Susan E. McGregor

Learn More
A population-based case-control study of physical activity and prostate cancer risk was conducted in Alberta, Canada, between 1997 and 2000. A total of 988 incident, histologically confirmed cases of stage T2 or greater prostate cancer were frequency matched to 1,063 population controls. The Lifetime Total Physical Activity Questionnaire was used to measure(More)
Dietary patterns derived by cluster analysis are commonly reported with little information describing how decisions are made at each step of the analytical process. Using food frequency questionnaire data obtained in 2001-2007 on Albertan men (n = 6,445) and women (n = 10,299) aged 35-69 years, the authors explored the use of statistical approaches to(More)
BACKGROUND Despite the high global prevalence of prostate cancer (PCa), few epidemiologic studies have assessed physical activity in relation to PCa survival. OBJECTIVE To evaluate different types, intensities, and timing of physical activity relative to PCa survival. DESIGN, SETTING, AND PARTICIPANTS A prospective study was conducted in Alberta,(More)
BACKGROUND Preventive health care programs can save lives and contribute to a better quality of life by diagnosing serious medical conditions early. The Preventive Health Care Facility Location (PHCFL) problem is to identify optimal locations for preventive health care facilities so as to maximize participation. When identifying locations for preventive(More)
BACKGROUND The Canadian Task Force on Preventive Health Care (CTFPHC), in 2001, concluded that there is good evidence to include annual or biennial fecal occult blood testing (FOBT) and fair evidence to include flexible sigmoidoscopy in the periodic health examination of asymptomatic adults more than 50 years of age. METHODS Mailed survey of Alberta(More)
There is a growing interest in the application of preferences to inform healthcare planning and delivery. Clinical practice guidelines are encouraging incorporation of preferences in patient management choices in recognition that often no single approach is best.The objective of this focused review is to provide an overview of the current state of(More)
Accumulating evidence highlights the human papillomavirus (HPV) as a risk factor for cervical adenocarcinoma. However, the part played by the HPV in predicting tumor outcome or the increasing frequency of cervical adenocarcinoma is incompletely studied. In a retrospective study the association between HPV status and the clinicopathological characteristics(More)
In a large cage, free-flying western white-winged doves, nectar-feeding Leptonycteris bats, and honey bees were each effective as cross-pollinators of self-sterile saguaro flowers. Seed production and seed viability were not significantly different in fruit from flowers pollinated by these agents. Pollination is not a limiting factor in saguaro repopulation.
Oncology nurses working with hematology patients at the Tom Baker Cancer Centre questioned the need for twice daily flushings of central venous catheters. The nurses speculated that weekly flushings would be more convenient for patients, maintain patency, reduce risk of infections, and save the costs of supplies and nursing time. In 1986, the nurses, in(More)
A cross-over study was designed to determine whether the type of spatula used to collect cervical cells influences the ability of dot-blot hybridization to detect HPV DNA. Fifty-nine patients had a cervical scrape with a wood spatula first and a plastic spatula second: 60 were scraped in the inverse order. The order of sampling did not affect the HPV DNA(More)