Full Text Journal Articles by
Author Alain Vanasse

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Validity of Algorithms for Identification of Individuals Suffering from Chronic Noncancer Pain in Administrative Databases: A Systematic Review.

Anaïs Lacasse, Elizabeth Cauvier Charest, Roxanne Dault, Anne-Marie Cloutier, Manon Choinière, Lucie Blais, Alain Vanasse,

BACKGROUND:Secondary analysis of health administrative databases is indispensable to enriching our understanding of health trajectories, health care utilization, and real-world risks and benefits of drugs among large populations. OBJECTIVES:This systematic review aimed at assessing evidence about the validity of algorithms for the identification of individuals suffering from nonarthritic chronic noncancer ... Read more >>

Pain Med (Pain medicine (Malden, Mass.))
[2020, 21(9):1825-1839]

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Hydroxychloroquine (HCQ): an observational cohort study in primary and secondary prevention of pneumonia in an at-risk population

Alain Vanasse, Josiane Courteau, Yohann Chiu, Andre Cantin, Richard Leduc,

Background. Recent studies suggest that hydroxychloroquine (HCQ) could be effective against COVID-19. It is reasonable to expect that if HCQ can prevent or reduce the adverse effects of influenza, it may also reduce the effects of COVID-19 in humans. The objective of this study was to test whether HCQ can ... Read more >>

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Poster Presentations at the 10th Canadian Conference on Dementia (CCD), Québec City, October 3, 2019.

Can Geriatr J (Canadian geriatrics journal : CGJ)
[2020, 23(1):4-87]

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Healthcare utilization after a first hospitalization for COPD: a new approach of State Sequence Analysis based on the '6W' multidimensional model of care trajectories.

Alain Vanasse, Josiane Courteau, Mireille Courteau, Mike Benigeri, Yohann M Chiu, Isabelle Dufour, Simon Couillard, Pierre Larivée, Catherine Hudon,

BACKGROUND:Published methods to describe and visualize Care Trajectories (CTs) as patterns of healthcare use are very sparse, often incomplete, and not intuitive for non-experts. Our objectives are to propose a typology of CTs one year after a first hospitalization for Chronic Obstructive Pulmonary Disease (COPD), and describe CT types and ... Read more >>

BMC Health Serv Res (BMC health services research)
[2020, 20(1):177]

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Risk of Frequent Emergency Department Use Among an Ambulatory Care Sensitive Condition Population: A Population-based Cohort Study.

Catherine Hudon, Josiane Courteau, Yohann M Chiu, Maud-Christine Chouinard, Marie-France Dubois, Nicole Dubuc, Nicolas Elazhary, Francois Racine-Hemmings, Isabelle Dufour, Alain Vanasse,

BACKGROUND:A small fraction of patients use a disproportionately large amount of emergency department (ED) resources. Identifying these patients, especially those with ambulatory care sensitive conditions (ACSC), would allow health care professionals to enhance their outpatient care. OBJECTIVE:The objectives of the study were to determine predictive factors associated with frequent ED ... Read more >>

Med Care (Medical care)
[2020, 58(3):248-256]

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Persistent frequent emergency department users with chronic conditions: A population-based cohort study.

Yohann Moanahere Chiu, Alain Vanasse, Josiane Courteau, Maud-Christine Chouinard, Marie-France Dubois, Nicole Dubuc, Nicolas Elazhary, Isabelle Dufour, Catherine Hudon,

BACKGROUND:Frequent emergency department users are patients cumulating at least four visits per year. Few studies have focused on persistent frequent users, who maintain their frequent user status for multiple consecutive years. This study targets an adult population with chronic conditions, and its aims are: 1) to estimate the prevalence of ... Read more >>

PLoS ONE (PloS one)
[2020, 15(2):e0229022]

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Evaluating implementation and impact of a provincial quality improvement collaborative for the management of chronic diseases in primary care: the COMPAS+ study protocol.

Brigitte Vachon, Isabelle Gaboury, Matthew Menear, Marie-Pascale Pomey, Denis Roy, Lise Houle, Mylaine Breton, Arnaud Duhoux, Valérie Émond, Guylaine Giasson, Janusz Kaczorowski, France Légaré, Marie-Thérèse Lussier, Pierre Pluye, Alain Vanasse,

BACKGROUND:Chronic conditions such as diabetes and chronic obstructive pulmonary disease (COPD) are common and burdensome diseases primarily managed in primary care. Yet, evidence points to suboptimal quality of care for these conditions in primary care settings. Quality improvement collaboratives (QICs) are organized, multifaceted interventions that can be effective in improving ... Read more >>

BMC Fam Pract (BMC family practice)
[2020, 21(1):3]

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Conducting gender-based analysis of existing databases when self-reported gender data are unavailable: the GENDER Index in a working population.

