Haldorsen 1998.

Population (low back pain description; location; setting; data collection period)	Randomized Controlled Trial: People who were employed and on sick leave for low back pain; Norway; Occupational; Data collection period not reported
Sample size	223
Prognostic factor (type, measure(s) of individual recovery expectations)	GENERAL (2): Do you believe that you will be back to work after a couple of weeks? (5 pts), and Do you believe your complaints will be less during the first couple of weeks? (5 pts) SELF‐EFFICACY: If you continue working, what effect will that have on your complaints? (5 pt)
Notes	Funding Source: The Royal Norwegian Department of Health and Social Affairs Conflict of Interest: None declared