Table 1 Overview of the data collection

Demographic data

X

Primary outcomes

Functional status (ODI)

X

X

X

X

X

X

Pain intensity leg (NRS)

X

X

X

X

X

X

X

Pain intensity back (NRS)

X

X

X

X

X

X

X

Global perceived recovery (GPE)

X

X

X

X

X

General health status (SF-12)

X

X

X

X

X

X

Health related quality of life (EQ-5D)

X

X

X

X

X

X

Secondary outcomes

Psychosocial status (ÖMPSQ)

X

Fear avoidance beliefs (FABQ)

X

Expectations (CEQ)

X

X

Pain Coping (PCI)

X

Prognostic factors

Length/severity of complaints

X

Surgical complications

X

Economic evaluation

Absence from work (PRODISQ)

X

X

X

Cost questionnaire

X

X

X