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Identifying geographical regions serviced by hospitals to assess laboratory-based outcomes

OBJECTIVE: To define geographical regions (forward sortation areas; FSAs) in Southwestern Ontario, Canada from which patients would reliably present to a hospital with linked laboratory data if they developed adverse events related to medications dispensed in outpatient pharmacies. DESIGN: Descripti...

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Autores principales: Gandhi, Sonja, Shariff, Salimah Z, Beyea, Michael M, Weir, Matthew A, Hands, Theresa, Kearns, Glen, Garg, Amit X
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BMJ Publishing Group 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3549199/
https://www.ncbi.nlm.nih.gov/pubmed/23293246
http://dx.doi.org/10.1136/bmjopen-2012-001921
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author Gandhi, Sonja
Shariff, Salimah Z
Beyea, Michael M
Weir, Matthew A
Hands, Theresa
Kearns, Glen
Garg, Amit X
author_facet Gandhi, Sonja
Shariff, Salimah Z
Beyea, Michael M
Weir, Matthew A
Hands, Theresa
Kearns, Glen
Garg, Amit X
author_sort Gandhi, Sonja
collection PubMed
description OBJECTIVE: To define geographical regions (forward sortation areas; FSAs) in Southwestern Ontario, Canada from which patients would reliably present to a hospital with linked laboratory data if they developed adverse events related to medications dispensed in outpatient pharmacies. DESIGN: Descriptive research. SETTING: Forty-five hospitals in Southwestern Ontario, Canada, from 2003 to 2009. PARTICIPANTS: Patients aged 66 years and older who received an outpatient prescription for any drug and presented to the emergency department in the subsequent 120 days. MAIN OUTCOME MEASURE: The proportion of patients in a given FSA presenting to an emergency department at a hospital with linked laboratory data versus a hospital without linked laboratory data. To be included in the catchment area at least 90% of emergency department visits in an FSA must have occurred at laboratory-linked hospitals in a given year. RESULTS: Over the study period, there were 649 713 emergency department visits by patients with recent prescription claims from pharmacies in 1 of 118 FSAs. In total, 141 302 of these patients presented to an emergency department at a laboratory-linked hospital. For the year 2003, 12 FSAs met our criteria to be in the catchment area and this number grew to 25 FSAs by the year 2009. CONCLUSIONS: The relevant geographical regions for hospitals with linked laboratory data have been successfully identified. Studies can now be conducted using these well-defined areas to obtain reliable information on the incidence and absolute risk of presenting to hospital with laboratory abnormalities in older adults dispensed commonly prescribed medications in outpatient pharmacies.
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spelling pubmed-35491992013-01-22 Identifying geographical regions serviced by hospitals to assess laboratory-based outcomes Gandhi, Sonja Shariff, Salimah Z Beyea, Michael M Weir, Matthew A Hands, Theresa Kearns, Glen Garg, Amit X BMJ Open Health Services Research OBJECTIVE: To define geographical regions (forward sortation areas; FSAs) in Southwestern Ontario, Canada from which patients would reliably present to a hospital with linked laboratory data if they developed adverse events related to medications dispensed in outpatient pharmacies. DESIGN: Descriptive research. SETTING: Forty-five hospitals in Southwestern Ontario, Canada, from 2003 to 2009. PARTICIPANTS: Patients aged 66 years and older who received an outpatient prescription for any drug and presented to the emergency department in the subsequent 120 days. MAIN OUTCOME MEASURE: The proportion of patients in a given FSA presenting to an emergency department at a hospital with linked laboratory data versus a hospital without linked laboratory data. To be included in the catchment area at least 90% of emergency department visits in an FSA must have occurred at laboratory-linked hospitals in a given year. RESULTS: Over the study period, there were 649 713 emergency department visits by patients with recent prescription claims from pharmacies in 1 of 118 FSAs. In total, 141 302 of these patients presented to an emergency department at a laboratory-linked hospital. For the year 2003, 12 FSAs met our criteria to be in the catchment area and this number grew to 25 FSAs by the year 2009. CONCLUSIONS: The relevant geographical regions for hospitals with linked laboratory data have been successfully identified. Studies can now be conducted using these well-defined areas to obtain reliable information on the incidence and absolute risk of presenting to hospital with laboratory abnormalities in older adults dispensed commonly prescribed medications in outpatient pharmacies. BMJ Publishing Group 2013-01-03 /pmc/articles/PMC3549199/ /pubmed/23293246 http://dx.doi.org/10.1136/bmjopen-2012-001921 Text en Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions This is an open-access article distributed under the terms of the Creative Commons Attribution Non-commercial License, which permits use, distribution, and reproduction in any medium, provided the original work is properly cited, the use is non commercial and is otherwise in compliance with the license. See: http://creativecommons.org/licenses/by-nc/2.0/ and http://creativecommons.org/licenses/by-nc/2.0/legalcode.
spellingShingle Health Services Research
Gandhi, Sonja
Shariff, Salimah Z
Beyea, Michael M
Weir, Matthew A
Hands, Theresa
Kearns, Glen
Garg, Amit X
Identifying geographical regions serviced by hospitals to assess laboratory-based outcomes
title Identifying geographical regions serviced by hospitals to assess laboratory-based outcomes
title_full Identifying geographical regions serviced by hospitals to assess laboratory-based outcomes
title_fullStr Identifying geographical regions serviced by hospitals to assess laboratory-based outcomes
title_full_unstemmed Identifying geographical regions serviced by hospitals to assess laboratory-based outcomes
title_short Identifying geographical regions serviced by hospitals to assess laboratory-based outcomes
title_sort identifying geographical regions serviced by hospitals to assess laboratory-based outcomes
topic Health Services Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3549199/
https://www.ncbi.nlm.nih.gov/pubmed/23293246
http://dx.doi.org/10.1136/bmjopen-2012-001921
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