Browsing by Author "McGregor, S. Elizabeth"

Now showing 1 - 4 of 4
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    Determinants of Physical Activity in a Cohort of Prostate Cancer Survivors
    (2018-07-24) Stone, Chelsea Rose; Friedenreich, Christine Marthe; Courneya, Kerry S.; McGregor, S. Elizabeth; Li, Haocheng
    Background: Physical activity has been shown to improve overall health, improve cancer outcomes and reduce all-cause mortality as well as prostate cancer specific mortality after diagnosis, however a cancer diagnosis can often cause a change in physical activity patterns. Current guidelines recommend 150 minutes per week of physical activity and the determinants of meeting these guidelines before and after a prostate cancer diagnosis are widely unknown. Objectives: Our first objective was to examine the determinants of meeting physical activity guidelines at pre-diagnosis and three time-points post-diagnosis. Our second objective was to examine the determinants of patterns of meeting guidelines from pre-diagnosis to two years post-diagnosis. The final objective was to examine determinants of patterns of long-term physical activity behaviours from pre-diagnosis to an average measure of post-diagnosis physical activity. Methods: This prospective cohort study included 830 prostate cancer patients who participated in a population-based case-control study between November 1997 and December 2000 in Alberta, Canada. Pre-diagnosis activity levels were self-reported at diagnosis and again at three time points post-diagnosis. Demographic, quality of life and lifestyle variables were collected by questionnaires, while medical chart abstractions were performed to capture clinical variables. Results: Active smoking status, poor physical health and rural living location were commonly found to be statistically significantly associated with failing to meet physical activity guidelines in cross-sectional analyses and in analyses examining patterns of behaviour from pre- to post-diagnosis. Conclusions: Demographic, health and lifestyle variables are associated with meeting or not meeting physical activity guidelines from pre-diagnosis to post-diagnosis. Programming should be aimed at offering survivors support to overcome determinants associated with decline in physical activity patterns.
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    Optimization of preventive health care facility locations
    (BioMed Central, 2010-03-18) Gu, Wei; Wang, Xin; McGregor, S. Elizabeth
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    Post-colorectal cancer screening: knowledge and understanding
    (2007) Walker, Robin L.; Hilsden, Robert; McGregor, S. Elizabeth
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    Quality of Life After Prostate Cancer Diagnosis: A Longitudinal Prospective Cohort Study in Alberta, Canada
    (2016) Farris, Megan; Friedenreich, Christine Marthe; Courneya, Kerry; Kopciuk, Karen; McGregor, S. Elizabeth
    OBJECTIVES: First, we examined the associations of post-diagnosis physical activity and change in pre-diagnosis physical activity on quality of life (QoL) in prostate cancer survivors. Then, we identified post-prostate cancer diagnosis QoL trajectories over time in the population. METHODS: 830 prostate cancer survivors were derived from a prior case-control study where information at diagnosis was collected, then survivors were re-consented into a follow-up study. Three repeated measurements of physical activity and QoL were undertaken post-diagnosis. RESULTS: We observed improvements in physical QoL in prostate cancer survivors who maintained or adopted higher levels of physical activity pre- and post-diagnosis, according to the cancer prevention physical activity guidelines compared to those who were non-exercisers. In the trajectory analysis, three physical and three mental trajectory groups were identified. CONCLUSION: With additional research, these established trajectory groups may help healthcare professionals in improving treatment and follow-up for this population of prostate cancer survivors.