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https://www.readbyqxmd.com/read/28425216/pneumonia-risk-in-asthma-patients-using-inhaled-corticosteroids-a-quasi-cohort-study
#1
Christina J Qian, Janie Coulombe, Samy Suissa, Pierre Ernst
AIM: Studies have linked the use of inhaled corticosteroids (ICS) to excess pneumonia risk in COPD patients. The risk in asthma patients remains unclear. The objective was to examine the risk of pneumonia with ICS in patients 12 to 35 years old with asthma. METHODS: We formed a cohort of asthma patients treated from 1990-2007 using Quebec health insurance databases. Subjects were considered currently exposed if they had an ICS dispensed within the 60 days prior to their pneumonia index event or matched person-moment...
March 28, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28424259/maternal-vitamin-d-insufficiency-early-in-pregnancy-is-associated-with-increased-risk-of-preterm-birth-in-ethnic-minority-women-in-canada
#2
Negar Tabatabaei, Nathalie Auger, Catherine M Herba, Shuqin Wei, Catherine Allard, Guy D Fink, William D Fraser
Background: Maternal vitamin D insufficiency (plasma 25-hydroxyvitamin D [25(OH)D] <75 nmol/L) may play a role in ethnic disparities in rates of preterm and spontaneous preterm births.Objective: We explored the relation between maternal plasma 25(OH)D concentration in the first trimester (8-14 wk of gestation) and the risk of preterm and spontaneous preterm births (<37 wk of gestation) by ethnicity.Methods: We designed a case-control study that included 120 cases of preterm birth (<37 wk of gestation) and 360 term controls (≥37 wk of gestation) of singleton pregnancies from the 3D cohort, a multicenter study in 2456 pregnant women in Quebec, Canada...
April 19, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28424105/specific-impact-of-stimulant-alcohol-and-cannabis-use-disorders-on-first-episode-psychosis-2-year-functional-and-symptomatic-outcomes
#3
C Ouellet-Plamondon, A Abdel-Baki, É Salvat, S Potvin
BACKGROUND: Many studies have concluded that cannabis use disorder (CUD) negatively influences outcomes in first-episode psychosis (FEP). However, few have taken into account the impact of concurrent misuse of other substances. METHODS: This 2-year, prospective, longitudinal study of FEP patients, aged between 18 and 30 years, admitted to early intervention programs in Montreal, Quebec, Canada, examined the specific influence of different substance use disorders (SUD) (alcohol, cannabis, cocaine, amphetamines) on service utilization, symptomatic and functional outcomes in FEP...
April 20, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28421914/seeing-the-forest-but-not-the-trees-heterogeneity-in-community-size-effects-in-canadian-ice-hockey-players
#4
N Wattie, J Schorer, J Baker
The community size effect (or birthplace effect) suggests that high-performance athletes are less likely to emerge from regions with population sizes that are very small or very large. However, previous research on elite Canadian ice hockey players has not considered the influence of intra-national regional variation of population distributions with respect to community size effects. Therefore, the purpose of the current study was to test the heterogeneity of the community size effect between Canadian National Hockey League draftees (2000-2014: n = 1505), from 7 provincial regions within Canada (i...
April 19, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28419594/catheter-ablation-for-the-treatment-of-atrial-fibrillation-is-associated-with-a-reduction-in-health-care-resource-utilization
#5
Michelle Samuel, Meytal Avgil Tsadok, Jacqueline Joza, Hassan Behlouli, Atul Verma, Vidal Essebag, Louise Pilote
BACKGROUND: Catheter ablation (CA) is superior to antiarrhythmic therapy at reducing recurrence of atrial fibrillation (AF); however, there is limited data regarding whether this decrease translates into a reduction in health care resource utilization. OBJECTIVE: To evaluate the impact of AF ablation on long-term health care resource utilization. METHODS: A population-based cohort was constructed to include patients who underwent CA for AF in Quebec, Canada between April 2005 and March 2011...
