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Title: The Prevalence and Correlates of Self-reported Non-adherence: The Belgian Compliance Study in Ophthalmology (BCSO)
Authors: Vandenbroeck, Sofie
De Geest, Sabina
Dobbels, Fabienne
Fieuws, Steffen
Stalmans, Ingeborg
Zeyen, Thierry # ×
Issue Date: Sep-2011
Publisher: Lippincott Williams & Wilkins
Series Title: Journal of Glaucoma vol:20 issue:7 pages:414-421
Abstract: PURPOSE:

This study aimed to investigate (1) the prevalence of nonadherence with eye drop treatment; (2) selected correlates of nonadherence at the patient and health-care organization level; and (3) the diagnostic value of the ophthalmologists' ratings, using patients' self-reports as standard.

METHODS:

This cross-sectional multicenter survey used questionnaires for ophthalmologists and their patients to assess self-reported nonadherence and its correlates. One item, using a 4-point scale [never (ie, adherent) to daily], asked the patients whether they had forgotten to administer eye drops during the past 2 weeks. Ophthalmologists rated their patients as adherent or nonadherent. Nonadherence was also determined by combined methods, whereby either could indicate nonadherence. Given the nested structure of the data, multilevel modeling was used to investigate self-reported nonadherence-correlates. Diagnostic values of ophthalmologists' report were calculated.

RESULTS:

Of 663 patients (48% female, 44% >69 years), nonadherence was indicated in 39.2% (n=260) through self-reporting, 2.1% (n=14) through ophthalmologists' ratings, and 40% (n=266) through combined measures. The multivariable, multilevel model showed following significant nonadherence-correlates: Male sex (P=0.01), younger age (P=0.027), and higher-dose frequency (P=0.001). No significant correlation with treating ophthalmologist (P=0.21) could be seen. Yet, the patients visiting their ophthalmologists at least every 3 months were less nonadherent than patients with fewer consultations (P=0.01). The ophthalmologists' report showed a sensitivity and specificity of 3% and 98.5%, respectively.

CONCLUSIONS:

The prevalence of self-reported nonadherence was congruent with literature. The patients visiting their ophthalmologists at least every 3 months have a lower risk of nonadherence. Ophthalmologist report is an insensitive method for detecting nonadherence.
ISSN: 1057-0829
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Academic Centre for Nursing and Midwifery
Research Group Ophthalmology
Leuven Biostatistics and Statistical Bioinformatics Centre (L-BioStat)
Interfaculty Centre for Biomedial Ethics and Law
× corresponding author
# (joint) last author

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