Table 2.

Number of patients included in the outcome variables sick leave, disability and pain

Outcome variable	Successful (n)	Unsuccessful (n)	Missing values (n)	Total (n)
Sick leavea	121	40	114	275
Disabilityb	169	200	190	559
Painc	172	191	196	559

^aSuccessful if no longer on sick leave, unsuccessful if still on sick leave at 12-month follow-up

^bSuccessful if reduction ≥5 on the modified Roland Morris Disability Questionnaire, unsuccessful if <5 points reduction at 12-month follow-up

^cSuccessful if reduction ≥6 on the Numeric Pain Rating Scale, unsuccessful if <6 point reduction at 12-month follow-up