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Table 4 Validity of the KOOS for the patient group with mild 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 0.60* 0.44 0.63 0.41 0.38
PF 0.64 0.53 0.63* 0.46 0.56
SF 0.23 0.13 0.25 0.09 0.26
RF 0.28 0.37 0.35 0.36 0.40
RE 0.31 0.24 0.19 0.25 0.24
MH 0.42 0.20 0.42 0.30 0.38
VT 0.42 0.27 0.37 0.34 0.31
GH 0.34 0.28 0.35 0.30 0.30
VAS for pain -0.79* -0.71 -0.78 -0.57 -0.59
  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.