Anaïs Lacasse, M Gabrielle Pagé, Manon Choinière, Marc Dorais, Bilkis Vissandjée, Hermine Lore Nguena Nguefack, Joel Katz, Oumar Mallé Samb, Alain Vanasse, ,

OBJECTIVES:Growing attention has been given to considering sex and gender in health research. However, this remains a challenge in the context of retrospective studies where self-reported gender measures are often unavailable. This study aimed to create and validate a composite gender index using data from the Canadian Community Health Survey ... Read more >>

Can J Public Health (Canadian journal of public health = Revue canadienne de sante publique)
[2020, 111(2):155-168]

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Statistical tools used for analyses of frequent users of emergency department: a scoping review.

Yohann Chiu, François Racine-Hemmings, Isabelle Dufour, Alain Vanasse, Maud-Christine Chouinard, Mathieu Bisson, Catherine Hudon,

OBJECTIVE:Frequent users represent a small proportion of emergency department users, but they account for a disproportionately large number of visits. Their use of emergency departments is often considered suboptimal. It would be more efficient to identify and treat those patients earlier in their health problem trajectory. It is therefore essential ... Read more >>

BMJ Open (BMJ open)
[2019, 9(5):e027750]

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Feature-weighted survival learning machine for COPD failure prediction.

Jianfei Zhang, Shengrui Wang, Josiane Courteau, Lifei Chen, Gongde Guo, Alain Vanasse,

Chronic obstructive pulmonary disease (COPD) yields a high rate of failures such as hospital readmission and death in the United States, Canada and worldwide. COPD failure imposes a significant social and economic burden on society, and predicting such failure is crucial to early intervention and decision-making, making this a very ... Read more >>

Artif Intell Med (Artificial intelligence in medicine)
[2019, 96:68-79]

Cited: 1 time

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Greater eosinophil counts at first COPD hospitalization are associated with more readmissions and fewer deaths.

Qing Li, Pierre Larivée, Josiane Courteau, Simon Couillard, Thomas G Poder, Nathalie Carrier, Maryse Bélanger, Alain Vanasse,

Purpose:The impacts of high blood eosinophil count (HBEC) at admission for COPD exacerbation on posthospitalization outcomes are still unclear. Previous studies have focused on its associations with first readmission rates; yet, its impacts on longitudinal outcomes such as subsequent readmissions still have to be explored. The main objective of this ... Read more >>

Int J Chron Obstruct Pulmon Dis (International journal of chronic obstructive pulmonary disease)
[2019, 14:331-341]

Cited: 3 times

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Rationale and Design of the FREQUENCY Study: The Fetal Cardiac Registry of Québec to Improve Resource Utilization in Fetal Cardiology.

Camille Noël, Marie-Hélène Gagnon, Mikhail-Paul Cardinal, Olivier Guertin, Antoine Déry, Cassandre Têtu, Alain Vanasse, Marie-Ève Roy-Lacroix, Thomas G Poder, Ariane J Marelli, Tiscar Cavallé-Garrido, Laurence Vaujois, Jean-Luc Bigras, Frédéric Dallaire,

OBJECTIVE:Prenatal detection of congenital heart diseases (CHD) decreases morbidity and cost. To improve detections rates, most physicians refer pregnant women with high-risk pregnancies to fetal cardiologists even when there is no suspicion of CHD at the second trimester screening. This paper presents the rationale and detailed method of the Fetal ... Read more >>

J Obstet Gynaecol Can (Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC)
[2019, 41(4):459-465.e12]

Cited: 1 time

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Eosinophil counts in first COPD hospitalizations: a 1-year cost analysis in Quebec, Canada.

Thomas G Poder, Nathalie Carrier, Maryse Bélanger, Simon Couillard, Josiane Courteau, Pierre Larivée, Alain Vanasse,

Background:Exacerbations explain much of the cost of COPD. Higher blood eosinophil cell counts at admission for acute exacerbation of COPD increase the risk of subsequent exacerbations and hospitalizations. However, there is no literature on the economic burden of patients with this inflammatory profile. The objective of this study is to ... Read more >>

Int J Chron Obstruct Pulmon Dis (International journal of chronic obstructive pulmonary disease)
[2018, 13:3065-3076]

Cited: 3 times

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Eosinophil counts in first COPD hospitalizations: a comparison of health service utilization.

