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Br J Ophthalmol 2002;86:840-842 doi:10.1136/bjo.86.8.840
  • Value based ophthalmology

Quality of care from the perspective of the cataract patient: the reliability and validity of the QUOTE-Cataract

  1. M D Nijkamp1,2,
  2. H J M Sixma3,
  3. H Afman6,
  4. F Hiddema4,
  5. S A Koopmans5,
  6. B van den Borne2,6,
  7. F Hendrikse7,
  8. R M M A Nuijts1,7
  1. 1Eye Research Institute Maastricht (ERIM), Netherlands
  2. 2The Maastricht Health Research Institute for Prevention and Care (HEALTH), Netherlands
  3. 3Netherlands Institute for Health Services Research (NIVEL), Netherlands
  4. 4The Rotterdam Eye Hospital, Netherlands
  5. 5Department of Ophthalmology, University Hospital Groningen, Netherlands
  6. 6Department of Health Education, Maastricht University, Netherlands
  7. 7Department of Ophthalmology, University Hospital Maastricht, Netherlands
  1. Correspondence to: Marjan D Nijkamp, Eye Research Institute Maastricht, PO Box 5800, 6202 AZ Maastricht, Netherlands; MNij{at}SOOG.azm.nl
  • Accepted 2 May 2002

Abstract

Background/aims: To assess reliability and validity of the QUOTE-cataract, a questionnaire that measures the quality of care from the perspective of cataract patients.

Methods: The QUOTE-cataract was tested in a multicentre study among 540 cataract patients in three different hospitals. Reliability was represented by internal consistency (Cronbach’s α), and repeatability (intraclass correlation coefficient (ICC)). Validity was evaluated qualitatively and by factor analyses.

Results: A strong internal consistency coefficient (0.89), and high repeatability (ICC = 0.76) demonstrated good reliability. Content validity was assured by involvement of patients in the development of the questionnaire. Factor analysis confirmed an underlying taxonomy of generic and disease specific items.

Conclusion: The QUOTE-cataract has good reliability and provides a valid assessment of quality of care in cataract surgery.

Footnotes

  • The QUOTE-cataract questionnaire is available upon request.

  • Series editors: G and M Brown

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