Patient Prioritization in Emergency Department Triage Systems: An Empirical Study of the Canadian Triage and Acuity Scale (CTAS)
Published Online:8 Apr 2019https://doi.org/10.1287/msom.2018.0719
References
- (1996) An Introduction to Categorical Data Analysis, Vol. 135 (Wiley, New York).Google Scholar
- (2013) Structural estimation of callers’ delay sensitivity in call centers. Management Sci. 59(12):2727–2746.Link, Google Scholar
- (2015) On patient flow in hospitals: A data-based queueing-science perspective. Stochastic Syst. 5(1):146–194.Link, Google Scholar
- (2016) Early task initiation and other load-adaptive mechanisms in the emergency department. Management Sci. 63(11):3531–3551.Link, Google Scholar
- (2015) Waiting patiently: An empirical study of queue abandonment in an emergency department. Management Sci. 61(1):39–59.Link, Google Scholar
- . (2009) The effect of emergency department crowding on clinically oriented outcomes. Acad. Emerg. Medicine 16(1):1–10.Crossref, Google Scholar
- (1998) CAEP issues. The Canadian Triage and Acuity Scale: A new and critical element in health care reform. Canadian Association of Emergency Physicians. J. Emerg. Medicine 16(3):507–511.Google Scholar
- (2008) Revisions to the Canadian Emergency Department Triage and Acuity Scale (CTAS) adult guidelines. Can. J. Emerg. Medicine 10(2):136–142.Google Scholar
- ; Members of the CTAS National Working Group (2014) Revisions to the Canadian Emergency Department Triage and Acuity Scale (CTAS) guidelines. Can. J. Emerg. Medicine 16(6):485–489.Google Scholar
- (2002) Model Selection and Multimodel Inference: A Practical Information-Theoretic Approach (Springer-Verlag, New York).Google Scholar
- CAEP (2014) CTAS implementation guidelines. Retrieved February 25, 2015, http://caep.ca/resources/ctas/implementation-guidelines.Google Scholar
- (2003) Measuring imputed cost in the semiconductor equipment supply chain. Management Sci. 49(12):1653–1670.Link, Google Scholar
- (2000) Overcrowding in the nation’s emergency departments: Complex causes and disturbing effects. Ann. Emerg. Medicine 35(1):63–68.Crossref, Google Scholar
- (1990) User delay costs and internal pricing for a service facility. Management Sci. 36(12):1502–1517.Link, Google Scholar
- (2007) Prolonged emergency department stays of non–ST-segment-elevation myocardial infarction patients are associated with worse adherence to the American College of Cardiology/American Heart Association guidelines for management and increased adverse events. Ann. Emerg. Medicine 50(5):489–496.Crossref, Google Scholar
- (2013) Optimal workflow decisions for investigators in systems with interruptions. Management Sci. 59(5):1125–1141.Link, Google Scholar
- (1975) Urban travel demand: A behavioral analysis (North-Holland, Amsterdam).Google Scholar
- (2002) No room at the inn: Overcrowding in Ontario’s emergency departments. Can. J. Emerg. Medicine 4(2):91–97.Google Scholar
- (1985) Consistency and asymptotic normality of the maximum likelihood estimator in generalized linear models. Ann. Statist. 13(1):342–368.Crossref, Google Scholar
- (1999) Overcrowding in the ED: An international symptom of health care system failure. Amer. J. Emerg. Medicine 17(2):208–209.Crossref, Google Scholar
- (2009) Scheduling flexible servers with convex delay costs in many-server service systems. Manufacturing Service Oper. Management 11(2):237–253.Link, Google Scholar
- (2011) Association between waiting times and short term mortality and hospital admission after departure from emergency department: Population based cohort study from Ontario, Canada. Brit. Med. J. 342:d2983.Crossref, Google Scholar
- (2010) The effect of physician triage on emergency department length of stay. J. Emerg. Medicine 39(2):227–233.Crossref, Google Scholar
- (2011) Design and analysis of hospital admission control for operational effectiveness. Production Oper. Management 20(3):359–374.Crossref, Google Scholar
- (1989) A performance analysis of minimum laxity and earliest deadline scheduling in a real-time system. IEEE Trans. Comput. 38(12):1736–1744.Crossref, Google Scholar
- (2009) Partitioning of servers in queueing systems during rush hour. Manufacturing Service Oper. Management 11(3):416–428.Link, Google Scholar
- (2015) Control of patient flow in emergency departments, or multiclass queues with deadlines and feedback. Oper. Res. 63(4):892–908.Link, Google Scholar
- (2017) Discretionary task ordering: Queue management in radiological services. Management Sci. 64(9):4389–4407.Link, Google Scholar
- (2012) Physician in triage improves emergency department patient throughput. Intern. Emerg. Medicine 7(5):457–462.Crossref, Google Scholar
- (2007) Triage in medicine, part I: Concept, history, and types. Ann. Emerg. Medicine 49(3):275–281.Crossref, Google Scholar
