The researchers examined 1,169 patients with low back pain and followed 28 percent for three months after their first consultation. Expectations were measured on a zero to 10 scale.
The researchers found:
• Expectations associated with known prognostic factors, including low back pain history.
• Expectations had statistically significant associations with outcomes after adjusting for baseline factors.
• Expectations only explained a little of the variance in lower back pain.
• The prediction of global perceived effect was more substantial for patients treated by general practitioners than chiropractic practices.
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