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MCID values with 95% CIs for (A) PROMIS PF and (B) PROMIS PI by BMI classification (underweight, n = 20; normal weight, n = 412; overweight, n = 444, obese, n = 361). BMI, body mass index; MCID, minimal clinically important difference; PROMIS, Patient-Reported Outcomes Measurement Information System; PF, physical function; PI, pain interference.