April 17, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28419508/experience-of-carrier-couples-identified-through-a-population-based-carrier-screening-pilot-program-for-four-founder-autosomal-recessive-diseases-in-saguenay-lac-saint-jean
#6
Jessica Tardif, Annabelle Pratte, Anne-Marie Laberge
A pilot population-based carrier screening program started in 2010 in the Saguenay-Lac-Saint-Jean region of Quebec, Canada for four recessive diseases with local founder effects (tyrosinemia type I, ARSACS, congenital lactic acidosis, and Andermann syndrome). OBJECTIVES: Describe the experience of carrier couples identified through this program. METHODS: Semi-structured interviews were performed with carrier couples. Thematic analysis of interview transcripts was done to identify emerging themes...
April 18, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28418431/body-burdens-sources-and-interrelations-of-selected-toxic-and-essential-elements-among-the-nine-cree-first-nations-of-eeyou-istchee-james-bay-region-of-northern-quebec-canada
#7
Evert Nieboer, Ian D Martin, Eric N Liberda, Eric Dewailly, Elizabeth Robinson, Leonard J S Tsuji
BACKGROUND: this article constitutes a report on the comprehensive Nituuchischaayihtitaau Aschii multi-community environment-and-health study conducted among the Cree peoples (Eeyouch) of northern Quebec, Canada. OBJECTIVES: to interpret observed concentrations of a suite of chemical elements in a multi-media biological monitoring study in terms of sources and predictors. METHODS: the concentrations of 5 essential and 6 toxic chemical elements were measured in whole blood, and/or in urine or hair by ICP-MS...
April 18, 2017: Environmental Science. Processes & Impacts
https://www.readbyqxmd.com/read/28417994/trends-in-epidemiology-of-pediatric-inflammatory-bowel-disease-in-canada-distributed-network-analysis-of-multiple-population-based-provincial-health-administrative-databases
#8
Eric I Benchimol, Charles N Bernstein, Alain Bitton, Matthew W Carroll, Harminder Singh, Anthony R Otley, Maria Vutcovici, Wael El-Matary, Geoffrey C Nguyen, Anne M Griffiths, David R Mack, Kevan Jacobson, Nassim Mojaverian, Divine Tanyingoh, Yunsong Cui, Zoann J Nugent, Janie Coulombe, Laura E Targownik, Jennifer L Jones, Desmond Leddin, Sanjay K Murthy, Gilaad G Kaplan
OBJECTIVES: The incidence of pediatric-onset inflammatory bowel disease (IBD) is increasing worldwide. We used population-based health administrative data to determine national Canadian IBD incidence, prevalence, and trends over time of childhood-onset IBD. METHODS: We identified children <16 years (y) diagnosed with IBD 1999-2010 from health administrative data in five provinces (Alberta, Manitoba, Nova Scotia, Ontario, Quebec), comprising 79.2% of the Canadian population...
April 18, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28416901/mechanical-efficiency-in-children-with-different-body-weight-a-longitudinal-assessment-of-the-quality-cohort
#9
G Jabbour, A Tremblay, M Henderson, M-E Mathieu
Net mechanical efficiency (MEnet), which reflects the body's ability to transfer energy above resting levels in external work, is similar in young children regardless of their body weights. However, it is unclear whether MEnet remains stable during growth and maturation. We sought to determine whether net mechanical efficiency (MEnet) changes over a period of 3 years in children and to identify the factors associated with possible changes. A total of 169 children participating in the QUALITY (Quebec Adipose and Lifestyle InvesTigation in Youth) cohort completed an incremental cycling test, resulting in the same maximal power output during both visits...
March 2017: Biology of Sport
https://www.readbyqxmd.com/read/28415890/correction-to-deep-genealogical-analysis-of-a-large-cohort-of-participants-in-the-cartagene-project-quebec-canada
#10
(no author information available yet)
No abstract text is available yet for this article.
