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The adequacy of pharmaceutical treatment of schizophrenia in Quebec varies with age, but is not influenced by sex or neighbourhood deprivation.

https://arctichealth.org/en/permalink/ahliterature107816
Source
Can J Psychiatry. 2013 Aug;58(8):456-65
Publication Type
Article
Date
Aug-2013
Author
Frederieke M Brouwers
Josiane Courteau
Jean-Pierre Grégoire
Jocelyne Moisan
Sophie Lauzier
Alain Lesage
Marie-Josée Fleury
Alain Vanasse
Author Affiliation
Department of Family Medicine and Emergency Medicine, Université de Sherbrooke, Sherbrooke, Quebec.
Source
Can J Psychiatry. 2013 Aug;58(8):456-65
Date
Aug-2013
Language
English
Publication Type
Article
Keywords
Adolescent
Adult
Age Factors
Aged
Antipsychotic Agents - therapeutic use
Cohort Studies
Drug Prescriptions - statistics & numerical data
Female
Humans
Male
Middle Aged
Quebec - epidemiology
Residence Characteristics - statistics & numerical data
Schizophrenia - drug therapy - epidemiology
Sex Factors
Socioeconomic Factors
Young Adult
Abstract
Though high discontinuation rates for antipsychotics (APs) by patients with schizophrenia are frequently reported, the percentage of patients receiving pharmaceutical treatment for schizophrenia in routine practice in accordance with international clinical guidelines is unknown. Further, it is unknown if these rates are influenced by levels of neighbourhood deprivation or by a patient's age or sex. Our study aims to investigate if inequalities in AP treatment could be observed between patients living in neighbourhoods with the highest levels of material and social deprivation and those with the lowest deprivation levels, between patients from different age groups, or between men and women.
We conducted a secondary analysis of medical-administrative data of a cohort of adult patients in the province of Quebec with a medical contact for schizophrenia in a 2-year period (2004-2005). We assessed the proportion of patients that filled at least 1 prescription for an AP and received adequate pharmaceutical treatment, defined as being in possession of APs at least 80% of the time as outpatients during a 2-year follow-up period.
Among the 30 544 study patients, 88.5% filled at least 1 prescription for an AP, and 67.5% of the treated patients received adequate treatment. Though no clinically significant differences were observed by deprivation or sex, younger age was associated with lower proportions of patients receiving adequate treatment (46% of treated patients aged between 18 and 29 years, compared with 72% aged between 30 and 64 years, and 77% aged 65 years and over).
In Quebec's routine practice, over 70% of treated patients aged 30 and over received adequate pharmacological treatment, regardless of sex or neighbourhood socioeconomic status. In contrast, in patients aged between 18 and 29 years this percentage was 47%. This is a discouraging finding, especially because optimal treatment in the early phase of disease is reported to result in the best long-term outcomes.
PubMed ID
23972107 View in PubMed
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Adherence to vascular protection drugs in diabetic patients in Quebec: a population-based analysis.

https://arctichealth.org/en/permalink/ahliterature144306
Source
Diab Vasc Dis Res. 2010 Apr;7(2):167-71
Publication Type
Article
Date
Apr-2010
Author
Shabnam Asghari
Josiane Courteau
Catherine Drouin
Jean-Pierre Grégoire
André C Carpentier
Mariane Pâquet
Alain Vanasse
Author Affiliation
PRIMUS Group, Centre de recherche clinique Etienne-Le Bel, CHUS, Sherbrooke (QC), Canada.
