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Dive into the research topics where Andrew Costa is active.

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Featured researches published by Andrew Costa.


Annals of Emergency Medicine | 2013

Profiles of older patients in the emergency department: findings from the interRAI Multinational Emergency Department Study.

Leonard C. Gray; Nancye M. Peel; Andrew Costa; Ellen Burkett; Aparajit B. Dey; Palmi V. Jonsson; Prabha Lakhan; Gunnar Ljunggren; Fredrik Sjöstrand; Walter Swoboda; Nathalie Wellens; John P. Hirdes

STUDY OBJECTIVE We examine functional profiles and presence of geriatric syndromes among older patients attending 13 emergency departments (EDs) in 7 nations. METHODS This was a prospective observational study of a convenience sample of patients, aged 75 years and older, recruited sequentially and mainly during normal working hours. Clinical observations were drawn from the interRAI Emergency Department Screener, with assessments performed by trained nurses. RESULTS A sample of 2,282 patients (range 98 to 549 patients across nations) was recruited. Before becoming unwell, 46% were dependent on others in one or more aspects of personal activities of daily living. This proportion increased to 67% at presentation to the ED. In the ED, 26% exhibited evidence of cognitive impairment, and 49% could not walk without supervision. Recent falls were common (37%). Overall, at least 48% had a geriatric syndrome before becoming unwell, increasing to 78% at presentation to the ED. This pattern was consistent across nations. CONCLUSION Functional problems and geriatric syndromes affect the majority of older patients attending the ED, which may have important implications for clinical protocols and design of EDs.


BMC Health Services Research | 2012

Acute care inpatients with long-term delayed-discharge: evidence from a Canadian health region

Andrew Costa; Jeffrey W. Poss; Thomas Peirce; John P. Hirdes

BackgroundAcute hospital discharge delays are a pressing concern for many health care administrators. In Canada, a delayed discharge is defined by the alternate level of care (ALC) construct and has been the target of many provincial health care strategies. Little is known on the patient characteristics that influence acute ALC length of stay. This study examines which characteristics drive acute ALC length of stay for those awaiting nursing home admission.MethodsPopulation-level administrative and assessment data were used to examine 17,111 acute hospital admissions designated as alternate level of care (ALC) from a large Canadian health region. Case level hospital records were linked to home care administrative and assessment records to identify and characterize those ALC patients that account for the greatest proportion of acute hospital ALC days.ResultsALC patients waiting for nursing home admission accounted for 41.5% of acute hospital ALC bed days while only accounting for 8.8% of acute hospital ALC patients. Characteristics that were significantly associated with greater ALC lengths of stay were morbid obesity (27 day mean deviation, 99% CI = ±14.6), psychiatric diagnosis (13 day mean deviation, 99% CI = ±6.2), abusive behaviours (12 day mean deviation, 99% CI = ±10.7), and stroke (7 day mean deviation, 99% CI = ±5.0). Overall, persons with morbid obesity, a psychiatric diagnosis, abusive behaviours, or stroke accounted for 4.3% of all ALC patients and 23% of all acute hospital ALC days between April 1st 2009 and April 1st, 2011. ALC patients with the identified characteristics had unique clinical profiles.ConclusionsA small number of patients with non-medical days waiting for nursing home admission contribute to a substantial proportion of total non-medical days in acute hospitals. Increases in nursing home capacity or changes to existing funding arrangements should target the sub-populations identified in this investigation to maximize effectiveness. Specifically, incentives should be introduced to encourage nursing homes to accept acute patients with the least prospect for community-based living, while acute patients with the greatest prospect for community-based living are discharged to transitional care or directly to community-based care.


Academic Emergency Medicine | 2014

Geriatric syndromes predict postdischarge outcomes among older emergency department patients: findings from the interRAI Multinational Emergency Department Study.

Andrew Costa; John P. Hirdes; George A. Heckman; Aparajit B. Dey; Palmi V. Jonsson; Prabha Lakhan; Gunnar Ljunggren; K. Singler; Fredrik Sjöstrand; Walter Swoboda; Nathalie Wellens; Leonard C. Gray