Maryse Bélanger, Simon Couillard, Josiane Courteau, Pierre Larivée, Thomas G Poder, Nathalie Carrier, Kim Girard, Felix-Antoine Vézina, Alain Vanasse,

Purpose:Current evidence suggests that a higher blood eosinophil cell count at admission for acute exacerbation of COPD (AECOPD) is associated with a favorable response to systemic steroids. However, the impact of blood eosinophil counts at admission on post-hospitalization outcomes is still unclear. The main objective of this study is to ... Read more >>

Int J Chron Obstruct Pulmon Dis (International journal of chronic obstructive pulmonary disease)
[2018, 13:3045-3054]

Cited: 5 times

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Neighbourhood Material and Social Deprivation and Exposure to Antidepressant Drug Treatment: A Cohort Study Using Administrative Data.

Sophie Lauzier, Hichem Kadachi, Jocelyne Moisan, Alain Vanasse, Alain Lesage, Marie-Josée Fleury, Jean-Pierre Grégoire,

OBJECTIVE:To assess whether neighbourhood deprivation is associated with exposure to an antidepressant drug treatment (ADT) and its quality among individuals diagnosed with unipolar depression and insured by the Quebec public drug plan. METHOD:We conducted an administrative database cohort study of adults covered by the Quebec public drug plan who were ... Read more >>

Can J Psychiatry (Canadian journal of psychiatry. Revue canadienne de psychiatrie)
[2018, 63(10):701-711]

Cited: 1 time

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[Databank use and issues in mental health and addiction services].

Marie-Josée Fleury, André Delorme, Mike Benigeri, Alain Vanasse,

Clinical-administrative databanks are a key tool in support of public health decision-making. A number of databanks are available relevant to population needs, resources available, as well as performance indicators. Since the 2000s, considerable efforts have been dedicated to the consolidation of findings and development of tools aimed at improving surveillance ... Read more >>

Sante Ment Que (Sante mentale au Quebec)
[2018, 43(2):21-38]

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[Characterization of First Episodes of Schizophrenia from Combined Administrative Databases].

Mélissa Beaudoin, Stéphane Potvin, Laura Dellazizzo, Maëlle Surprenant, Alain Lesage, Alain Vanasse, André Ngamini-Ngui, Alexandre Dumais,

Schizophrenia (SCZ) is a severe chronic disease associated with significant functional impairments. Prior to a diagnosis of SCZ, some nonspecific symptoms may occur (i.e., anxiety, insomnia, depressive symptoms) and may progress into psychosis. While these may be attenuated or not of sufficient severity for psychosis, many will seek help for ... Read more >>

Sante Ment Que (Sante mentale au Quebec)
[2018, 43(2):83-105]

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[Estimating the Prevalence and Incidence Rate of Autism Spectrum Disorder (ASD): Interprovincial Comparisons].

Fatoumata Binta Diallo, Éric Pelletier, Helen-Maria Vasiliadis, Louis Rochette, Elizabeth Lin, Mark Smith, Donald Langille, Angus Thompspon, Manon Noiseux, Alain Vanasse, Danielle St-Laurent, Steven Kisely, Éric Fombonne, Alain Lesage,

Objective The prevalence of diagnosed autism spectrum disorders (ASD) has risen steadily over time. There is therefore a need for the monitoring of treated ASD for timely policy making. The objective of this study is to report and compare over a 10-year period the prevalence and incidence rate of diagnosed ... Read more >>

Sante Ment Que (Sante mentale au Quebec)
[2018, 43(2):65-81]

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Prevalence and Correlates of Autism Spectrum Disorders in Quebec: Prévalence et corrélats des troubles du spectre de l'autisme au Québec.

Fatoumata Binta Diallo, Éric Fombonne, Steve Kisely, Louis Rochette, Helen-Maria Vasiliadis, Alain Vanasse, Manon Noiseux, Éric Pelletier, Johanne Renaud, Danielle St-Laurent, Alain Lesage,

OBJECTIVE:To estimate the prevalence, comorbidities, and service use of people with autism spectrum disorders (ASDs) based on data from Quebec Integrated Chronic Diseases Surveillance System (QICDSS). METHODS:We included all residents up to age 24 eligible for health plan coverage who were in Quebec for at least 1 day from January ... Read more >>

Can J Psychiatry (Canadian journal of psychiatry. Revue canadienne de psychiatrie)
[2018, 63(4):231-239]

Cited: 12 times

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Factors associated with chronic frequent emergency department utilization in a population with diabetes living in metropolitan areas: a population-based retrospective cohort study.