Source
Diab Vasc Dis Res. 2010 Apr;7(2):167-71
Date
Apr-2010
Language
English
Publication Type
Article
Keywords
Aged
Angiotensin II Type 1 Receptor Blockers - therapeutic use
Anti-Inflammatory Agents, Non-Steroidal - therapeutic use
Aspirin - therapeutic use
Diabetic Angiopathies - prevention & control
Female
Humans
Male
Medication Adherence - statistics & numerical data
Middle Aged
Multivariate Analysis
Quebec
Retrospective Studies
Abstract
The purpose of this study was to assess adherence to vascular protection drugs in diabetic patients using a cohort of diabetic patients aged >or=30 years, covered by the public drug insurance in the province of Quebec, excluding gestational diabetes and patients who were hopitalized or died during the 1-year follow-up. Drug adherence was measured using the medication possession ratio. Multivariate analyses, including logit and multinomial logit were used. Of the 170,381 diabetics (mean age: 62 +/- 14 years), 18% and 32% were regular users of ASA and ACEIs/ARBs, respectively. Regular use increased with age (p
PubMed ID
20382781 View in PubMed
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Community pharmacy loyalty among individuals with schizophrenia.

https://arctichealth.org/en/permalink/ahliterature115283
Source
Res Social Adm Pharm. 2013 Nov-Dec;9(6):806-16
Publication Type
Article
Author
Sophie Lauzier
Jean-Pierre Grégoire
Alain Lesage
Jocelyne Moisan
Author Affiliation
Faculty of Pharmacy, 1050 avenue de la Médecine, Université Laval, Québec, QC, Canada G1V 0A6; Chair on adherence to treatments, Université Laval, Québec, QC, Canada G1V 0A6; Santé des populations: URESP, Centre de recherche du CHU de Québec, 1050 Chemin Ste-Foy, Québec, QC, Canada G1S 4L8. Electronic address: sophie.lauzier@pha.ulaval.ca.
Source
Res Social Adm Pharm. 2013 Nov-Dec;9(6):806-16
Language
English
Publication Type
Article
Keywords
Adult
Aged
Antipsychotic Agents - therapeutic use
Community Pharmacy Services - statistics & numerical data
Female
Humans
Male
Middle Aged
Quebec
Schizophrenia - drug therapy
Young Adult
Abstract
Community pharmacists can use medication records to assist individuals who are loyal to their pharmacy in better managing their pharmacotherapy. However, the extent of community pharmacy loyalty among individuals with severe mental illness such as schizophrenia remains unknown.
To assess the extent of community pharmacy loyalty among individuals with schizophrenia and identify factors associated with loyalty.
Using the Quebec Health Insurance Board databases, a cohort study of individuals with schizophrenia who claimed an antipsychotic drug for the first time between January 1, 2001 and December 31, 2005 was conducted. Such individuals were considered loyal to their community pharmacy if they filled all their prescriptions for any drug at the same community pharmacy during the second year after antipsychotics initiation. Logistic regression models were used to identify factors associated with community pharmacy loyalty (measured in the first year after antipsychotics initiation).
Of the 6159 individuals in the study, 57.8% were loyal to one pharmacy. Men were more likely to be loyal (Adjusted OR = 1.29; 95% CI = 1.16-1.44), as were individuals aged 30-64 years and those aged =65 years, when compared to individuals 20-29 years (1.70; 1.48-1.95 and 2.39; 1.97-2.90, respectively). Individuals who filled their antipsychotics on a weekly basis were also more likely to be loyal (1.39; 1.18-1.63). Factors associated with non-loyalty were welfare beneficiary status (0.79; 0.70-0.89), having substance-use disorder (0.69; 0.60-0.80), a greater number of different types of drugs (5-8 types = 0.76; 0.66-0.87; 9-51 = 0.59; 0.50-0.69), and emergency department visits (0.71; 0.60-0.82).
Results suggest that medication records in community pharmacies are incomplete for 42.2% of individuals with schizophrenia. Individuals more likely to experience more severe illness were also those less likely to be loyal. Given the potentially severe consequences of medication-related problems in this latter population, strategies to further improve the comprehensiveness of medication information should be promoted.
PubMed ID
23522802 View in PubMed
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Cost-benefit model comparing two alternative immunisation programmes against serogroup C meningococcal disease: for Quebec residents aged 2 months to 20 years.

