Niemisto 2004.

Population (low back pain description; location; setting; data collection period)	Randomized Controlled Trial: Employed people with low back pain (with or without sciatica) of at least 3 months’ duration with a score of > 16% on the Oswestry Disability Index; Finland; General; Data collection period not reported
Sample size	204
Prognostic factor (type, measure(s) of individual recovery expectations)	GENERAL: Self‐rated prognosis for ability to work after 2 years (1 ‐ 7)
Notes	Funding Source: Not reported Conflict of Interest: Not reported aStudy includes a recovery outcome based on categorisation of work, pain, and/or function outcomes