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Journal of Patient-Reported Outcomes

Table 4 Results for different calculations of Minimal Important Change (absolute values)

From: Measurement properties of PROMIS short forms for pain and function in patients receiving knee arthroplasty

 

Correlationa between baseline and follow-up scores

MICROCb

MICpredb

MICadjb

PAIN

0.20 (p = 0.02)

10.01 (5.50 to 17.85)

12.92 (10.48 to 15.38)

7.15 (3.67 to 10.92)

PI

0.38 (p = 0.00)

8.31 (4.90 to 11.35)

8.76 (6.22 to 10.88)

3.53 (0.09 to 6.61)

PF

0.56 (p = 0.00)

8.38 (5.75 to 9.35)

8.12 (7.10 to 9.14)

5.65 (4.26 to 7.13)

  1. MICROC minimal important change determined with the receiver operating characteristic (ROC) curve; MICpred predicted MIC; MICadj adjusted predicted MIC; PAIN pain intensity; PI pain interference; PF physical function
  2. aPearson correlation coefficient, r
  3. bResults are given as the mean MIC and 95% confidence interval after bootstrapping (n = 1000)
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