T
Tim Ramsay
Researcher at Ottawa Hospital Research Institute
Publications - 270
Citations - 12012
Tim Ramsay is an academic researcher from Ottawa Hospital Research Institute. The author has contributed to research in topics: Randomized controlled trial & Medicine. The author has an hindex of 48, co-authored 237 publications receiving 10023 citations. Previous affiliations of Tim Ramsay include University of Ottawa & Brigham and Women's Hospital.
Papers
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Extended follow-up and spatial analysis of the American Cancer Society study linking particulate air pollution and mortality.
Daniel Krewski,Michael Jerrett,Rick Burnett,Renjun Ma,Edward Hughes,Yuanli Shi,Michelle C. Turner,Pope Ca rd,George D. Thurston,Eugenia E. Calle,Michael J. Thun,Bernardo Beckerman,Patrick F. DeLuca,Norm Finkelstein,K. Ito,D. K. Moore,K. B. Newbold,Tim Ramsay,Zev Ross,Shin H,Barbara Tempalski +20 more
TL;DR: An extended follow-up and spatial analysis of the American Cancer Society Cancer Prevention Study II (CPS-II) cohort was conducted in order to further examine associations between long-term exposure to particulate air pollution and mortality in large U.S. cities.
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Effectiveness of quality improvement strategies on the management of diabetes: a systematic review and meta-analysis.
Andrea C. Tricco,Noah Ivers,Jeremy M. Grimshaw,Jeremy M. Grimshaw,David Moher,David Moher,Lucy Turner,James Galipeau,Ilana Halperin,Brigitte Vachon,Brigitte Vachon,Tim Ramsay,Tim Ramsay,Braden J. Manns,Marcello Tonelli,Kaveh G. Shojania +15 more
TL;DR: The effectiveness of QI strategies varied depending on baseline HbA(1c) control, and interventions targeting the system of chronic disease management along with patient-mediatedQI strategies should be an important component of interventions aimed at improving diabetes management.
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Apixaban to Prevent Venous Thromboembolism in Patients with Cancer
Marc Carrier,Karim Abou-Nassar,Ranjeeta Mallick,Vicky Tagalakis,Sudeep Shivakumar,Ariah Schattner,Philip Kuruvilla,Danny Hill,Silvana Spadafora,Katerine Marquis,Mateya Trinkaus,Anna Tomiak,Agnes Y.Y. Lee,Peter L. Gross,Alejandro Lazo-Langner,Robert El-Maraghi,Glenwood D. Goss,Grégoire Le Gal,David J. Stewart,Tim Ramsay,Marc A. Rodger,Debra Witham,Philip S. Wells,Avert Investigators +23 more
TL;DR: Apixaban therapy resulted in a significantly lower rate of venous thromboembolism than did placebo among intermediate‐to‐high‐risk ambulatory patients with cancer who were starting chemotherapy.
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External Validation of a Measurement Tool to Assess Systematic Reviews (AMSTAR)
Beverley Shea,Lex M. Bouter,Joan Peterson,Maarten Boers,Neil Andersson,Zulma Ortiz,Tim Ramsay,Annie Bai,Vijay K Shukla,Jeremy M. Grimshaw +9 more
TL;DR: Further validation of AMSTAR is needed to assess its validity, reliability and perceived utility by appraisers and end users of reviews across a broader range of systematic reviews.
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Identifying unprovoked thromboembolism patients at low risk for recurrence who can discontinue anticoagulant therapy
Marc A. Rodger,Susan R. Kahn,Philip S. Wells,David A. Anderson,Isabelle Chagnon,Grégoire Le Gal,Susan Solymoss,Mark Crowther,Arnaud Perrier,Richard H. White,Linda M. Vickars,Tim Ramsay,M. T. Betancourt,Michael J. Kovacs +13 more
TL;DR: Women with 0 or 1 risk factor may safely discontinue oral anticoagulant therapy after 6 months of therapy following a first unprovoked venous thromboembolism, and this criterion does not apply to men.