Support Survey	x		x	x	x
Coping Strategies Questionnaire	x		x	x	x
MOS Social Support Survey	x		x	x	x
OES for exercise	x		x	x	x
OES for Tai Chi/AE		x
PROMISb	x		x	x	x
Health Assessment Questionnaire	x		x	x	x
NEO Five-Factor Inventoryc	x		x	x	x
Five Facet Mindfulness	x		x	x	x
Credibility-Expectancyd	x			x	x
Pre-clinical disability	x		x	x	x
The Hospital Anxiety and Depression Scale	x		x	x	x
CHAMPS activities	x		x	x	x
Functional Performance Testse	x		x	x	x
Body mass index	x		x	x	x
Medications	x		x	x	x
Adverse events	x	x
Adherence	x	x	x	x	x

^aRevised Fibromyalgia Impact Questionnaire (FIQR) is the primary outcome at 24 weeks; the other collection times are secondary outcome variables. ^bParticipant-Reported Outcomes Measurement Information System (PROMIS) questionnaires include PROMIS Pain Impact, PROMIS Physical Function, PROMIS Depression, PROMIS Anxiety, PROMIS Sleep Disturbance, Satisfaction with Social Roles, and PROMIS Health Assessment Questionnaire. ^cThe NEO Five-Factor Inventory is given out once over the course of the study at the earliest available evaluation period. ^dThe Credibility-Expectancy Questionnaire is given out before the start of the first intervention session. ^eFunctional Performance Tests include timed chair stand, one leg stand, 6-minute walk, and muscle strength and power. AE, aerobic exercise; MOS, Medical Outcome Study; OES, Outcome Expectations Scale; SF-36, Medical Outcome Survey Short-Form 36; CHAMPS, Community Health Activities Model Program for Seniors