Now showing items 1-12 of 12

    • Agreements between Industry and Academia on Publication Rights: A Retrospective Study of Protocols and Publications of Randomized Clinical Trials 

      Kasenda, Benjamín; von Elm, Erik; You, John J.; Bluemle, Anette; Tomonaga, Yuki; Saccilotto, Ramón; Amstutz, Alain; Bengough, Theresa; Meerpohl, Joerg J.; Stegert, Mihaela; Olu, Kelechi K.; Tikkinen, Kari; Neumann, Ignacio; Carrasco Labra, Raúl; Faulhaber, Markus; Mulla, Sohail M.; Mertz, Dominik; Akl, Elie A.; Bassler, Dirk; Busse, Jason W.; Ferreira González, Ignacio; Lamontagne, Francois; Nordmann, Alain; Gloy, Viktoria; Raatz, Heike; Moja, Lorenzo; Ebrahim, Shanil; Schandelmaier, Stefan; Sun, Xin; Vandvik, Per O.; Johnston, Bradley C.; Walter, Martín A.; Burnand, Bernard; Schwenkglenks, Matthias; Hemkens, Lars G.; Bucher, Heiner C.; Guyatt, Gordon H.; Briel, Matthias (Public Library Science, 2016)
      Background Little is known about publication agreements between industry and academic investigators in trial protocols and the consistency of these agreements with corresponding statements in publications. We aimed to ...
    • Authors seldom report the most patient-important outcomes and absolute effect measures in systematic review abstracts 

      Agarwal, Arnav; Johnston, Bradley C.; Vernooij, Robin W.M.; Carrasco Labra, Alonso; Brignardello Petersen, Romina; Neumann, Ignacio; Akl, Elie A; Sun, Xin; Briel, Matthias; Busse, Jason W.; Ebrahim, Shanil; Granados, Carlos E.; Iorio, Alfonso; Irfan, Affan; Martínez G (Elsevier USA, 2017)
      © 2016 Elsevier Inc. Objectives Explicit reporting of absolute measures is important to ensure treatment effects are correctly interpreted. We examined the extent to which authors report absolute effects for patient-important ...
    • Completion and Publication Rates of Randomized Controlled Trials in Surgery An Empirical Study 

      Rosenthal, Rachel; Kasenda, Benjamin; Dell-Kuster, Salome; Elm, Erik von; You, John; Bluemle, Anette; Tomonaga, Yuki; Saccilotto, Ramón; Amstutz, Alain; Bengough, Theresa; Meerpohl, Joerg J.; Stegert, Mihaela; Tikkinen, Kari A. O.; Neumann, Ignacio; Carrasco Labra, Alonso; Faulhaber, Markus; Sohail, Mulla; Mertz, Dominik; Akl, Elie A.; Bassler, Dirk; Busse, Jason W.; Ferreira González, Ignacio; Lamontagne, Francois; Nordmann, Alain; Gloy, Viktoria; Olu, Kelechi K.; Raatz, Heike; Moja, Lorenzo; Ebrahim, Shanil; Schandelmaier, Stefan; Sun, Xin; Vandvik, Per O.; Bradley C., Johnston; Walter, Martin A.; Burnand, Bernard; Schwenkglenks, Matthias; Hemkens, Lars G.; Bucher, Heiner C.; Guyatt, Gordon H.; Briel, Matthias (Lippicott Williams & Wilkins, 2015)
      Objective: To investigate the prevalence of discontinuation and nonpublication of surgical versus medical randomized controlled trials (RCTs) and to explore risk factors for discontinuation and nonpublication of surgical ...
    • Effectiveness of Cognitive Behavioral Therapy for Depression in Patients Receiving Disability Benefits: A Systematic Review and Individual Patient Data Meta-Analysis 

