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Table 3 Spearman’s correlation coefficient rs for construct validity and known groups validity (n = 52)

From: Cross-cultural adaptation and psychometric properties of the Dutch version of the Hand Function Sort in patients with complaints of hand and/or wrist

  Spearman’s correlation coefficient rs HFS-DLV* 95% CI P value Predefined hypothesis Hypothesis accepted
QuickDASH −0.73 − 0.57 to − 0.84 < 0.001 0.51–1.00 (strong-very strong) yes
PRWHE − 0.62 − 0.42 to − 0.77 < 0.001 0.51–1.00 (strong-very strong) yes
PDI − 0.68 − 0.50 to − 0.80 < 0.001 0.26–0.75 (moderate-strong) yes
WAS 0.61 0.40 to 0.76 < 0.001 0.26–0.75 (moderate-strong) yes
RAND-36 physical functioning 0.58 0.37 to 0.74 < 0.001 0.26–0.75 (moderate-strong) yes
RAND-36 vitality 0.57 0.35 to 0.73 < 0.001 0.00–0.50 (weak-moderate) no
NRS pain −0.52 −0.29 to − 0.70 < 0.001 0.00–0.50 (weak-moderate) no
RAND-36 social functioning 0.44 0.19 to 0.64 0.001 0.00–0.50 (weak-moderate) yes
RAND-36 mental health 0.43 0.17 to 0.63 0.002 0.00–0.25 (weak) no
HFS-DLV: median score (IQR) P value Predefined hypothesis
Male (n = 19) Female (n = 33)    
182 (110–207) 151 (111–195) 0.38 male > female no
Employed (n = 35) Unemployed (n = 17)    
171 (136–200) 129 (63–185) 0.077 employed > unemployed no
Non-dominant affected (n = 9) Dominant side affected (n = 43)    
166 (109–206) 151 (126–208) 0.521 non-dominant side affected > dominant side affected no
  1. 95% CI 95% confidence interval, HFS-DLV Hand Function Sort-Dutch Language Version, QuickDASH Quick Disabilities of the Arm, Shoulder, and Hand Outcome Measure, PRWHE Patient Rated Wrist/Hand Evaluation, PDI Pain Disability Index, WAS Work Ability Score, NRS pain Numeric Pain Rating Scale, IQR interquartile range