Longitudinal associations of chronic pain severity trajectories and number of pain site trajectories with risk of limitations in ability in daily activities: Evidence from two 10-year prospective cohort studies.

J Nutr Health Aging · 2026 · PMC12835589 · PMID 41544571

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an increasing trendno p-value reported

This trajectory requires the pain intensity to show an increasing trend over four cycles and to span at least three pain levels to ensure the characteristic of pain worsening.

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