      Ebrahim, Shanil; Montoya, Luis; Truong, Wanda; Hsu, Sandy; Kamal el Din, Mostafa; Carrasco Labra, Alonso; Busse, Jason W.; Walter, Stephen D.; Heels-Ansdell, Diane; Couban, Rachel; Patelis-Siotis, Irene; Bellman, Marg; de Graaf, L. Esther; Dozois, David J.A.; Bieling, (2012)
      Objectives: To systematically summarize the randomized trial evidence regarding the relative effectiveness of cognitive behavioural therapy (CBT) in patients with depression in receipt of disability benefits in comparison ...
    • Hypnosis/Relaxation Therapy for Temporomandibular Disorders: A Systematic Review and Meta-Analysis of Randomized Controlled Trials 

      Zhang, Yuqing; Montoya, Luis; Ebrahim, Shanil; Busse, Jason W.; Couban, Rachel; McCabe, Randi E.; Bieling, Peter; Carrasco Labra, Alonso; Guyatt, Gordon H. (QUINTESSENCE PUBLISHING, 2015)
      Aims: To conduct a systematic review and meta-analysis to evaluate the effectiveness of hypnosis/relaxation therapy compared to no/minimal treatment in patients with temporomandibular disorders (TMD). Methods: Studies ...
    • Premature Discontinuation of Randomized Trials in Critical and Emergency Care: A Retrospective Cohort Study 

      Schandelmaier, Stefan; Elm, Erik von; You, John J.; Bluemle, Anette; Tomonaga, Yuki; Lamontagne, Francois; Saccilotto, Ramón; Amstutz, Alain; Bengough, Theresa; Meerpohl, Joerg J.; Stegert, Mihaela; Olu, Kelechi K.; Tikkinen, Kari A. O.; Neumann, Ignacio; Carrasco Labra, Alonso; Faulhaber, Markus; Mulla, Sohail M.; Mertz, Dominik; Akl, Elie A.; Sun, Xin; Bassler, Dirk; Busse, Jason W.; Ferreira González, Ignacio; Nordmann, Alain; Gloy, Viktoria; Raatz, Heike; Moja, Lorenzo; Rosenthal, Rachel; Ebrahim, Shanil; Vandvik, Per O.; Johnston, Bradley C.; Walter, Martin A.; Burnand, Bernard; Schwenkglenks, Matthias; Hemkens, Lars G.; Cook, Deborah J.; Meade, Maureen O.; Bucher, Heiner C.; Kasenda, Benjamin; Briel, Matthias (Lippicott Williams & Wilkins, 2016)
      Objectives: Randomized clinical trials that enroll patients in critical or emergency care (acute care) setting are challenging because of narrow time windows for recruitment and the inability of many patients to provide ...
    • Prevalence, Characteristics, and Publication of Discontinued Randomized Trials 

      Kasenda, Benjamin; Von Elm, Erik; You, John; Blümle, Anette; Tomonaga, Yuki; Saccilotto, Ramón; Amstutz, Alain; Bengough, Theresa; Meerpohl, Joerg J.; Stegert, Mihaela; Tikkinen, Kari A. O.; Neumann, Ignacio; Carrasco Labra, Alonso; Faulhaber, Markus; Mulla, Sohail M.; Mertz, Dominik; Akl, Elie A.; Bassler, Dirk; Busse, Jason W.; Ferreira González, Ignacio; Lamontagne, Francois; Nordmann, Alain; Gloy, Viktoria; Raatz, Heike; Moja, Lorenzo; Rosenthal, Rachel; Ebrahim, Shanil; Schandelmaier, Stefan; Xin, Sun; Vandvik, Per O.; Johnston, Bradley C.; Walter, Martin A.; Burnand, Bernard; Schwenkglenks, Matthias; Hemkens, Lars G.; Bucher, Heiner C.; Guyatt, Gordon H.; Briel, Matthias (American Medical Association., 2014)
      IMPORTANCE The discontinuation of randomized clinical trials (RCTs) raises ethical concerns and often wastes scarce research resources. The epidemiology of discontinued RCTs, however, remains unclear. OBJECTIVES To ...
    • Reporting missing participant data in randomised trials: systematic survey of the methodological literature and a proposed guide 

