Income and patient-reported outcomes (PROs) after primary total knee arthroplasty.

Income and outcomes after primary TKA State outcomes For unadjusted models, the lowest income category (≤ US$35, 000) was associated with significantly lower odds of moderate to severe pain ( P = 0.01) and moderate to severe activity limitation at 2 years ( P = 0.04) and borderline significant association of the US$35, 000 to 45, 000 income category with lower odds of moderate to severe pain at 2 years, compared with the highest income category ( P = 0.06; Table 3 ).

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In addition, activity limitations were lesser in lower income categories compared to the highest income category, although they did not reach statistical significance.

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