April 18, 2017: Annals of Human Biology
https://www.readbyqxmd.com/read/28412641/the-gap-between-entitlement-and-access-to-healthcare-an-analysis-of-candidacy-in-the-help-seeking-trajectories-of-asylum-seekers-in-montreal
#11
Liana E Chase, Janet Cleveland, Jesse Beatson, Cécile Rousseau
In 2012 the Canadian government made significant cuts to its historically strong federal refugee health coverage plan. While this policy had negligible effects on the level of coverage provided to asylum seekers in Quebec, there is evidence that this group nonetheless experienced reduced healthcare access during the period of polarized national debate that ensued. This study engaged the "candidacy" model of healthcare access to illuminate factors contributing to the observed gap between entitlement and access...
March 21, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28412525/liver-microbiome-of-peromyscus-leucopus-a-key-reservoir-host-species-for-emerging-infectious-diseases-in-north-america
#12
A André, A Mouton, V Millien, J Michaux
Microbiome studies generally focus on the gut microbiome, which is composed of a large proportion of commensal bacteria. Here we propose a first analysis of the liver microbiome using next generation sequencing as a tool to detect potentially pathogenic strains. We used Peromyscus leucopus, the main reservoir host species of Lyme disease in eastern North America, as a model and sequenced V5-V6 regions of the 16S gene from 18 populations in southern Quebec (Canada). The Lactobacillus genus was found to dominate the liver microbiome...
April 12, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28411319/fifty-year-spatiotemporal-analysis-of-landscape-changes-in-the-mont-saint-hilaire-unesco-biosphere-reserve-quebec-canada
#13
Marc Béliveau, Daniel Germain, Ana-Neli Ianăş
Diachronic analysis with a GIS-based classification of land-use changes based on aerial photographs, orthophotos, topographic maps, geotechnical reports, urban plans, and using landscape metrics has permitted insight into the driving forces responsible for landscape fragmentation in the Mont Saint-Hilaire (MSH) Biosphere Reserve over the period 1958-2015. Although the occurrence of exogenous factors, such as extreme weather and fires, can have a significant influence on the fragmentation of the territory in time and space, the accelerated development of the built environment (+470%) is nevertheless found to be primarily responsible for landscape fragmentation and the loss of areas formerly occupied by orchards, agriculture, and woodlands...
May 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28410358/reactivation-of-herpes-zoster-keratitis-with-corneal-perforation-after-zoster-vaccination
#14
Andre Jastrzebski, Seymour Brownstein, Setareh Ziai, Solin Saleh, Kay Lam, W Bruce Jackson
PURPOSE: We present a case of reactivated herpes zoster keratouveitis of 6 years duration with corneal perforation requiring penetrating keratoplasty shortly after inoculation with herpes zoster vaccine (Zostavax, Merck, Quebec, Canada). METHODS: Retrospective case report. RESULTS: A 67-year-old woman with a 5-year history of recurrent unilateral herpes zoster keratouveitis in her right eye presented with another recurrence 2 weeks after Zostavax vaccination...
April 12, 2017: Cornea
https://www.readbyqxmd.com/read/28409367/the-effect-of-health-system-factors-on-outcomes-and-costs-after-bariatric-surgery-in-a-universal-healthcare-system-a-national-cohort-study-of-bariatric-surgery-in-canada
#15
Aristithes G Doumouras, Fady Saleh, Sama Anvari, Scott Gmora, Mehran Anvari, Dennis Hong
INTRODUCTION: Previous data demonstrate that patients who receive bariatric surgery at a Center of Excellence are different than those who receive care at non-accredited centers. Canada provides a unique opportunity to naturally exclude confounders such as insurance status, hospital ownership, and lack of access on comparisons between hospitals and surgeons in bariatric surgery outcomes. The objective of this study was to determine the effect of hospital accreditation and other health system factors on all-cause morbidity after bariatric surgery in Canada...
April 13, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28406342/modelling-the-effect-of-perceived-interdependence-among-mental-healthcare-professionals-on-their-work-role-performance
#16
Marie-Pierre Markon, François Chiocchio, Marie-Josée Fleury
The purpose of mental healthcare system reform was to enhance service efficiency by strengthening primary mental healthcare and increasing service integration in communities. Reinforcing interprofessional teamwork also intended to address the extensive and multidimensional needs of patients with mental disorders by bringing together a broader array of expertise. In this context, mental healthcare professionals (MHCPs) from various health and social care professions are more interdependent in many aspects of their work (tasks, resources, and goals)...