- (1960) Some problems in queueing with dynamic priorities. Naval Res. Logist. Quart. 7(3):235–249.Crossref, Google Scholar
- (2013) Does multitasking improve performance? Evidence from the emergency department. Manufacturing Service Oper. Management 16(2):168–183.Link, Google Scholar
- (1964) A delay dependent queue discipline. Naval Res. Logist. Quart. 11(3–4):329–341.Crossref, Google Scholar
- (1983) Using discrete choice models with experimental design data to forecast consumer demand for a unique cultural event. J. Consumer Res. 10(3):348–361.Crossref, Google Scholar
- (2000) Stated Choice Methods: Analysis and Applications (Cambridge University Press, Cambridge, UK).Crossref, Google Scholar
- (2004) Scheduling flexible servers with convex delay costs: Heavy-traffic optimality of the generalized cμ-rule. Oper. Res. 52(6):836–855.Link, Google Scholar
- (1973) Conditional logit analysis of qualitative choice behavior. Zarembka P, ed. Frontiers in Econometrics (Academic Press, New York), 105–142.Google Scholar
- (1990) Optimal incentive-compatible priority pricing for the m/m/1 queue. Oper. Res. 38(5):870–883.Link, Google Scholar
- (2003) Estimating regression models with unknown break-points. Statist. Medicine 22(19):3055–3071.Crossref, Google Scholar
- , the CTAS (2004) Revisions to the Canadian Emergency Department Triage and Acuity Scale implementation guidelines. Can. J. Emerg. Medicine 6(6):421–427.Google Scholar
- (1994) Large sample estimation and hypothesis testing. Engle RF, McFadden DL, eds. Handbook of Econometrics (Elsevier, Amsterdam), 2111–2245.Google Scholar
- (2008) Structural estimation of the newsvendor model: An application to reserving operating room time. Management Sci. 54(1):41–55.Link, Google Scholar
- (2007) Key indicators of overcrowding in Canadian emergency departments: A Delphi study. Can. J. Emerg. Medicine 9(5):339–346.Google Scholar
- (2004) Waiting for total hip arthroplasty: Avoidable loss in quality time and preventable deterioration. J. Arthroplasty 19(3):302–309.Crossref, Google Scholar
- (2014) Optimal design of multi-server Markovian queues with polynomial waiting and service costs. Appl. Stochastic Models Bus. Indust. 30(4):429–443.Crossref, Google Scholar
- . (2011) International perspectives on emergency department crowding. Acad. Emerg. Medicine 18(12):1358–1370.Crossref, Google Scholar
- (2011) The role of triage liaison physicians on mitigating overcrowding in emergency departments: A systematic review. Acad. Emerg. Medicine 18(2):111–120.Crossref, Google Scholar
- (2015) Operations research/management contributions to emergency department patient flow optimization: Review and research prospects. IIE Trans. Healthcare Syst. Engrg. 5(2):101–123.Crossref, Google Scholar
- (2012) Patient streaming as a mechanism for improving responsiveness in emergency departments. Oper. Res. 60(5):1080–1097.Link, Google Scholar
- (2014) Complexity-augmented triage: A tool for improving patient safety and operational efficiency. Manufacturing Service Oper. Management 16(3):329–345.Link, Google Scholar
- (2014) A multi-class multi-server accumulating priority queue with application to health care. Oper. Res. Health Care 3(2):73–79.Crossref, Google Scholar
- (1956) Various optimizers for single-stage production. Naval Res. Logist. Quart. 3(1–2):59–66.Crossref, Google Scholar
- (2015) The diseconomies of queue pooling: An empirical investigation of emergency department length of stay. Management Sci. 61(12):3032–3053.Link, Google Scholar
- (2014) Waiting time distributions in the accumulating priority queue. Queueing Syst. 77(3):297–330.Crossref, Google Scholar
- (2017) Behavioral drivers of routing decisions: Evidence from restaurant table assignment. Working paper, Southern Methodist University, Dallas.Google Scholar
- (1992) Stability properties of constrained queueing systems and scheduling policies for maximum throughput in multihop radio networks. IEEE Trans. Autom. Control 37(12):1936–1948.Crossref, Google Scholar
- (2000) Halton Sequences for Mixed Logit. Unpublished manuscript, Department of Economics, University of California, Berkeley.Google Scholar
- (1995) Dynamic scheduling with convex delay costs: The generalized c|μ rule. Ann. Appl. Probab. 5(3):809–833.Crossref, Google Scholar
- (2003) Due-date scheduling: Asymptotic optimality of generalized longest queue and generalized largest delay rules. Oper. Res. 51(1):113–122.Link, Google Scholar
- (2016) How do delay announcements shape customer behavior? An empirical study. Management Sci. 63(1):1–20.Link, Google Scholar
- (2006) Anyone, Anything, Anytime: A History of Emergency Medicine (Elsevier/Mosby, Philadelphia).Google Scholar