      Akl, Elie A; Shawwa, Khaled; Kahale, Lara A.; Agoritsas, Thomas; Brignardello Petersen, Romina; Busse, Jason W.; Carrasco Labra, Alonso; Ebrahim, Shanil; Johnston, Bradley C.; Neumann, Ignacio; Solà, Iván; Sun, Xin; Vandvik, Per; Zhang, Yuqing; Alonso Coello, Pablo; Guyatt, Gordon H. (BMJ Publishing Group, 2015)
      Objectives We conducted a systematic survey of the methodological literature to identify recommended approaches for how and what randomised clinical trial (RCT) authors should report on missing participant data and, on the ...
    • Reporting, handling and assessing the risk of bias associated with missing participant data in systematic reviews: a methodological survey 

      Akl, Elie A.; Carrasco Labra, Alonso; Brignardello Petersen, Romina; Neumann, Ignacio; Johnston, Bradley C.; Sun, Xin; Briel, Matthias; Busse, Jason W.; Ebrahim, Shanil; Granados, Carlos E.; Iorio, Alfonso; Irfan, Affan; Martínez García, Laura; Mustafa, Reem A.; Ramírez Morera, Anggie; Selva, Anna; Solà, Iván; Sanabria, Andrea Juliana; Tikkinen, Kari A. O.; Vandvik, Per O.; Vernooij, Robin W. M.; Zazueta, Oscar E.; Zhou, Qi; Guyatt, Gordon H.; Alonso Coello, Pablo (BMJ, 2015)
      Objectives: To describe how systematic reviewers are reporting missing data for dichotomous outcomes, handling them in the analysis and assessing the risk of associated bias. Methods: We searched MEDLINE and the Cochrane ...
    • Systematic reviews do not adequately report or address missing outcome data in their analyses: a methodological survey 

      Kahale, Lara; Diab, Batoul; Brignardello Petersen, Romina; Agarwal, Arnav; Mustafa, Reem; Kwong, Joey; Neumann, Ignacio; Li, Ling; Cruz Lopes, Luciane; Briel, Matthias; Busse, Jason; Lorio, Alfonso; Vandvik, Per Olav; Alexander, Paul; Guyatt, Gordon H.; Akl, Elie (Elsevier, 2018-03-02)
      Objectives: To describe how systematic review authors report and address categories of participants with potential missing outcome data of trial participants. Study Design and Setting: Methodological survey of systematic ...
    • Systematic reviews experience major limitations in reporting absolute effects 

      Alonso Coello, Pablo; Carrasco Labra, Alonso; Brignardello Petersen, Romina; Neumann, Ignacio; Akl, Elie; Vernooij, Robin; Johnston, Brad; Sun, Xin; Briel, Matthias; Busse, Jason; Ebrahim, Shanil; Granados, Carlos; Iorio, Alfonso; Irfan, Affan; Martínez García, Laura; Mustafa, Reem; Ramírez Morers, Anggie; Selva, Anna; Solà, Iván; Sanabria, Andrea; Tikkinen, Kari; Vandvik, Per; Zazueta, Oscar; Zhang, Yuqing; Zhou, Qi; Schünemann, Holger; Guyatt, Gordon H. (Elsevier, 2016)
      Objectives: Expressing treatment effects in relative terms yields larger numbers than expressions in absolute terms, affecting the judgment of the clinicians and patients regarding the treatment options. It is uncertain ...
    • The effectiveness of splint therapy in patients with temporomandibular disorders: A systematic review and meta-analysis 

      Ebrahim, Shanil; Montoya, Luis; Busse, Jason; Carrasco Labra, Alonso; Guyatt, Gordon (American Dental Association, 2012)
      Purpose The authors conducted a systematic review of all published randomized controlled trials in which investigators compared the effectiveness of splint therapy with that of minimal or no treatment in patients with ...