OBJECTIVES Identifying older emergency department (ED) patients with clinical features associated with adverse postdischarge outcomes may lead to improved clinical reasoning and better targeting for preventative interventions. Previous studies have used single-country samples to identify limited sets of determinants for a limited number of proxy outcomes. The objective of this study was to identify and compare geriatric syndromes that influence the probability of postdischarge outcomes among older ED patients from a multinational context. METHODS A multinational prospective cohort study of ED patients aged 75 years or older was conducted. A total of 13 ED sites from Australia, Belgium, Canada, Germany, Iceland, India, and Sweden participated. Patients who were expected to die within 24 hours or did not speak the native language were excluded. Of the 2,475 patients approached for inclusion, 2,282 (92.2%) were enrolled. Patients were assessed at ED admission with the interRAI ED Contact Assessment, a geriatric ED assessment. Outcomes were examined for patients admitted to a hospital ward (62.9%, n=1,436) or discharged to a community setting (34.0%, n=775) after an ED visit. Overall, 3% of patients were lost to follow-up. Hospital length of stay (LOS) and discharge to higher level of care was recorded for patients admitted to a hospital ward. Any ED or hospital use within 28 days of discharge was recorded for patients discharged to a community setting. Unadjusted and adjusted odds ratios (ORs) were used to describe determinants using standard and multilevel logistic regression. RESULTS A multi-country model including living alone (OR=1.78, p≤0.01), informal caregiver distress (OR=1.69, p=0.02), deficits in ambulation (OR=1.94, p≤0.01), poor self-report (OR = 1.84, p≤0.01), and traumatic injury (OR=2.18, p≤0.01) best described older patients at risk of longer hospital lengths of stay. A model including recent ED visits (OR=2.10, p≤0.01), baseline functional impairment (OR=1.68, p≤0.01), and anhedonia (OR=1.73, p≤0.01) best described older patients at risk of proximate repeat hospital use. A sufficiently accurate and generalizable model to describe the risk of discharge to higher levels of care among admitted patients was not achieved. CONCLUSIONS Despite markedly different health care systems, the probability of long hospital lengths of stay and repeat hospital use among older ED patients is detectable at the multinational level with moderate accuracy. This study demonstrates the potential utility of incorporating common geriatric clinical features in routine clinical examination and disposition planning for older patients in EDs.


Reviews in Clinical Gerontology | 2014

The journey of the frail older adult with heart failure: implications for management and health care systems

George A. Heckman; Cara Tannenbaum; Andrew Costa; Karen Harkness; Robert S. McKelvie

The heart failure epidemic predominantly affects older people, particularly those with concurrent co-morbid conditions and geriatric syndromes. Mortality and heath service utilization associated with heart failure are significant, and extend beyond the costs associated with acute care utilization. Over time, older people with heart failure experience a journey characterized by gradual functional decline, accelerated by unpredictable disease exacerbations, requiring greater support to remain in the community, and often ultimately leading to institutionalization. In this narrative review, we posit that the rate of functional decline and associated health care resource utilization can be attenuated by optimizing the management of heart failure and associated co-morbidities. However, to realize this objective, the manner in which care is delivered to frail older people with heart failure must be restructured, from the bedside to the level of the health care system, in order to optimally anticipate, diagnose and manage co-morbidities.


Journal of the American Geriatrics Society | 2015

Derivation and Validation of the Detection of Indicators and Vulnerabilities for Emergency Room Trips Scale for Classifying the Risk of Emergency Department Use in Frail Community-Dwelling Older Adults

Andrew Costa; John P. Hirdes; Chaim M. Bell; Susan E. Bronskill; George A. Heckman; Lori Mitchell; Jeffery W. Poss; Samir K. Sinha; Paul Stolee

To develop and validate a prognostic case finding tool that classifies the risk of emergency department (ED) use in an older home care population.


BMC Medical Ethics | 2017

This moral coil: a cross-sectional survey of Canadian medical student attitudes toward medical assistance in dying

Eli Xavier Bator; Bethany Philpott; Andrew Costa

BackgroundIn February, 2015, the Supreme Court of Canada struck down the ban on medical assistance in dying (MAiD). In June, 2016, the federal government passed Bill C-14, permitting MAiD. Current medical students will be the first physician cohort to enter a system permissive of MAiD, and may help to ensure equitable access to care. This study assessed medical student views on MAiD, factors influencing these views, and opportunities for medical education.MethodsAn exploratory cross-sectional survey was developed and distributed to medical students across all years of a three-year Canadian undergraduate medical program. The investigators administered the survey to participants during academic sessions from November to December, 2015. Analysis of the results included summary descriptive statistics, Pearson’s chi-square test of independence to identify differences between participants by year of study, logistic regression to identify factors that influence students’ stances on MAiD, and Wilcoxon signed rank test to measure changes in student support for MAiD and comfort discussing MAiD.ResultsThere were 405 participants for a response rate of 87%. The majority of students (88%) supported the Supreme Court’s decision, 61% would provide the means for a patient to end their life, and 38% would personally administer a lethal medication. Students who were more willing to provide the means for MAiD found medical education/clinical experience and patient autonomy to be important contributors to their stances on MAiD. Those students who were less willing to provide the means for MAiD found religious/spiritual beliefs and teachings, as well as concern about potential negative consequences, to be important contributors to their stances on MAiD. Educational training desired by participants included medicolegal (91%), communication skills (80%), technical skills (75%), and religious (49%).ConclusionsMedical students generally supported and would provide the means for MAiD to patients. They also indicated a desire for directed medical education on MAiD.


