Does physical activity attenuate, or even eliminate, the detrimental association

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Does physical activity attenuate, or even eliminate, the detrimental association of sitting time with mortality? A harmonised meta-analysis of data from more than 1 million men and women
(Links to an external site.)
(2016) by ULF Ekelund, et al.
This study uses Cox regression, which is a regression technique used to investigate the relationship between predictor variables and survival time. You do not need to worry about the details of this method. Just know that a hazard ratio greater than one indicates an increased risk.
Write a critique of the article, addressing the following:
What question or questions were the authors trying to answer? What implications do these questions have in the real world?
What data did the authors use? What were the strengths and limitations of the dataset? What assumptions did the authors make about the data? Were they appropriate?
At a high level, briefly explain the methodology the authors used. What questions do you have about these techniques?
What conclusions did the authors draw from their analysis? Do you agree?
Do the authors claim or imply causation between the predictor variables and outcome variables? If so, what evidence do they cite?
This essay should be 1—2 pages in length, double-spaced, and should be grammatically correct, but it does not have to be formally/academically written. Write it in “business-casual.” Once you are satisfied with your work, click Start Assignment at the top-right of this page, upload your document as a PDF, and click the Submit button.

 

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