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Abstract #45613 Published in IGR 13-2
Validation of a short version of the glaucoma medication self-efficacy questionnaire
Sleath B; Blalock SJ; Stone JL; Skinner AC; Covert D; Muir K; Robin ALBritish Journal of Ophthalmology 2011;
Aims: The aims of this study were: (1) to examine whether the original glaucoma medication adherence and eye drop technique self-efficacy scales could be shortened for easier use in practice settings; and (2) to validate these scales against objective medication adherence measures. Methods: Prospective study conducted at a single private practice site. We measured subjects' adherence to glaucoma medications through Medication Event Monitoring System (MEMS) devices and assessed eye drop instillation technique by video-recording. Principal components factor analysis and logistic and linear regression were used to analyse the data. Results: Our results yielded a 10-item Glaucoma Medication Adherence Self-Efficacy Scale that was strongly associated with subject adherence measured using MEMS ((beta) coefficient 8.52, 95% CI 1.94 to 15.1). In addition, the six-item Eye Drop Technique Self-Efficacy Scale was strongly associated with video-recorded subject eye drop installation technique (OR 10.47, 95% CI 1.78 to 61.63). Conclusions: Eye care providers and researchers could use these shorter scales to identify subjects with either poor glaucoma medication adherence and/or eye drop instillation technique. This could help to identify those who may benefit most from education and training on both adherence and eye drop instillation.
B. Sleath. Cecil G. Sheps Center for Health Services Research, Division of Pharmaceutical Outcomes and Policy,, . Email: betsy_sleath@unc.edu
Classification:
11.17 Cooperation with medical therapy e.g. persistency, compliance, adherence (Part of: 11 Medical treatment)