Catherine Hudon, Josiane Courteau, Cynthia Krieg, Alain Vanasse,

A small proportion of patients utilizes a disproportionately large amount of emergency department (ED) resources. Being able to properly identify chronic frequent ED users, i.e. frequent ED users over a multiple-year period, would allow healthcare professionals to intervene before it occurs and, if possible, redirect these patients to more appropriate ... Read more >>

BMC Health Serv Res (BMC health services research)
[2017, 17(1):525]

Cited: 3 times

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Predicting One-year Mortality After a "First" Hospitalization for Chronic Obstructive Pulmonary Disease: An Eight-Variable Assessment Score Tool.

Alain Vanasse, Josiane Courteau, Simon Couillard, Marie-France Beauchesne, Pierre Larivée,

Several authors have studied predictors of outcomes following a hospitalization for chronic obstructive pulmonary disease (COPD); however, few have reported outcomes following a first hospitalization for COPD. The objective is to develop a predictive mortality risk model in patients surviving a first hospitalization for COPD. This is a retrospective cohort ... Read more >>

COPD (COPD)
[2017, 14(5):490-497]

Cited: 5 times

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Vasopressor use following traumatic injury - A single center retrospective study.

Mathieu Hylands, Marie-Pier Godbout, Sandeep K Mayer, William D Fraser, Alain Vanasse, Marc-André Leclair, Alexis F Turgeon, François Lauzier, Emmanuel Charbonney, Vincent Trottier, Tarek S Razek, André Roy, Frédérick D'Aragon, Emilie Belley-Côté, Andrew G Day, Soazig Le Guillan, Robert Sabbagh, François Lamontagne,

OBJECTIVES:Vasopressors are not recommended by current trauma guidelines, but recent reports indicate that they are commonly used. We aimed to describe the early hemodynamic management of trauma patients outside densely populated urban centers. METHODS:We conducted a single-center retrospective cohort study in a Canadian regional trauma center. All adult patients treated ... Read more >>

PLoS ONE (PloS one)
[2017, 12(4):e0176587]

Cited: 1 time

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Erratum to: A qualitative study of perceived needs and factors associated with the quality of care for common mental disorders in patients with chronic diseases: the perspective of primary care clinicians and patients.

Pasquale Roberge, Catherine Hudon, Alan Pavilanis, Marie-Claude Beaulieu, Annie Benoit, Hélène Brouillet, Isabelle Boulianne, Anna De Pauw, Serge Frigon, Isabelle Gaboury, Martine Gaudreault, Ariane Girard, Marie Giroux, Élyse Grégoire, Line Langlois, Martin Lemieux, Christine Loignon, Alain Vanasse,

BMC Fam Pract (BMC family practice)
[2016, 17(1):174]

Cited: 0 times

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[Initiating an antipsychotic drug treatment for schizophrenia: the situation in Quebec, Canada, from 1998 to 2006].

Jean-Daniel Carrier, Lucie Blais, Alan Cohen, Josiane Courteau, Pasquale Roberge, Annie Larouche, Sylvain Grignon, Marie-Josée Fleury, Alain Lesage, Marie-France Demers, Marc-André Roy, André Delorme, Alain Vanasse,

Objectives To describe factors associated with the following characteristics of the first prescription of an antipsychotic drug treatment (ADT): 1) prescribing physician type (psychiatrist vs. general practitioner); 2) second-generation vs. first-generation antipsychotic drug; 3) in conjunction with at least one additional antipsychotic drug (multitherapy); 4) never renewed by the patient.Methods ... Read more >>

Sante Ment Que (Sante mentale au Quebec)
[2017, 42(1):85-103]

Cited: 0 times

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Eosinophils in COPD Exacerbations Are Associated With Increased Readmissions.

Simon Couillard, Pierre Larivée, Josiane Courteau, Alain Vanasse,

BACKGROUND:A subset of patients with COPD demonstrates eosinophilic inflammation either in their sputum or blood. Previous studies regarding the association between increased blood eosinophil levels and poor readmission outcomes are conflicting. The goal of this study was to investigate outcomes following severe COPD exacerbations in patients with higher blood eosinophil ... Read more >>

Chest (Chest)
[2017, 151(2):366-373]

Cited: 42 times

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