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- Title
Persistency with medical treatment for glaucoma and ocular hypertension in the United Kingdom: 1994–2005.
- Authors
Owen, C. G.; Carey, I. M.; de Wilde, S.; Whincup, P. H.; Wormald, R.; Cook, D. G.
- Abstract
PurposeTo examine trends and demographic factors affecting persistence with ocular hypotensive therapy, from a period before prostaglandins were available to when they were the most common therapy.MethodsComputerised patient records from 94 general practices across the Unitd Kingdom, identified 5670 registered patients newly prescribed an ocular hypotensive drug (1993–2005). Persistence was defined as continuing therapy without a 90-day gap in prescription for (i) any ocular hypotensive and (ii) initial monotherapy. Time to failure with the treatment was compared using proportional hazard analyses, adjusted for age, gender, practice, year of initial treatment, and a sociodemographic indicator. Study findings were set in the context of a review of the literature.ResultsPercentage persistent at 1-year rose after 1997 when prostaglandins were introduced; from 61% in 1994–1996 to 70% in 2002–2004. Persistence with any treatment did not differ between those initiated on β-blockers compared to prostaglandins (1.05, 95% CI 0.93–1.17). However, 20% of subjects initiated on β-blockers received a prostaglandin by 1 year. Conversely, 8% of those initiated on prostaglandins received a β-blocker. When failure with initial therapy was considered, β-blockers appeared worse (1.35, 95% CI 1.21–1.50); this was consistent with findings from six studies in the review (1.40, 95% CI 1.34–1.46). Neither gender nor social factors were associated with persistence, but younger subjects (35–64 years) were significantly more likely to fail as were those over 85 years.ConclusionsIntroduction of prostaglandins may explain an improvement in persistence over a decade. However, whether the higher cost of initiating patients on prostaglandins is justified remains questionable unless clinically indicated.Eye (2009) 23, 1098–1110; doi:10.1038/eye.2008.213; published online 11 July 2008
- Subjects
UNITED Kingdom; GLAUCOMA treatment; ANTIHYPERTENSIVE agents; PATIENT compliance; SOCIODEMOGRAPHIC factors; PROSTAGLANDINS; DRUG utilization
- Publication
Eye, 2009, Vol 23, Issue 5, p1098
- ISSN
0950-222X
- Publication type
Article
- DOI
10.1038/eye.2008.213