https://arctichealth.org/en/permalink/ahliterature185965
Source
Pharmacoeconomics. 2003;21(6):429-42
Publication Type
Article
Date
2003
Author
Carol Rancourt
Jean-Pierre Grégoire
W. Simons
Alain Dostie
Author Affiliation
Health Economics and Outcomes Research, Merck Frosst Canada Ltd, Montreal, Quebec, Canada. carol_rancourt@merck.com
Source
Pharmacoeconomics. 2003;21(6):429-42
Date
2003
Language
English
Publication Type
Article
Keywords
Adolescent
Adult
Child
Child, Preschool
Cost-Benefit Analysis
Female
Humans
Immunization Programs - economics
Male
Meningococcal Infections - economics - immunology - prevention & control
Models, Economic
Quebec - epidemiology
Treatment Outcome
Abstract
To evaluate the most efficient approach to managing an outbreak of serogroup C meningococcal disease. An early planned mass immunisation programme (MIP) was compared with a delayed programme implemented at the peak of a meningococcal outbreak.
A cost-benefit model was constructed of meningococcal cases reported in Quebec, Canada, from 1990-1993, before and after the MIP, during the winter of 1992-1993, when 84% of residents aged 6 months to 20 years were vaccinated. Epidemiological data from 1990-1993 were transposed to 2002-2003 under the assumption that Quebec is on the brink of an identical outbreak cycle. All Quebec residents aged 2 months to 20 years were assumed to be vaccinated, which required a total of 1.7 million doses of conjugated vaccine. Clinical and economic outcomes of both vaccination scenarios were compared. All costs were transformed to 2001 Canadian dollars ($Can), at an annual inflation rate of 3%. Future earnings due to premature death were discounted at 5% per year with a 3% increase in wages per year and a 9% unemployment rate.
Ministry of Health and society.
The number of new cases avoided and the prevention of hospital and societal costs due to meningococcal disease-attributed premature mortality and morbidity, and direct costs associated with implementation of a MIP.
When compared with a delayed MIP over a 14-month period, an early planned MIP would have prevented 112 new cases of meningococcal disease (16 deaths, 21 major complications) while saving $ Can 37.1 million in total direct costs to the Ministry of Health and an additional $ Can 17.4 million in societal costs in the province of Quebec.
An early planned MIP implemented in Quebec in September 2001, should be cost beneficial compared with delaying mass immunisation until a meningococcal outbreak is underway. Although this conclusion is limited by the assumption that epidemiological trends in 2001 in absence of a MIP would have been similar to that observed in the early 1990s prior to the MIP, the analysis still indicates that an early MIP in the 1990s would have been cost beneficial compared with a delayed MIP.
PubMed ID
12678569 View in PubMed
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Determinants of discontinuation of new courses of antihypertensive medications.

https://arctichealth.org/en/permalink/ahliterature189125
Source
J Clin Epidemiol. 2002 Jul;55(7):728-35
Publication Type
Article
Date
Jul-2002
Author
Jean-Pierre Grégoire
Jocelyne Moisan
Rémi Guibert
Antonio Ciampi
Alain Milot
Michel Gaudet
Isabelle Côté
Author Affiliation
Faculté de pharmacie and Unité de recherche en santé des populations, Université Laval, Québec, Canada. jeanpierre_gregoire@merck.com
Source
J Clin Epidemiol. 2002 Jul;55(7):728-35
Date
Jul-2002
Language
English
Publication Type
Article
Keywords
Adolescent
Adult
Aged
Antihypertensive Agents - adverse effects - economics - therapeutic use
Canada
Cohort Studies
Female
Health Knowledge, Attitudes, Practice
Humans
Insurance, Pharmaceutical Services
Interviews as Topic
Male
Middle Aged
Pharmacies
Proportional Hazards Models
Prospective Studies
Self Administration - psychology - utilization
Treatment Refusal - psychology - statistics & numerical data
Abstract
Discontinuation of medication use constitutes a major barrier to adequate control of high blood pressure. We examined the effect of an array of potential predisposing, enabling and reinforcing factors on the discontinuation of newly prescribed antihypertensive medications. We conducted a prospective cohort study through a network of 173 pharmacies across Canada where were identified individuals newly prescribed an antihypertensive monotherapy. We interviewed participants by telephone four times to obtain information for a minimum duration of 18 months after entry into the cohort. We analyzed data using a multivariate proportional hazard model. Of 682 eligible participants, 43.3% had discontinued their initial medication at the end of the observation period. Individuals more likely to discontinue their initial medication were those who perceived side effects from this medication [Hazard Ratio (HR) = 1.91; 95% Confidence Interval (CI) 1.47-2.47). Individuals with medication insurance coverage were less likely to discontinue (HR = 0.74; 95% CI 0.55-0.99). Persistence with newly prescribed medications could be improved by selecting antihypertensive medications containing fewer side effects and by lifting economic barriers to drug treatment.
