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A Canadian peer-reviewed journal of population health and health services research
December 2018
Comparison of self-reported and accelerometer-measured physical activity in Canadian adults
by Rachel C. Colley, Gregory Butler, Didier Garriguet, Stephanie A. Prince and Karen C. Roberts
The Canadian Physical Activity Guidelines (PAG) for adults (⋝ 150 minutes per week of moderate-to-vigorous physical activity [MVPA] in bouts of ⋝ 10 minutes) are supported by a large body of evidence, which indicates that physical activity is associated with a reduced risk of chronic disease and all-cause mortality. The inclusion of devices to objectively measure physical activity as part of national population health surveys in Canada has broadened the scope of options for physical activity surveillance. However, the lack of agreement between measured and self-reported estimates of physical activity has created a surveillance challenge. Data from the 2016 Canadian Community Health Survey (CCHS)indicate that almost half of Canadian adults report that they were at least moderately active in their leisure time, whereas accelerometer-measured data from the 2014-to-2015 Canadian Health Measures Survey (CHMS) indicate that only 17% meet the current PAG. Differences in the presence of, and degree of association between, self-reported and accelerometer-measured physical activity as this relates to health add an additional challenge to reconciling the differences between methods.
Abstract Full article PDF version The Daily release
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Comparison of self-reported and accelerometer-measured physical activity in Canadian adults
- Colley RC, Garriguet D, Janssen I, et al. Physical activity of Canadian adults: Accelerometer results from the 2007-2009 Canadian Health Measures Survey. Health Reports 2011; 22(1): 7-14.
- Garriguet D, Colley RC. A comparison of self-reported leisure-time physical activity and measured moderate to vigorous physical activity in adolescents and adults. Health Reports 2014; 25(7):3-11.
- Garriguet D, Tremblay S, Colley RC. Comparison of physical activity adult questionnaire with accelerometer data. Health Reports 2015; 26(7):11-17.
Prevalence of insomnia for Canadians aged 6 to 79
by Jean-Philippe Chaput, Jessica Yau, Deepa P. Rao and Charles M. Morin
Insomnia is the most prevalent sleep disorder and affects a large proportion of the population on a situational, recurrent or chronic basis. Insomnia is predominantly characterized by dissatisfaction with sleep and difficulties initiating or maintaining sleep, along with substantial distress and impairments of daytime functioning. Persistent insomnia has been associated with adverse health outcomes, including reduced quality of life and physical and psychological morbidity. In Canada, the individual economic burden of insomnia is estimated at $5,010 per person per year, with nearly 90% of this amount attributed to indirect costs such as work absenteeism and reduced productivity. Despite its high prevalence and burden, insomnia is often unrecognized and untreated because of barriers to its assessment and management. There is a clear need to develop more cost-effective, efficient and accessible therapies for insomnia.
Abstract Full article PDF version The Daily release
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Cancer in Canada: Stage at diagnosis
by Shirley Bryan, Huda Masoud, Hannah K. Weir, Ryan Woods, Gina Lockwood, Leah Smith, James Brierley, Mary Gospodarowicz and Nadine Badets
Cancer stage is an important indicator of the progression of the disease and is used to plan treatment programs. Aggregate statistics on cancer incidence by stage can be used by healthcare providers, researchers and policy analysts to identify trends in diagnosis by cancer site and to evaluate the effectiveness of early detection programs.
Abstract Full article PDF version The Daily release
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- Statistics Canada. Cancer Screening, 2017. Health Fact Sheets. Available at: https://www150.statcan.gc.ca/n1/pub/82-625-x/2018001/article/54977-eng.htm. Accessed July 10, 2018.
- Statistics Canada. Cancer by stage: Breast and prostate. Infographic (Statistics Canada catalogue 11-627-M. August, 2018. Available at https://www150.statcan.gc.ca/n1/pub/11-627-m/11-627-m2018021-eng.htm.
- Ellison LF. Progress in net cancer survival in Canada over 20 years. Health Reports 2018; 29(9): 10-18.
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