Table 3.

Schedule of Enrollment, Intervention and Assessments

	STUDY PERIOD
	Eligibility Enrollment & Allocation		Post-allocation
Timepoint	Initial Screen	Baseline/ Enrollment (Day 0)	Inter-vention phase (Months 0–2)	Weekly Follow-Up (Weeks 1–52)	Follow-Up (Week 2)	Monthly Follow-Up (Months 1–12)	Follow-Up (Month 1)	Follow-Up (Month 2)	Follow-Up (Month 6)	Follow-Up (Month 12)
Informed consent	x	x
Demographics	x	x
Medical history & medications		x
Physical exam including objective outcomes		x						x
Inclusion/Exclusion criteria	x	x
Technology assessment**		x
Intervention administered all 4 arms (booster sessions allowable in month 3–12)			x
COVID − 19 impact		x						x	x	x
TUQ**		x					x	x
STarT Back screening tool status	x							x	x	x
Chronic LBP status (NIH research task force definition)	x	x							x	x
Chronic interference with daily activities	x	x							x	x
Low back pain intensity	x	x		x
Low back pain frequency		x		x
Pain trajectory		x								x
Implementation measures	x	x						x	x	x
Allocation/Randomization		x
Intervention uptake								x	x	x
Disability, PROMIS-29, healthcare and medication use, and productivity loss		x				x
Adverse events*		x	x			x
Satisfaction and global improvement								x	x	x
Healing Encounters and Attitudes List (HEAL) non-specific factors		x			x		x	x	x	x
Psychosocial mediators (self-efficacy, coping, kinesiophobia, and pain catastrophizing)		x						x	x	x
Participant close out										x

*Participants can also report adverse events to the PI’s or study staff at any point during the trial

** Technology Assessment and the Telehealth Usability Questionnaire (TUQ) will be administered to participants who are enrolled in the 2-arm study only. Tech Assessment may be administered to participants in the 4-arm study if applicable (e.g., preparing for a virtual SSM session)