PubMed ID
12160922 View in PubMed
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Does elapsed time between first diagnosis of schizophrenia and migration between health territories vary by place of residence? A survival analysis approach.

https://arctichealth.org/en/permalink/ahliterature116633
Source
Health Place. 2013 Mar;20:66-74
Publication Type
Article
Date
Mar-2013
Author
André Ngamini Ngui
Alan A Cohen
Josiane Courteau
Alain Lesage
Marie-Josée Fleury
Jean-Pierre Grégoire
Jocelyne Moisan
Alain Vanasse
Author Affiliation
Groupe PRIMUS, Centre de recherche clinique Étienne-Le Bel, Université de Sherbrooke, 3001, 12e Avenue Nord, Sherbrooke, QC, Canada, J1H 5N4. ngaminingui@gmail.com
Source
Health Place. 2013 Mar;20:66-74
Date
Mar-2013
Language
English
Publication Type
Article
Keywords
Adolescent
Adult
Aged
Cohort Studies
Emigration and Immigration
Female
Humans
Male
Middle Aged
Quebec - epidemiology
Schizophrenia - diagnosis - epidemiology
Survival Analysis
Time Factors
Transients and Migrants - psychology
Young Adult
Abstract
Migration of patients with schizophrenia might influence health care access and utilization. However, the time between diagnosis and migration of these patients has not yet been explored. We studied the first migration between health territories of 6873 patients newly diagnosed with schizophrenia in Quebec in 2001, aiming to describe the pattern of migration and assess the influence of the place of residence on migration. Between 2001 and 2007, 34.5% of patients migrated between health territories; those living in metropolitan areas were more likely to migrate than others but tended to remain in metropolitan areas. Migrant patients were also more likely to stay in or migrate to the most socially or materially deprived territories.
PubMed ID
23376731 View in PubMed
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The economic burden of insomnia: direct and indirect costs for individuals with insomnia syndrome, insomnia symptoms, and good sleepers.

https://arctichealth.org/en/permalink/ahliterature152801
Source
Sleep. 2009 Jan;32(1):55-64
Publication Type
Article
Date
Jan-2009
Author
Meagan Daley
Charles M Morin
Mélanie LeBlanc
Jean-Pierre Grégoire
Josée Savard
Author Affiliation
Ecole de psychologie, Université Laval, Québec, Canada.
Source
Sleep. 2009 Jan;32(1):55-64
Date
Jan-2009
Language
English
Publication Type
Article
Keywords
Absenteeism
Accidents - economics
Adolescent
Adult
Aged
Aged, 80 and over
Alcoholic Beverages - economics
Cost-Benefit Analysis - statistics & numerical data
Drug Costs - statistics & numerical data
Efficiency
Female
Health Care Costs - statistics & numerical data
Health Surveys
Hospitalization - economics
Humans
Male
Middle Aged
Quebec
Questionnaires
Referral and Consultation - economics
Sleep Initiation and Maintenance Disorders - economics - therapy
Young Adult
Abstract
Insomnia is a highly prevalent problem that is associated with increased use of health care services and products, as well as functional impairments. This study estimated from a societal perspective the direct and indirect costs of insomnia.
A randomly selected sample of 948 adults (mean age = 43.7 years old; 60% female) from the province of Quebec, Canada completed questionnaires on sleep, health, use of health-care services and products, accidents, work absences, and reduced productivity. Data were also obtained from the Quebec government administered health insurance board regarding consultations and hospitalizations. Participants were categorized as having insomnia syndrome, insomnia symptoms or as being good sleepers using a standard algorithm. Frequencies of target cost variables were obtained and multiplied by unit costs to generate estimates of total costs for the adult population of the province of Quebec.
