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Table 5 Construct validity. Pearson’s correlations between the HAAS-I and KOOS, NRS and SF-36 in subjects with total knee arthroplasty

From: Development of the Italian version of the High-Activity Arthroplasty Score (HAAS-I) following hip and knee total arthroplasty: cross-cultural adaptation, reliability, validity and sensitivity to change

Outcome measures

HAAS-I

p value

KOOS Symptoms

− 0.80

0.000

KOOS Pain

− 0.82

0.000

KOOS ADL

− 0.89

0.000

KOOS Sport/Rec

− 0.91

0.000

KOOS QoL

− 0.83

0.000

NRS

− 0.76

0.000

SF-36 Physical Function

0.28

0.032

SF-36 Physical Role

0.29

0.024

SF-36 Bodily Pain

0.21

0.099

SF-36 General health

0.13

0.328

SF-36 Vitality

0.21

0.097

SF-36 Social function

0.06

0.636

SF-36 Emotional Role

0.26

0.026

SF-36 Mental Health

0.01

0.994

  1. HAAS-I High-Activity Arthroplasty Score (Italian version), NRS numerical rating scale, KOOS Knee injury and Osteoarthritis Outcome Scale, SF-36 Short Form Health Survey 36 items