Henschke 2008.

Population (low back pain description; location; setting; data collection period)	Randomized Controlled Trial: Consecutive patients with non‐specific low back pain < 2 weeks duration recruited from the clinics of general practitioners, physiotherapists, and chiropractors; Australia; Primary care; November 2003 ‐ July 2005
Sample size	969
Prognostic factor (type, measure(s) of individual recovery expectations)	GENERAL: Perceived risk of persistence (0 ‐ 10)
Notes	Funding Source: National Health and Medical Research Council Conflict of Interest: None declared aStudy includes a recovery outcome based on categorisation of work, pain, and/or function outcomes