Goldstein 2002.

Population (low back pain description; location; setting; data collection period)	Randomized Controlled Trial: People who sought care for low back pain from their health maintenance organization provider; United States of America; Primary care; October 30th 1995 ‐ November 9th 1998
Sample size	681
Prognostic factor (type, measure(s) of individual recovery expectations)	TREATMENT: Treatment confidence, Numeric Rating Scale (0 ‐ 10)
Notes	Funding Source: Not reported Conflict of Interest: Not reported