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Table 6 Validity of the KOOS for the patient group with severe OA

From: The Dutch version of the knee injury and osteoarthritis outcome score: A validation study

  KOOS Pain KOOS Symptoms KOOS ADL KOOS Sport/Rec KOOS QOL
SF-36 Subscale      
BP 0.57* 0.55 0.72 0.37 0.47
PF 0.36 0.27 0.54* 0.12 0.22
SF 0.36 0.42 0.33 0.12 0.49
RF 0.28 0.21 0.37 0.04 0.32
RE 0.13 0.18 0.28 -0.04 0.25
MH 0.11 0.12 0.36 -0.07 0.18
VT 0.26 0.24 0.46 0.10 0.29
GH 0.14 0.03 0.21 -0.11 0.16
VAS for pain -0.28* -0.43 -0.29 -0.19 -0.19
  1. Validity is expressed by Spearman correlations between KOOS subscales, SF-36 subscales and VAS-pain. Abbreviations: OA; osteoarthritis, BP, bodily pain; PF, physical function; SF, social function; RF, role limitations because of physical problems; RE, role limitations because of emotional problems; MH, mental health; VT, vitality; GH, general health perception, ADL; Activities of daily living, QoL; Quality of life. In bold: convergente correlations that should be ≥ 0.60, In Italic: divergente correlations that should be ≤ 0.30. All other hypotheses are expected to be between 0.30 and 0.60. Correlations marked by * have to be 0.05 higher than the other convergent correlations.