April 13, 2017: Journal of Interprofessional Care
https://www.readbyqxmd.com/read/28404721/family-medicine-residents-training-in-knowledge-about-and-perceptions-of-digital-rectal-examination
#17
Annick Bussières, Alexandre Bouchard, David Simonyan, Sebastien Drolet
OBJECTIVE: To evaluate family medicine residents' training in, knowledge about, and perceptions of digital rectal examination (DRE). DESIGN: Descriptive study, using an online survey that was available in French and English. SETTING: Quebec. PARTICIPANTS: A total of 217 residents enrolled in a family medicine program. MAIN OUTCOME MEASURES: Residents' demographic characteristics; the DRE teaching they received throughout their medical training; their reasons for omitting DRE; their recognition of DRE indications (strong vs weak) and application of DRE for 10 anorectal complaints; and their perceptions of the overall quality of the DRE training they received...
April 2017: Canadian Family Physician Médecin de Famille Canadien
https://www.readbyqxmd.com/read/28403655/prevalence-mortality-and-health-care-use-among-patients-with-cluster-b-personality-disorders-clinically-diagnosed-in-quebec
#18
Lionel Cailhol, Éric Pelletier, Louis Rochette, Lise Laporte, Pierre David, Évens Villeneuve, Joel Paris, Alain Lesage
BACKGROUND: Cluster B personality disorders (PDs) are prevalent mental health conditions in the general population (1%-6% depending on the subtype and study). Affected patients are known to be heavier users of both mental and medical health care systems than patients with other clinical conditions such as depression. METHODS: Several rates were estimated using data from the integrated monitoring system for chronic diseases in the province of Quebec, Canada. It provides a profile of annual and period prevalence rates, mortality rates, and years of lost life as well as health care utilisation rates for Quebec residents...
January 1, 2017: Canadian Journal of Psychiatry. Revue Canadienne de Psychiatrie
https://www.readbyqxmd.com/read/28401143/impact-of-abiraterone-acetate-with-and-without-prior-docetaxel-chemotherapy-on-the-survival-of-patients-with-metastatic-castration-resistant-prostate-cancer-a-population-based-study
#19
Joice Rocha, Armen G Aprikian, Marie Vanhuyse, Fabio L Cury, Jason Hu, Noémie Prévost, Alice Dragomir
BACKGROUND: Abiraterone acetate was introduced in Quebec in 2012 for the treatment of metastatic castration-resistant prostate cancer (mCRPC) in patients who had received chemotherapy with docetaxel. This study describes abiraterone use in the early postapproval period and its clinical effectiveness in Quebec, for both patients who had received docetaxel chemotherapy and those who could not receive docetaxel therapy owing to medical reasons. METHODS: A retrospective cohort study was conducted using Quebec public health care administrative databases...
January 2017: CMAJ Open
https://www.readbyqxmd.com/read/28401140/the-canadian-minimum-dataset-for-chronic-low-back-pain-research-a-cross-cultural-adaptation-of-the-national-institutes-of-health-task-force-research-standards
#20
Anaïs Lacasse, Jean-Sébastien Roy, Alexandre J Parent, Nioushah Noushi, Chúk Odenigbo, Gabrielle Pagé, Nicolas Beaudet, Manon Choinière, Laura S Stone, Mark A Ware
BACKGROUND: To better standardize clinical and epidemiological studies about the prevalence, risk factors, prognosis, impact and treatment of chronic low back pain, a minimum data set was developed by the National Institutes of Health (NIH) Task Force on Research Standards for Chronic Low Back Pain. The aim of the present study was to develop a culturally adapted questionnaire that could be used for chronic low back pain research among French-speaking populations in Canada. METHODS: The adaptation of the French Canadian version of the minimum data set was achieved according to guidelines for the cross-cultural adaptation of self-reported measures (double forward-backward translation, expert committee, pretest among 35 patients with pain in the low back region)...
January 2017: CMAJ Open
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