The total annual cost of insomnia in the province of Quebec was estimated at $6.6 billion (Cdn$). This includes direct costs associated with insomnia-motivated health-care consultations ($191.2 million) and transportation for these consultations ($36.6 million), prescription medications ($16.5 million), over the-counter products ($1.8 million) and alcohol used as a sleep aid ($339.8 million). Annual indirect costs associated with insomnia-related absenteeism were estimated at $970.6 million, with insomnia-related productivity losses estimated at $5.0 billion. The average annual per-person costs (direct and indirect combined) were $5,010 for individuals with insomnia syndrome, $1431 for individuals presenting with symptoms, and $421 for good sleepers.
This study suggests that the economic burden of insomnia is very high, with the largest proportion of all expenses (76%) attributable to insomnia-related work absences and reduced productivity. As the economic burden of untreated insomnia is much higher than that of treating insomnia, future clinical trials should evaluate the cost-benefits, cost-utility, and cost-effectiveness of insomnia therapies.
Notes
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PubMed ID
19189779 View in PubMed
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Effect of drug utilization reviews on the quality of in-hospital prescribing: a quasi-experimental study.

https://arctichealth.org/en/permalink/ahliterature170264
Source
BMC Health Serv Res. 2006;6:33
Publication Type
Article
Date
2006
Author
Jean-Pierre Grégoire
Jocelyne Moisan
Louise Potvin
Isabelle Chabot
René Verreault
Alain Milot
Author Affiliation
Population Health Research Unit, Centre hospitalier affilié universitaire de Québec, 1050 Chemin Ste-Foy, Québec, Qc, G1S 4L8, Canada. jean-pierre.gregoire@pha.ulaval.ca
Source
BMC Health Serv Res. 2006;6:33
Date
2006
Language
English
Publication Type
Article
Keywords
Cisapride - therapeutic use
Concurrent Review
Control Groups
Drug Prescriptions - standards
Drug Utilization Review - methods
Gastrointestinal Agents - therapeutic use
Hospitals, Teaching - standards
Humans
Medical Audit
Pharmacy Service, Hospital
Physician's Practice Patterns
Quebec
Retrospective Studies
Abstract
Drug utilization review (DUR) programs are being conducted in Canadian hospitals with the aim of improving the appropriateness of prescriptions. However, there is little evidence of their effectiveness. The objective of this study was to assess the impact of both a retrospective and a concurrent DUR programs on the quality of in-hospital prescribing.
We conducted an interrupted time series quasi-experimental study. Using explicit criteria for quality of prescribing, the natural history of cisapride prescription was established retrospectively in three university-affiliated hospitals. A retrospective DUR was implemented in one of the hospitals, a concurrent DUR in another, whereas the third hospital served as a control. An archivist abstracted records of all patients who were prescribed cisapride during the observation period. The effect of DURs relative to the control hospital was determined by comparing estimated regression coefficients from the time series models and by testing the statistical significance using a 2-tailed Student's t test.
The concurrent DUR program significantly improved the appropriateness of prescriptions for the indication for use whereas the retrospective DUR brought about no significant effect on the quality of prescribing.
Results suggest a retrospective DUR approach may not be sufficient to improve the quality of prescribing. However, a concurrent DUR strategy, with direct feedback to prescribers seems effective and should be tested in other settings with other drugs.
Notes
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PubMed ID
16536865 View in PubMed
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Exploring the risk of diabetes mellitus and dyslipidemia among ambulatory users of atypical antipsychotics: a population-based comparison of risperidone and olanzapine.

https://arctichealth.org/en/permalink/ahliterature175614
Source
Pharmacoepidemiol Drug Saf. 2005 Jun;14(6):427-36
Publication Type
Article
Date
Jun-2005
Author
Jocelyne Moisan
Jean-Pierre Grégoire
Michel Gaudet
Dan Cooper
Author Affiliation
Faculty of Pharmacy, Université Laval, Québec, Que., Canada.
