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Table 2 Construct Validity: Spearman Correlations of the PROMIS-PF and Worst Stiffness NRS item with Other Related Measures (Baseline)

From: Psychometric properties of a custom Patient-Reported Outcomes Measurement Information System (PROMIS) physical function short form and worst stiffness numeric rating scale in tenosynovial giant cell tumors

Measures PROMIS-PF Worst Stiffness
Missing N N Corr. Missing N N Corr.
PROMIS-PF 6 114 −0.45***
Worse Stiffness NRS 6 114 −0.45***
BPI 6 114 −0.52*** 6 114 0.83***
EQ-5D-5L
 Mobility 19 101 −0.63*** 20 100 0.37***
 Self-care 19 101 −0.46*** 20 100 0.30**
 Usual activities 19 101 −0.67*** 20 100 0.31**
 Pain/discomfort 19 101 −0.48*** 20 100 0.47***
 Anxiety/depression 19 101 −0.23* 20 100 0.28**
 Index Score 19 101 0.62*** 20 100 −0.54***
 VAS 19 101 0.47*** 20 100 −0.21*
 Tumor Volume Score 5 115 −0.06 18 112 0.08
 Range of Motion measurement 4 116 0.35*** 17 113 −0.31***
  1. *p < 0.05; **p < 0.01; ***p < 0.001