Browsing Public Health Sciences, Department of by Title
Now showing items 2-21 of 210
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Acculturation and Health Experiences Among Young Immigrant Canadians
(2015-04-23)This thesis investigates the measurement of acculturation, and the effects of acculturation on obesity, physical activity and sedentary behaviour, among Canadian youth. It consists of four manuscripts. The first manuscript ... -
Active Transportation to School Among Canadian Youth: an Exploration of Correlates and Associated Injury
(2012-08-13)Background: Active transportation refers to methods of travel that involve physical activity, such as walking and bicycling. For students, characteristics of both individual and contextual environments are likely associated ... -
The Acute Effects of Ambient Temperature Exposure on Mental Illness Related Emergency Room Visits in the City of Toronto
(2013-05-27)Objectives: The purpose of this study was to assess the effects of extreme ambient temperature on hospital emergency room (ER) visits related to mental and behavior disorders in Toronto, Canada. Methods: A time series ... -
Adiposity, Sex Hormones, and Repetitive Element DNA Methylation in Healthy Postmenopausal Women
(2016-08-09)INTRODUCTION: Low levels of methylation within repetitive DNA elements, such as long interspersed nuclear element-1 (LINE-1) and Alu repeats, are believed to epigenetically predispose an individual to cancer and other ... -
Aging with intellectual and developmental disabilities: the effect of frailty and health instability in home care users on admission to long-term care
(2015-09-08)BACKGROUND: An increasingly large proportion of adults with intellectual and developmental disabilities are frail. Measuring frailty is challenging, and generic measures of frailty inaccurately identify frailty in this ... -
Air pollution and health: distribution and determinants of exposure in Montreal, Quebec with a focus on polycyclic aromatic hydrocarbon assessment
(2013-07-30)Background: The International Agency for Research on Cancer has classified diesel exhaust as a carcinogen, and specific polycyclic aromatic hydrocarbons (PAHs) as probable carcinogens. Urban air pollution is one source of ... -
Applying epidemiologic concepts and principles to explore factors associated with error detection by radiotherapy quality assurance processes
Background: Incident Learning System (ILS) data are used by radiotherapy (RT) quality assurance (QA) programs for the purpose of improving quality and safety of RT delivery for patients. The objectives of this thesis ... -
Assessing the Effectiveness of Palliative Chemotherapy for Non-Small Cell Lung Cancer: a Phase IV Study of Patients Treated at Ontario’s Cancer Centres
(2012-04-23)Background: Randomized controlled trials (RCTs) are the gold standard for assessing the efficacy of a medical treatment. However, the efficacy demonstrated by trials does not automatically translate into a comparable ... -
Assessing the Geographic and Socioeconomic Determinants of Private Well Water Testing Practices in Southern Ontario
Purpose: An estimated 4.3 million Canadians use private wells for daily water consumption, however well testing rates are declining, potentially resulting in an increased risk of exposure to groundwater contaminants ... -
Assessing the Risk for Autoimmune Disorders Following Use of the Quadrivalent Human Papillomavirus Vaccine: the Ontario Grade 8 HPV Vaccine Cohort Study
(2014-04-24)Introduction: In 2007 Ontario implemented a grade 8 quadrivalent human papillomavirus (qHPV) vaccination program targeting the virus that causes cervical cancer. Despite being 6 years post-implementation, few post-licensure ... -
Assessment of the Use of a Work-Related Asthma Screening Questionnaire in a Primary Care Asthma Program
(2012-09-28)Background: Work-related asthma (WRA) is under-recognized and early detection is associated with improved outcomes. The Work-related Asthma Screening Questionnaire (Long-version) (WRASQ(L)) is a 14-item tool designed to ... -
The association between area- and individual-level risk factors and chlamydia infection a sexual health clinic
Background: Chlamydia is the most common sexually transmitted infection (STI) in Canada. Although the literature has focused on individual-level risk factors as the greatest determinants for chlamydia infection, more recent ... -
The Association between Nutritional Adequacy and Long-term Outcomes in Critically Ill Patients Requiring Prolonged Mechanical Ventilation
(2013-09-29)Background: While the provision of adequate nutrition support in critically ill patients has been shown to have an impact on short-term clinical outcomes, relatively little is known about subsequent long-term outcomes. We ... -
Association between Proposed Quality of Care Indicators and Long-Term Outcomes for Men with Localized Prostate Cancer
(2011-09-08)Background: We evaluated the validity of a set of 11 quality indicators for prostate cancer radiotherapy and radical prostatectomy by examining their association with outcomes. The selected indicators were: hospital volume, ... -
The Association between the UGT2B17 Gene Deletion and Menopause-Related Quality of Life in Postmenopausal Women in the CCTG MAP.3 Breast Cancer Chemoprevention Trial
Background: Mammary Prevention.3 (MAP.3) was a randomized placebo controlled trial of exemestane for breast cancer prevention. Participants commonly experienced vasomotor symptoms, such as hot flashes. Exemestane is ... -
Association between Use of a Specialized Diagnostic Assessment Unit and the Diagnostic Interval in Ontario Breast Cancer Patients
(2013-11-18)Background: The amount of time that it takes to get a breast cancer diagnosis is very important to patients. The Ontario diagnostic assessment unit (DAU) is designed to improve the quality and timeliness of care during a ... -
The association between usual health care utilization and stage at diagnosis in laryngeal cancer
(2012-04-26)Background: A significant number of laryngeal cancer patients are diagnosed with advanced-stage disease. Since stage at diagnosis is an important prognostic factor, it is necessary to understand the characteristics of ... -
The associations between estrogens, the UGT2B17 gene deletion, and health-related quality of life in postmenopausal women in the MAP.3 chemoprevention trial
Background: Natural depletions of estrogens during menopause are likely associated with symptoms and declines in health-related quality of life (HRQL). For women taking exemestane in the Mammary Prevention 3 (MAP.3) trial, ... -
Associations Between Exposures to Nature and the Occurrence of Psychosomatic Symptoms Among Canadian Adolescents
Background: Spending time outdoors and connecting with nature are beneficial for the physical and mental health of humans. Nature has been associated with promotion of positive mental health through stress reduction and ... -
Availability and Quality of Colonoscopy Resources and the Colorectal Cancer Diagnostic Interval
Background: There is concern that patients are waiting too long to be diagnosed with colorectal cancer (CRC) after presenting to the healthcare system. Previous research has found issues with the availability and quality ...