Table 1.

Study variables

Instrument	Assessment area Time(s) of assessments	Applied by
Sampling form assistant	Age, sex, inclusion/exclusion criteria Baseline	Research
Sociodemographic data form assistant	Age, sex, marital status, educational level, Baseline	Research
	Socio-economic group [29], occupation
SPPI psychiatric interview psychiatrist [30]	Psychiatric diagnosis Baseline	Research
Pain catastrophizing scale [20] assistant	Severity of catastrophizing Baseline and follow-up sessions*	Research
Hamilton test for Depression assistant [31,32]	Severity of depression Baseline and follow-up sessions*	Research
Hamilton test for Anxiety assistant [33,34]	Severity of anxiety Baseline and follow-up sessions*	Research
Fibromyalgia Impact assistant Questionnaire [35,36]	General function Baseline and follow-up sessions*	Research
Medical record assistant	Pharmacological Follow-up sessions* side-effect events	Research
EQ-5D [37] assistant	Health related quality of life Baseline and follow-up sessions*	Research
CSRI [38] assistant	Health and social services use Baseline and follow-up sessions*	Research

*Follow-up sessions: 1, 3, and 6 months