Effectiveness of the addition of therapeutic alliance with minimal intervention in the treatment of patients with chronic, nonspecific low back pain and low risk of involvement of psychosocial factors: a study protocol for a randomized controlled trial (TalkBack trial)

Table 1 Timeline for the schedule of enrollment, interventions and assessments

Results	Recruitment	Before randomization	Post baseline (after first session)	Intervention period	Reassessment 1 month after randomization	Reassessment 6 months after randomization	Reassessment 12 months after randomization
Eligibility criteria	X
Demographic data	X
Informed consent	X
Primary outcomes
Pain intensity		X			X
Specific disability		X			X
Secondary outcomes
Pain intensity						X	X
Specific disability						X	X
General disability		X			X	X	X
Global perceived effect		X			X	X	X
Additional outcomes
Empathy			X
Credibility			X
Expectation			X
Interventions
Increased therapeutic alliance				X
Usual treatment				X
Control group				X

ISSN: 1745-6215