Regional Comparisons of Associations Between Physical Activity Levels and Cardiovascular Disease: The Story of Atlantic Canada

Journal: Canadian Journal of Cardiology Authors: Bartosz Orzel, Melanie Keats, Yunsong Cui, Scott Grandy Abstract: Background Physical inactivity is an important risk factor for cardiovascular disease (CVD). Atlantic Canada is a region with lower physical activity (PA) levels and poorer CVD outcomes than the rest of Canada. Yet, within-region variation is expected. This study aimed to assess the association between PA and CVD and how this relationship varied on a regional level. Methods: This cross-sectional study used data from the Atlantic Partnership for Tomorrow’s Health (PATH) Study. The cohort included 823 CVD cases and 2469 age, sex, and province of residence matched controls between the ages 35-69. Data collected included self-reported CVD and PA levels, as well as information on sociodemographic characteristics, health status, and lifestyle behaviours. Simple and multiple logistic regression were used to assess the association between PA and CVD. Results High PA levels were associated with a 26% reduction in the mean probability of CVD compared to low PA levels across the total population. Compared to high PA levels, moderate and low PA levels were associated with increased odds of CVD across all four provinces. However, regional variation was observed, with higher odds of CVD for low-to-moderate PA levels in Newfoundland and Labrador (NL) and New Brunswick (NB) compared to Nova Scotia (NS) and Prince Edward Island (PEI). Conclusions Atlantic Canadians experience regional inequalities in the association between PA and CVD. Future work needs to explore underlying pathways driving these regional differences, which may be the impetus for interventions that mitigate risk and CVD burden in populations of greatest need. https://doi.org/10.1016/j.cjco.2021.01.007

An Examination of the Role of Socioeconomic Status in the Relationship between Depression and Prostate Cancer Survivorship in a Population-Based Sample of Men from Atlantic Canada

Journal: Oncology Authors: Gabriela Ilie, Robert Rutledge, Ellen Sweeney Abstract: Objective: Prostate and skin cancer are among the most prevalent forms of cancer among men and have favorable survival rates compared to other, more aggressive forms of cancers. Recent studies have shown that the odds of depression among men with a lifetime history of prostate cancer are higher compared to men without a lifetime history of prostate cancer. Here we extend previous findings and examine the role of socioeconomic status in the relationship between depression and cancer survivorship status in a population-based sample of men from Atlantic Canada. Methods: A cross-sectional analysis was conducted on a subsample of 6,585 male participants aged 49–69 years from the 2009–2015 survey cycle of the Atlantic PATH study. The primary outcome was screening positive for mild, moderate or severe depression using the Patient Health Questionnaire (PHQ-9). The main predictor variable was cancer survivorship status (the presence of a lifetime history of prostate cancer, skin cancer, forms of cancer other than prostate or skin cancer, or absence of a lifetime cancer diagnosis). Covariates included age, education, marital status, household income, province, ethnicity, comorbidity, and survivorship time. Results: An estimated 14.7% of men in this sample screened positive for mild, moderate or severe depression. Men with a history of prostate cancer were 2.60 (95% CI: 1.02, 6.65) times more likely to screen positive for depression than men with a history of any other form of cancer. The odds ratios were 10.23 (95% CI: 2.82, 37.49) or 4.00 (95% CI: 1.20, 13.34) times higher for survivors of prostate or skin cancer who reported a low household income to screen positive for depression compared to men with a history of any other form of cancer and high household income. Conclusions: These results extend current evidence of the association between prostate cancer survivorship and depression compared with men who never had a history of cancer diagnosis by indicating that this association still stands when the survivors of prostate cancer are compared to survivors of any other form of cancer, and further indicates that this association is moderated by household income. The findings highlight the importance of delivering mental health screening and support to prostate cancer survivors during the cancer journey, especially those with low household incomes. DOI: https://doi.org/10.1159/000512444    

New Publication Alert

We’re excited to announce a new article in Oncology that examines the role of socioeconomic status in the relationship between depression and prostate cancer survivorship in the Atlantic PATH cohort. bit.ly/39dekQu This work builds on an article in Psycho-Oncology that analyzes anxiety and depression symptoms among adult males with and without a history of prostate cancer. bit.ly/36aWzPZ  

National COVID-19 Questionnaire Data Now Available

Over 101,500 CanPath participants from across Canada completed the CanPath COVID-19 Questionnaire in 2020. The first release of this data, including the over 93,000 responses collected by October 31st, 2020, is now available to researchers. These data were collected by the regional cohorts that make up CanPath: the BC Generations Project, Alberta’s Tomorrow Project, the Manitoba Tomorrow Project, Ontario Health Study, CARTaGENE (Quebec) and Atlantic PATH. Data collected through the survey include: Self-reported COVID-19 test results/suspected infection Symptoms experienced (if any) Current health status and risk factors Potential sources of exposure Lifestyle and behaviours (alcohol use, tobacco use etc.) Impact of the pandemic on job status Impact of the pandemic on mental, emotional, social and financial well-being Nationally harmonized data from the CanPath COVID-19 Questionnaire is now available to researchers. Given the immediate need for pandemic research, CanPath has revised its expedited review process to provide timely access to the data. Requests for access to the national COVID-19 Questionnaire dataset, as well as accompanying baseline and follow-up datasets, will be reviewed in as little as 9 business days. Please note that while ethnicity/race data was not collected through this questionnaire, self-reported ethnicity data was collected at baseline for all CanPath participants. This data is available for all participants who completed the COVID-19 questionnaire, with the exception of Manitoba Tomorrow Project participants as this cohort is still in recruitment. Of the over 93,000 participants to complete the CanPath COVID-19 Questionnaire by October 31st: 11.5% reported they were tested for COVID-19 0.21% reported they tested positive for COVID-19 0.02% were hospitalized because of COVID-19 2.66% suspected having an undiagnosed case of COVID-19 52.2% experienced mild or severe symptoms of COVID-19 25.4% reported a change in employment status since the pandemic Questions about the CanPath COVID-19 Questionnaire dataset? Email access@canpath.ca.

