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Revista Española de Salud Pública

Print version ISSN 1135-5727

Abstract

SANFELIX-GIMENO, Gabriel  and  GRUPO IUM-SNS et al. Population Analysis by Area of Health of Changes in Consumption, Price and Expenditure of Cardiovascular Drugs in Eight Autonomous Communities, Spain, 2005. Rev. Esp. Salud Publica [online]. 2010, vol.84, n.4, pp. 389-407. ISSN 1135-5727.  http://dx.doi.org/10.1590/S1135-57272010000400004.

Background: Variability in cardiovascular drugs is of great interest because of its high population use, its high expenditure and the availability of strong evidence supporting its use. The aim of this study is to describe variation in dispensation, price and pharmaceutical expenditure for 11 subgroups of cardiovascular drugs by healthcare areas. Methods: This was a population study describing dispensation for 11 subgroups of cardiovascular drugs among healthcare areas in 2005. Population: 93 healthcare areas of the 8 participant Autonomous Regions. Analysis: Descriptive analysis of dispensation (Defined Daily Dose (DDD) per 1,000 pensioners and day (DDD/1000P/Day), average price (euros per DDD), pharmaceutical expenditure (euros per 100 pensioners) and standardized consumption ratios. Small-area variation analysis was used to analyze observed variability. Results: Consumption of cardiovascular drugs oscillated between 324 DDD/1000p/Day for drugs with action on the renin-angiotensin system, and 6.5 DDD/1000p/Day for anti-aldosterone diuretics. Variation in consumption for areas in the 5th and 95th percentiles went from 1.8 times (digitalics) to 17.2 times (flavonoids), although most of the groups showed an extremal quotient of around 5. Variation in average prices was lower than in consumption (1.1 times for doxazosin and 3.7 for flavonoids) and variations in pharmaceutical expenditure was similar to variation in consumption (from 2.0 times for digitalics to 13.0 times for flavonoids). Conclusions: Major variations in the consumption of cardiovascular drugs between healthcare areas, together with discreet variations in price mean there are big differences in pharmaceutical expenditure from one population to another.

Keywords : Pharmacoepidemiology; Drug Costs; Cardiovascular diseases; Small-area analysis.

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