For the study, researchers accessed the Mayo Clinic Total Joint Registry to assess the association of income with knee function and moderate to severe pain as reported by 100,000 patients at follow-up appointments after knee replacement.
The researchers found that those making $35,000 or less rated their overall improvement in knee function “better” more often at their two-year follow-ups than those who earned more and were also less likely to report moderate to severe pain, suggesting low income is not linked to poorer quality outcomes.
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