PMID- 21209130 OWN - NLM STAT- MEDLINE DCOM- 20120821 LR - 20220408 IS - 2044-5423 (Electronic) IS - 2044-5415 (Linking) VI - 20 IP - 7 DP - 2011 Jul TI - The association between a prolonged stay in the emergency department and adverse events in older patients admitted to hospital: a retrospective cohort study. PG - 564-9 LID - 10.1136/bmjqs.2009.034926 [doi] AB - OBJECTIVE: Patient safety studies have identified older adults as a high-risk group for adverse events (AEs). As frequent users of the emergency department (ED), they are vulnerable to the negative consequences of ED crowding. The study objective was to determine whether a prolonged ED stay is associated with an increased risk for the occurrence of AEs for older patients admitted to hospital. METHODS: This retrospective cohort study was conducted at the largest adult tertiary care facility in Atlantic Canada (1 July 2005-31 March 2006). All community-dwelling persons 65 years and older admitted to an acute inpatient unit from the ED were eligible. The exposure of interest was total length of stay (LOS) in the ED. The primary outcome was the occurrence of an AE in-hospital. AEs were identified from administrative diagnostic data using previously validated screening criteria. RESULTS: The average age of 982 eligible participants was 77.8 years (SD 7.8). The majority (75.0%) experienced a prolonged ED LOS as defined by national guidelines. There was evidence of at least one AE in 140 (14.3%) records. After adjustment, for every hour spent in the ED, the odds of experiencing an AE in-hospital increased 3% (OR 1.03, 95% CI 1.004 to 1.05). Those with an AE had twice the hospital LOS (20.2 vs 9.8 days, p < 0.00001). INTERPRETATION: A prolonged ED stay for older admitted patients is associated with an increased risk of an in-hospital AE. The longer hospital LOS associated with AEs further reduces the availability of acute care beds, thus exacerbating ED crowding. FAU - Ackroyd-Stolarz, S AU - Ackroyd-Stolarz S AD - Department of Emergency Medicine, Dalhousie University, Queen Elizabeth II Health Sciences Centre, Halifax, Nova Scotia, Canada. stacy.ackroyd@dal.ca FAU - Read Guernsey, J AU - Read Guernsey J FAU - Mackinnon, N J AU - Mackinnon NJ FAU - Kovacs, G AU - Kovacs G LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110105 PL - England TA - BMJ Qual Saf JT - BMJ quality & safety JID - 101546984 MH - Age Factors MH - Aged MH - Aged, 80 and over MH - Crowding MH - Emergency Service, Hospital/*statistics & numerical data MH - Female MH - Humans MH - Length of Stay/*statistics & numerical data MH - Male MH - Quality of Health Care/*statistics & numerical data MH - Retrospective Studies MH - Safety Management/*statistics & numerical data EDAT- 2011/01/07 06:00 MHDA- 2012/08/22 06:00 CRDT- 2011/01/07 06:00 PHST- 2011/01/07 06:00 [entrez] PHST- 2011/01/07 06:00 [pubmed] PHST- 2012/08/22 06:00 [medline] AID - bmjqs.2009.034926 [pii] AID - 10.1136/bmjqs.2009.034926 [doi] PST - ppublish SO - BMJ Qual Saf. 2011 Jul;20(7):564-9. doi: 10.1136/bmjqs.2009.034926. Epub 2011 Jan 5.