Knee Injury and Osteoarthritis Outcome Score - Child: Difference between revisions

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*6 questions on quality of life 
*6 questions on quality of life 


== Pschometric Properties  ==
== Psychometric Properties  ==
 
After the development of the KOOS - Child the psychometric properties were evaluated in 2014. This study looked at children who were seeking medical attention for knee symptoms between the ages of 7-16 years old. They looked at:
 
*Construct validity - All of the hypothesis were confirmed therefore this indicated that there was excellend consruct validity.
*Test-retest reliability - found that all test-retest's were excellent for all subscale except the symptoms scale which was slightly lower reliability. 
*Responsivness - a hypothesis of a correlation of  ≥ 0.3 between 
*Interperability




Revision as of 20:21, 20 November 2016

Introduction[edit | edit source]

The knee injury osteoarthritis score (KOOS) is an adult outcome measure used for assessing the patients perspectives of their knee pain and disability. This tool was developed initially to use on adults, which you can read about in more detail on this page. The KOOS pschometric properties have shown highly reliability, validity, and is responsive to change in subjects with knee degeneration or with a knee injury.[1] 

Development[edit | edit source]

Historially it was known that as there were no specific paediatric outcome measures for knee pain, therefore the KOOS for adults was being used on children. It was only in 2012 when a group of researchers decided to look at the use of the adult KOOS with children.[2] They conducted cognitive interviews with 34 sweedish children between the ages of 10 and 16 years old. Cognitive interviews has been found to be the gold standard methodology for assessing the flaws in surveys due to lack of comprehnasion of the subjects. [3][4][5]

It was highlighted form this study that children who had undergone knee surgery of physiotherapy had a greater understanding of the medical terminlogy than those who had not, therefore they had better comprehension of the KOOS for adults. It was recommended that due to this lack of comprehension in those who were not familiar with the terminology or younger children that the KOOS would need to be modified for them. This study did not identify a cut off age that the KOOS adult should be used but to recommend that comprehension was limited in younger children. [6]

The development of the KOOS - Child has lead to there being 5 sections with 39 questions in total. These catagories are split into:

  • Knee Problems
  • How Painful
  • Difficulty during daily activities 
  • Difficulty during sport and playing
  • How has your injury affected your life

Within these catagories there are:

  • 7 questions on symptoms
  • 8 questions on pain
  • 11 questions on activities 
  • 7 questions on sports and play, and 
  • 6 questions on quality of life 

Psychometric Properties[edit | edit source]

After the development of the KOOS - Child the psychometric properties were evaluated in 2014. This study looked at children who were seeking medical attention for knee symptoms between the ages of 7-16 years old. They looked at:

  • Construct validity - All of the hypothesis were confirmed therefore this indicated that there was excellend consruct validity.
  • Test-retest reliability - found that all test-retest's were excellent for all subscale except the symptoms scale which was slightly lower reliability. 
  • Responsivness - a hypothesis of a correlation of  ≥ 0.3 between 
  • Interperability


Uses

Scoring

Resources 

References

  1. ↑ Roos E M, Roos H P, Ekdahl C, Lohmander L S. Knee injury and Osteoarthritis Outcome Score (KOOS)—validation of a Swedish version. Scandinavian Journal of Medical Science and Sports 1998; 8:439-48.
  2. ↑ Örtqvist M1, Roos EM, Broström EW, Janarv PM, Iversen MD. Development of the Knee Injury and Osteoarthritis Outcome Score for children (KOOS-Child):Comprehensibility and content validity. Acta Orthopaedica 2012; 83(6): 666–673
  3. ↑ Willis G B, Royston P, Bercini D. The use of verbal report methods in the development and testing of survey questionnaires. Applied cognitive Psychology 1991; 5: 251-67.
  4. ↑ Willis G B. Cognitive interviewing: A tool for improving questionnaire design. Sage Publications, Thousand Oaks 2005
  5. ↑ Tourangeau R, Rips L J, Rasinski K. The psychology of survey response. Cambridge University Press, Cambridge 2002
  6. ↑ Örtqvist M1, Roos EM, Broström EW, Janarv PM, Iversen MD. Development of the Knee Injury and Osteoarthritis Outcome Score for children (KOOS-Child):Comprehensibility and content validity. Acta Orthopaedica 2012; 83(6): 666–673
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