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Table 4 Correlation of PROMIS fatigue short forms with other PROMIS measures and other clinical disease indicators of RA

From: PROMIS Fatigue short forms are reliable and valid in adults with rheumatoid arthritis

PROMIS Fatigue Physical Function Participation Pain Interference Sleep Disturbance Anxiety Depression TJC28 SJC28 MD Patient CDAI ESR CRP (mg/L)
7a r -0.78 -0.81 0.78 0.65 0.63 0.67 0.34 0.19 0.32 0.59 0.47 0.21* 0.17*
N 546 548 548 546 546 546 345 346 343 547 340 219 254
8a r -0.78 -0.78 0.75 0.63 0.60 0.64 0.37 0.21 0.34 0.57 0.50 0.23 0.15**
N 546 548 548 546 546 546 345 346 343 547 340 219 254
4a r -0.77 -0.77 0.75 0.65 0.59 0.63 0.37 0.22 0.35 0.56 0.50 0.22 0.15**
N 546 546 546 546 546 546 343 344 341 545 338 219 252
  1. All p < 0.001 except *p < .005 and **p < .02