Prevalence and trends of pain associated with chronic diseases and personal out-of-pocket medical expenditures in Korea.

Korean J Pain · 2017 · PMC5392658 · PMID 28416998

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an increasing trendno p-value reported

Those with mild pain had an increasing trend of 2.1, 2.4, 2.8, 2.9, and 3.1 chronic diseases, and those with severe pain also had an increasing trend of 3.0, 3.4, 3.9, 4.2, and 4.4 chronic diseases ( P < 0.0001).

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