Document Detail


No Diversion in Western Massachusetts.
MedLine Citation:
PMID:  22921858     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Massachusetts (MA) instituted a moratorium on ambulance diversion ("No Diversion") on January 1, 2009. STUDY OBJECTIVES: Determine whether No Diversion was associated with changes in Emergency Department (ED) throughput measures. DESIGN: Comparison of three 3-month periods. Period 1: 1 year prior (January-March 2008); Period 2: 3 months prior (October-December 2008); Period 3: 3 months after (January-March 2009). SETTING: Seven EDs in Western MA; two - including the only Level I Trauma Center - were "high" diversion (≥562 h/year) and 5 were "low" diversion (≤260 h/year). For "all," "high" diversion and "low" diversion ED groups, we compared mean monthly throughput measures, including: 1) total volume, 2) number of admissions, 3) number of elopements, 4) length of stay for all, admitted and discharged patients. Mean absolute and percent changes were estimated using mixed-effects regression analysis. Linear mixed models were run for "all," "high" and "low" diversion EDs comparing means of changes between periods. Results are presented as mean change per month in number and percent, and 95% confidence intervals were calculated. We specified that a clinically significant effect of No Diversion had to meet two criteria: 1) there was a consistent difference in the means for both the Period 1 vs. Period 3 comparison and the Period 2 vs. Period 3 comparison, and 2) both comparisons had to achieve statistical significance at p ≤ 0.01. RESULTS: According to pre-determined criteria, no clinically significant changes were found in any ED group in mean monthly volume, admissions, elopements, or length-of-stay for any patient disposition group. CONCLUSION: No Diversion was not associated with significant changes in throughput measures in "all," "high" diversion and "low" diversion EDs.
Authors:
Niels K Rathlev; Fidela Blank; Ben Osborne; Adam Kellogg; Haiping Li; Jacques Blanchet; Ray F Conway; Louis Durkin; Rick Gerstein; Stan Strzempko; Manish Vig; John P Santoro; Paul Visintainer
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-23
Journal Detail:
Title:  The Journal of emergency medicine     Volume:  -     ISSN:  0736-4679     ISO Abbreviation:  J Emerg Med     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8412174     Medline TA:  J Emerg Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Inc. All rights reserved.
Affiliation:
Department of Emergency Medicine, Baystate Medical Center and Tufts University School of Medicine, Springfield, Massachusetts.
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