Validity of the work productivity and activity impairment questionnaire--general health version in patients with rheumatoid arthritis.

Arthritis Res Ther · 2010 · PMC2991008 · PMID 20860837

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highly significantno p-value reported

For the correlation analysis between the WPAI productivity outcomes and the health status outcomes, all the correlations were in the logical direction and were highly significant (Table 3 ).

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