CanPath Webinar Announcement: Research Spotlight – How 3 Trainees are using CanPath Data and Biosamples

Join us on January 27th for a CanPath webinar to learn about three exciting research projects using data and biosamples from two of CanPath’s regional cohorts, Atlantic PATH and BC Generations. Jacob Nearing (PhD candidate, Department of Microbiology and Immunology, Dalhousie University) will be presenting his doctoral research which investigates the oral microbiome for biomarker discovery in cancer. Kalli Hood (MSc, Department of Community Health and Epidemiology, Dalhousie University) will be presenting her Master’s research which used toenail biomarkers to compare arsenic speciation and metallomic profiles in breast, cervical, prostate, and skin cancers. Molly Sweeney Magee (PhD candidate, School of Population and Public Health, University of British Columbia) will be presenting on her doctoral research focused on cancer diagnosis and health behaviour change.   Registration details: http://bit.ly/3b9ewBE

Associations between Neighborhood Walkability, Physical Activity, and Chronic Disease in Nova Scotian Adults: An Atlantic PATH Cohort Study

Authors: Keats, M., Cui, Y., DeClercq, V., Grandy, S., Sweeney, E., Dummer, TJB. (2020) Abstract: Background: While neighborhood walkability has been shown to positively influence health behaviors, less is known about its impact on chronic disease. Our aim was to examine the association between walkability and self-reported physical activity in relation to chronic health conditions in an Atlantic Canadian population. Methods: Using data from the Atlantic Partnership for Tomorrow’s Health, a prospective cohort study, we employed both a cross-sectional and a prospective analytical approach to investigate associations of walkability and physical activity with five prevalent chronic diseases and multimorbidity. Results: The cross-sectional data show that participants with the lowest neighborhood walkability were more likely to have reported a pre-existing history of cancer and depression and least likely to report chronic respiratory conditions. Participants with low physical activity were more likely to have a pre-existing history of diabetes, chronic respiratory disease, and multimorbidity. Follow-up analyses showed no significant associations between walkability and chronic disease incidence. Low levels of physical activity were significantly associated with diabetes, cancer and multimorbidity. Conclusions: Our data provides evidence for the health protective benefits of higher levels of physical activity, and a reduction in prevalence of some chronic diseases in more walkable communities. Doi : https://doi.org/10.3390/ijerph17228643 https://www.mdpi.com/1660-4601/17/22/8643

CanPath CITF Funding Announcement

We are thrilled to announce that CanPath has been awarded $1.9million in funding from the COVID-19 Immunity Task Force for a COVID-19 seroprevalence study!  This work will be implemented by all the regional CanPath cohorts, including Atlantic PATH.  

Assessing arsenic in human toenail clippings using portable X-ray fluorescence

Authors:  David Fleming, Samantha Crook, Colby Evans, Michael Nader, Manuel Atia, Jason Hicks, Ellen Sweeney, Christopher McFarlane, Jong Sung Kim, Erin Keltie, Anil Adisesh Journal: Applied Radiation and Isotopes Abstract: Arsenic is a toxic metalloid which has been associated with a wide range of health effects in humans including skin abnormalities and an elevated risk of skin, bladder, kidney, and lung cancer, diabetes, and cardiovascular disease. The measurement of arsenic concentration in nail clippings is often used in population studies as an indicator of arsenic exposure. Portable X-ray fluorescence (XRF) is an emerging technique for measuring arsenic in nail clippings. In the current study, single toenail clippings from 60 Atlantic Canadian participants were assessed for arsenic using a new portable XRF approach. A mono-energetic portable XRF system using doubly curved crystal optics was used to measure each clipping for a total of 900 s. Energy spectra from each clipping were analyzed for arsenic characteristic X-rays to provide a normalized arsenic signal. The same clippings were then analyzed for arsenic concentration using a “gold standard” method of inductively coupled plasma mass spectrometry (ICP-MS). Nail clipping arsenic concentrations measured by ICP-MS ranged from 0.030 μg/g to 2.57 μg/g, with a median result of 0.14 μg/g. Portable XRF results for arsenic were compared against ICP-MS arsenic concentrations, with a linear equation of best fit determined between the two variables. A correlation coefficient of r = 0.77 was found from the 59 nail clippings returning an ICP-MS arsenic concentration above the limit of quantitation. When the comparison was limited to the 20 clippings having an XRF normalized signal at least twice as large as the associated uncertainty of measurement, the correlation coefficient was r = 0.89. With the selection of an arsenic concentration of 0.1 μg/g as a cut-off value between “exposed” and “non-exposed” individuals, the XRF method provided a test sensitivity of 76% and a specificity of 81%. The corresponding positive predictive value was 88% and the negative predictive value was 65%. The portable XRF technique used in this study shows promise as a means of assessing arsenic concentration in toenail clippings.   Doi: https://doi.org/10.1016/j.apradiso.2020.109491

Portable X-ray fluorescence of zinc applied to human toenail clippings

We are pleased to announce a publication in Applied Radiation and Isotopes examining Portable X-Ray Fluorescence of Arsenic using Atlantic PATH’s toenail samples!! This work was led by Dr. David Fleming at Mount Allison University. The full text is available via open access: bit.ly/2G17SjM. This work builds on the first publication in the Journal of Trace Elements in Medicine and Biology which examines Portable X-Ray Fluorescence of Zinc. The full text is available via open access: https://bit.ly/35zlKdU