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Geographical Variation in Medication Prescriptions: A Multiregional Drug-Utilization Study.


ABSTRACT: Background:Studies have emphasized the importance of geographical factors and general practitioner (GP) characteristics in influencing drug prescriptions. Objectives:To: (i) ascertain the prevalence rate (PR) of use of drugs in six therapeutic categories used for chronic conditions; (ii) assess how geographical characteristics and GP characteristics may influence drug prescribing. Methods:This study is part of the EDU.RE.DRUG Project, a national collaborative project founded by Italian Medicine Agency (AIFA). Cross-sectional analyses were undertaken employing the pharmacy-claim databases of four local health units (LHUs) located in two Italian regions: Lombardy and Campania. Six drug categories were evaluated: proton-pump inhibitors; antibiotics; respiratory-system drugs; statins; agents acting on the renin-angiotensin system; psychoanaleptic drugs. The PR was estimated according to drug categories at the LHU level. A linear multivariate regression analysis was undertaken to evaluate the association between the PR and geographical area, age and sex of GPs, number of patients, and percentage of patients aged >65 per GP. Results:LHUs in Campania showed a PR that was significantly higher than that in Lombardy. Antibiotics showed the highest PR in all the LHUs assessed, ranging from 32.5% in Lecco (Lombardy) to 59.7% in Naples-2 (Campania). Multivariate linear regression analysis confirmed the association of the PR with geographical area for all drug categories. Being located in Campania increased the possibility of receiving a drug prescription from the categories considered, with estimates more marked for antibiotics, proton-pump-inhibitors, and respiratory-system drugs. Conclusions:This study provides information about the PR of medications used for treating common and costly conditions in Italy and highlighted a significant geographical variation. These insights could help to develop area-specific strategies to optimize prescribing behavior.

SUBMITTER: Russo V 

PROVIDER: S-EPMC7269055 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Geographical Variation in Medication Prescriptions: A Multiregional Drug-Utilization Study.

Russo Veronica V   Orlando Valentina V   Monetti Valeria Marina VM   Galimberti Federica F   Casula Manuela M   Olmastroni Elena E   Tragni Elena E   Menditto Enrica E  

Frontiers in pharmacology 20200505


<h4>Background</h4>Studies have emphasized the importance of geographical factors and general practitioner (GP) characteristics in influencing drug prescriptions.<h4>Objectives</h4>To: (i) ascertain the prevalence rate (PR) of use of drugs in six therapeutic categories used for chronic conditions; (ii) assess how geographical characteristics and GP characteristics may influence drug prescribing.<h4>Methods</h4>This study is part of the EDU.RE.DRUG Project, a national collaborative project founde  ...[more]

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