Canadian Medical Association Journal | 2018

The association between home care visits and same-day emergency department use: a case–crossover study

Aaron Jones; Connie Schumacher; Susan E. Bronskill; Michael A. Campitelli; Jeffrey W. Poss; Hsien Seow; Andrew Costa

BACKGROUND: The extent to which home care visits contribute to the delay or avoidance of emergency department use is poorly characterized. We examined the association between home care visits and same-day emergency department use among patients receiving publicly funded home care. METHODS: We conducted a population-based case–crossover study among patients receiving publicly funded home care in the Hamilton–Niagara–Haldimand–Brant region of Ontario between January and December 2015. Within individuals, all days with emergency department visits after 5 pm were selected as cases and matched with control days from the previous week. The cohort was stratified according to whether patients had ongoing home care needs (“long stay”) or short-term home care needs (“short stay”). We used conditional logistical regression to estimate the association between receiving a home care visit during the day and visiting the emergency department after 5 pm on the same day. RESULTS: A total of 4429 long-stay patients contributed 5893 emergency department visits, and 2836 short-stay patients contributed 3476 visits. Receiving a home care nursing visit was associated with an increased likelihood of visiting the emergency department after 5 pm on the same day in both long-stay (odds ratio [OR] 1.32, 95% confidence interval [CI] 1.17–1.48) and short-stay patients (OR 1.22, 95% CI 1.07–1.39). Stronger associations were observed for less acute visits to the emergency department. No associations were observed for other types of home care visits. INTERPRETATION: Patients receiving home care were more likely to visit the emergency department during the evening on days they received a nursing visit. The mechanism of the association between home care visits and same-day emergency department use and the extent to which same-day emergency department visits could be prevented or diverted require additional investigation.


Age and Ageing | 2018

Identification of older adults with frailty in the Emergency Department using a frailty index: results from a multinational study

Audrey-Anne Brousseau; Elsa Dent; Ruth E. Hubbard; Don Melady; Marcel Émond; Eric Mercier; Andrew Costa; Leonard C. Gray; John P. Hirdes; Aparajit B. Dey; Palmi V. Jonsson; Prabha Lakhan; Gunnar Ljunggren; K. Singler; Fredrik Sjöstrand; Walter Swoboda; Nathalie Wellens

Objective frailty is a central concept in geriatric medicine, yet its utility in the Emergency Department (ED) is not well understood nor well utilised. Our objectives were to develop an ED frailty index (FI-ED), using the Rockwood cumulative deficits model and to evaluate its association with adverse outcomes. Method this was a large multinational prospective cohort study using data from the interRAI Multinational Emergency Department Study. The FI-ED was developed from the Canadian cohort and validated in the multinational cohort. All patients aged ≥75 years presenting to an ED were included. The FI-ED was created using 24 variables included in the interRAI ED-Contact Assessment tool. Results there were 2,153 participants in the Canadian cohort and 1,750 in the multinational cohort. The distribution of the FI-ED was similar to previous frailty indices. The mean FI-ED was 0.26 (Canadian cohort) and 0.32 (multinational cohort) and the 99th percentile was 0.71 and 0.81, respectively. In the Canadian cohort, a 0.1 unit increase in the FI-ED was significantly associated with admission (odds ratio (OR) = 1.43 [95% CI: 1.34-1.52]); death at 28 days (OR = 1.55 [1.38-1.73]); prolonged hospital stay (OR = 1.37 [1.22-1.54]); discharge to long-term care (OR = 1.30 [1.16-1.47]); and need for Comprehensive geriatric Assessment (OR = 1.51 [1.41-1.60]). The multinational cohort showed similar associations. Conclusion the FI-ED conformed to characteristics previously reported. A FI, developed and validated from a brief geriatric assessment tool could be used to identify ED patients at higher risk of adverse events.


Healthcare Management Forum | 2015

Contemplating case mix: A primer on case mix classification and management.

Andrew Costa; Jeffery W. Poss; Ian McKillop

Case mix classifications are the frameworks that underlie many healthcare funding schemes, including the so-called activity-based funding. Now more than ever, Canadian healthcare administrators are evaluating case mix-based funding and deciphering how they will influence their organization. Case mix is a topic fraught with technical jargon and largely relegated to government agencies or private industries. This article provides an abridged review of case mix classification as well as its implications for management in healthcare.


Geriatrics & Gerontology International | 2017

Identifying frailty in primary care: A systematic review

Linda Lee; Tejal Patel; Loretta M. Hillier; Niraj Maulkhan; Karen Slonim; Andrew Costa

Identification of frailty in the primary care setting could be improved with the availability of easily identifiable markers of frailty. The purpose of this article was to systematically review markers for frailty or risk tools that have been validated in the ambulatory care setting.

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Loretta M. Hillier

Lawson Health Research Institute

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Tejal Patel

University of Waterloo

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Nathalie Wellens

Katholieke Universiteit Leuven

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