highly significantp < 0.001
To further examine the construct validity of the FreSHAQ questionnaire, the degree of association with patient demographic characteristics but most importantly with other scales examining the clinical status of patients showed highly significant correlations ( p < 0.001) for both the 9 and 6-item versions of the FreSHAQ-GR with age, the PI-VAS, the SPADI, the QuickDASH, and the PCS.