• Jemma Todd, Brydee Pickup, and Louise Sharpe.
• School of Psychology, University of Sydney, Sydney, Australia.
• Pain. 2024 Feb 1; 165 (2): 357364357-364.

AbstractMost theories of pain emphasize cognitive factors in the development of chronicity, but they have rarely been studied in the context of the transition from acute to chronic pain. The aim of the present study was to assess the role of interpretation bias, pain anxiety, and pain avoidance in acute and chronic pain and the transition from acute to chronic pain. Study 1 recruited a sample of N = 85 adults with chronic pain. Study 2 recruited a sample of N = 254 adults with acute pain and followed them up 3 months later. Both studies assessed interpretation bias with the word association task, as well as measuring pain-related anxiety, pain avoidance, pain severity, and pain interference. In study 2, pain outcomes at 3 months were also assessed. Across both acute and chronic pain samples, interpretation bias was associated with pain interference, but not pain severity. Path analysis mediation models for study 2 showed that interpretation bias was associated with increased pain anxiety, which predicted both pain severity and pain interference 3 months later. Pain anxiety was also associated with pain avoidance, but pain avoidance did not predict pain outcomes. This research provides further insight into the transition from acute to chronic pain, suggesting that interpretation bias in acute pain may play a role in pain-related anxiety that drives pain interference, thus maintaining chronic pain. These findings hold promise for further research into potential large-scale preventative interventions targeting interpretation bias and pain anxiety in acute pain.Copyright © 2023 International Association for the Study of Pain.

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