User profiles for Andrew P. Costa
 | Andrew P CostaAssociate Professor; Schlegel Chair; Canada Research Chair | McMaster University Verified email at mcmaster.ca Cited by 3463 |
Association between nursing home crowding and COVID-19 infection and mortality in Ontario, Canada
…, KL Schwartz, GE Garber, AP Costa… - JAMA internal …, 2021 - jamanetwork.com
Importance Nursing home residents have been disproportionately affected by coronavirus
disease 2019 (COVID-19). Prevention recommendations emphasize frequent testing of health …
disease 2019 (COVID-19). Prevention recommendations emphasize frequent testing of health …
Effectiveness of a fourth dose of covid-19 mRNA vaccine against the omicron variant among long term care residents in Ontario, Canada: test negative design study
…, L Nguyen, SA Buchan, SE Wilson, AP Costa… - Bmj, 2022 - bmj.com
Objectives To estimate the marginal effectiveness of a fourth versus third dose and the
vaccine effectiveness of mRNA covid-19 vaccines BNT162b2 and mRNA-1273 against any …
vaccine effectiveness of mRNA covid-19 vaccines BNT162b2 and mRNA-1273 against any …
For-profit long-term care homes and the risk of COVID-19 outbreaks and resident deaths
BACKGROUND: Long-term care (LTC) homes have been the epicentre of the coronavirus
disease 2019 (COVID-19) pandemic in Canada to date. Previous research shows that for-…
disease 2019 (COVID-19) pandemic in Canada to date. Previous research shows that for-…
[HTML][HTML] Acute care inpatients with long-term delayed-discharge: evidence from a Canadian health region
Background Acute 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) …
administrators. In Canada, a delayed discharge is defined by the alternate level of care (ALC) …
Profiles of older patients in the emergency department: findings from the interRAI Multinational Emergency Department Study
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 …
older patients attending 13 emergency departments (EDs) in 7 nations. Methods This was a …
Assessment of psychotropic drug prescribing among nursing home residents in Ontario, Canada, during the COVID-19 pandemic
Methods| In this cross-sectional study, we examined the monthly proportion of nursing home
residents who were prescribed psychotropic drugs as a proportion of the monthly number of …
residents who were prescribed psychotropic drugs as a proportion of the monthly number of …
[HTML][HTML] The associations between staffing hours and quality of care indicators in long-term care
Background Long-term care (LTC) staffing practices are poorly understood as is their influence
on quality of care. We examined the relationship between staffing characteristics and …
on quality of care. We examined the relationship between staffing characteristics and …
Community paramedicine: a systematic review of program descriptions and training
J Chan, LE Griffith, AP Costa, MS Leyenaar… - Canadian Journal of …, 2019 - cambridge.org
ObjectivesThe aim of this study is to identify the types of community paramedicine programs
and the training for each.MethodsA systematic review of MEDLINE, Embase, grey literature, …
and the training for each.MethodsA systematic review of MEDLINE, Embase, grey literature, …
[HTML][HTML] External validation of the 4C mortality score among COVID-19 patients admitted to hospital in Ontario, Canada: a retrospective study
Risk prediction scores are important tools to support clinical decision-making for patients
with coronavirus disease (COVID-19). The objective of this paper was to validate the 4C …
with coronavirus disease (COVID-19). The objective of this paper was to validate the 4C …
Geriatric syndromes predict postdischarge outcomes among older emergency department patients: findings from the interRAI Multinational Emergency Department …
Objectives Identifying older emergency department ( ED ) patients with clinical features
associated with adverse postdischarge outcomes may lead to improved clinical reasoning and …
associated with adverse postdischarge outcomes may lead to improved clinical reasoning and …