Source
Pharmacoepidemiol Drug Saf. 2005 Jun;14(6):427-36
Date
Jun-2005
Language
English
Publication Type
Article
Keywords
Adolescent
Adult
Ambulatory Care - statistics & numerical data
Antipsychotic Agents - adverse effects - therapeutic use
Benzodiazepines - adverse effects - therapeutic use
Cohort Studies
Databases, Factual - statistics & numerical data
Diabetes Mellitus - chemically induced - epidemiology
Drug Utilization - statistics & numerical data
Female
Humans
Hyperlipidemias - chemically induced - epidemiology
Incidence
Insurance, Pharmaceutical Services - statistics & numerical data
Male
Middle Aged
Quebec - epidemiology
Risk Assessment - methods
Risk factors
Risperidone - adverse effects - therapeutic use
Survival Analysis
Abstract
To compare the incidence rates of diabetes mellitus and dyslipidemia in ambulatory first-time users of risperidone and olanzapine.
The database for the Prescription Drug Insurance Plan in the province of Quebec was used as the data source for a population-based cohort study. Denominalized data were extracted for all ambulatory patients who first received an atypical antipsychotic between 1 January 1997 and 31 August 1999. Eligible patients were categorized as taking: no antidiabetic medication; no lipid reducing medication; neither type of medication. Those who started to use an outcome drug (an antidiabetic or lipid-lowering medication) before the end of the follow-up period (31 August 2000) were considered to have developed the corresponding outcome disease. Incidence rate ratios (IRR) (and 95% confidence intervals) for initiating antihyperglycemic or lipid-lowering drug treatment, or both were calculated. Outcomes on risperidone were compared to those on olanzapine.
A total of 19 582 eligible patients were included in the analysis. Relative to risperidone, olanzapine was associated with a higher risk of initiating a pharmacologic treatment for diabetes [IRR: 1.33 (1.03-1.74)], dyslipidemia [IRR: 1.49 (1.22-1.83)], or either condition [1.47 (1.23-1.76)].
Olanzapine seems to be associated with a higher risk of developing diabetes and/or dyslipidemia than risperidone. Further prospective studies are needed to rigorously assess the safety of olanzapine.
PubMed ID
15786513 View in PubMed
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Factors associated with long-term benzodiazepine use among elderly women and men in Quebec.

https://arctichealth.org/en/permalink/ahliterature160189
Source
J Women Aging. 2007;19(3-4):37-52
Publication Type
Article
Date
2007
Author
Dany Fortin
Michel Préville
Claire Ducharme
Réjean Hébert
Lise Trottier
Jean-Pierre Grégoire
Jacques Allard
Anick Bérard
Author Affiliation
Research Centre on Aging, Sherbrooke University Geriatric Institute, Sherbrooke, QC, Canada J1H 4C4. Dany.Fortin@Usherbrooke.ca
Source
J Women Aging. 2007;19(3-4):37-52
Date
2007
Language
English
Publication Type
Article
Keywords
Aged
Anti-Anxiety Agents - administration & dosage
Anxiety - drug therapy - epidemiology
Anxiety Disorders - drug therapy - epidemiology
Benzodiazepines - administration & dosage
Drug Administration Schedule
Drug Utilization
Female
Health Knowledge, Attitudes, Practice
Health status
Humans
Male
Mental health
Quebec - epidemiology
Regression Analysis
Sex Distribution
Abstract
The goal of this study was to compare factors associated with long-term benzodiazepine use by elderly women and men (n = 1701) who participated in the Quebec Health Survey (QHS). Data from the 1998 QHS were linked with data from the administrative files of the Régie de l'assurance maladie du Québec. Results showed that elderly women were more at risk than men for long-term benzodiazepine use. Results of the multivariate logistic regression did not show a significant difference between women and men on any of the risk factors studied. Other factors such as elderly and physician attitudes deserve further study to explain differences in long-term benzodiazepine use between elderly women and men.
PubMed ID
18032252 View in PubMed
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24 records – page 1 of 3.