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HNO

, Volume 57, Issue 9, pp 889–895 | Cite as

Entwicklung und Validierung des Chronic Otitis Media Outcome Test 15 (COMOT-15)

Messung der gesundheitsbezogenen Lebensqualität bei chronischer Otitis media
  • I. BaumannEmail author
  • B. Kurpiers
  • P.K. Plinkert
  • M. Praetorius
Originalien

Zusammenfassung

Hintergrund

Nach klinischer Erfahrung beeinträchtigt die chronische Otitis media (COM) die gesundheitsbezogene Lebensqualität („health-related quality of life“, HR-QOL) der betroffenen Patienten. Es existiert bisher aber kein Messinstrument, das alle relevanten Dimensionen der HR-QOL bei COM in die Auswertung einbezieht.

Material/Methoden

Zur Entwicklung des Chonic Otitis Media Outcome Test (COMOT) in Phase 1 gehörte die Itemreduktion von 31 auf 15 mittels sequenzieller statistischer Analyse der Daten von 50 Patienten vor Tympanoplastik (COMOT-15). Neben dem Gesamtscore (GS) wurden die Subscores Ohrsymptomatik (OS), Hörfunktion (HF) und psychisches Befinden (PB) konstruiert. Für die Validierung in Phase 2 wurden Reliabilität, Validität und Responsivität an 121 prospektiv evaluierten Patienten bestimmt.

Ergebnisse

Der COMOT-15 kann Patienten mit COM von Ohrgesunden unterscheiden. Er wies eine sehr gute Reliabilität mit hoher interner Konsistenz (Cronbach-α 0,89–0,91) und hoher Retest-Reliabilität (alle r>0,8) auf. Die Inhaltsvalidität wurde auf der Basis einer Literaturstudie überprüft. Die globale Einschätzung der Beeinträchtigung der HR-QOL durch die Patienten korrelierte sehr gut mit den Scores des COMOT-15. Die Responsivität des Fragebogens war gering.

Fazit

Der COMOT-15 ist ein reliables, valides und sensitives Instrument zur Messung der HR-QOL bei COM. Für den Untersucher sind die Ergebnisse gut interpretierbar. Das Instrument sollte in der otologischen Outcome-Forschung eingesetzt werden.

Schlüsselwörter

Validität Reliabilität Responsivität Tympanoplastik Gesundheitsbezogene Lebensqualität 

Development and validation of the Chronic Otitis Media Outcome Test 15 (COMOT-15)

Measurement of health-related quality of life in patients with chronic otitis media

Abstract

Background

Clinical experience has shown that chronic otitis media (COM) affects health-related quality of life (HR-QOL) of the patients. Nevertheless, up to now no validated measurement instrument encompassing all the relevant dimensions of HR-QOL is available.

Material and methods

In phase 1 the development of the Chonic Otitis Media Outcome Test (COMOT) was conducted. A group of experts identified 31 HR-QOL concepts as being relative for COM which was reduced to 15 items (COMOT-15) by sequential statistical analysis on the basis of data from 50 consecutive COM patients. In addition to the overall score (GS), three sub-scores (ear symptoms, OS; hearing function, HF; and mental being, PB) were introduced. In phase 2 validation was performed by calculating reliability, validity, and responsiveness with the data of 121 prospectively evaluated patients.

Results

COMOT-15 showed an excellent reliability with high internal consistency (Cronbach’s ά from 0.89 to 0.91) and high retest reliability coefficients (all r>0.8). Content validity was determined by a study of the literature. COMOT-15 can distinguish COM patients from healthy subjects. Global assessment of impairment of HR-QOL by COM correlated very well with the scores of COMOT-15. However, the responsiveness of the COMOT-15 questionnaire was low.

Conclusions

COMOT-15 is a reliable, valid and sensitive instrument for measurement of HR-QOL of COM patients. The results obtained with the questionnaire can be interpreted very well by the investigator. COMOT-15 should be used in otological outcomes research.

Keywords

Validity Reliability Responsiveness Tympanoplasty Health-related quality of life 

Notes

Interessenkonflikt

Der korrespondierende Autor gibt an, dass kein Interessenkonflikt besteht.

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Copyright information

© Springer Medizin Verlag 2009

Authors and Affiliations

  • I. Baumann
    • 1
    Email author
  • B. Kurpiers
    • 1
  • P.K. Plinkert
    • 1
  • M. Praetorius
    • 1
  1. 1.Universitäts-HNO-KlinikHeidelbergDeutschland

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