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Multicenter Study
. 2002 Aug;86(8):840-2.
doi: 10.1136/bjo.86.8.840.

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

M D Nijkamp  1 , H J M Sixma, H Afman, F Hiddema, S A Koopmans, B van den Borne, F Hendrikse, R M M A Nuijts
Affiliations
Multicenter Study

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

M D Nijkamp et al. Br J Ophthalmol. 2002 Aug.

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 alpha), 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.

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Figures

Figure 1
Figure 1
Bland–Altman plot of agreement in importance scores between test and retest. The mean of the test and retest scores is plotted on the x axis and the differences between the two scores on the y axis. The horizontal interrupted lines represent the limits of agreement (within 2 SD from the mean).
See this image and copyright information in PMC

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