Research
Observer bias in randomized clinical trials with measurement scale outcomes: a systematic review of trials with both blinded and nonblinded assessors
Asbjørn Hróbjartsson, Ann Sofia Skou Thomsen, Frida Emanuelsson, Britta Tendal, Jørgen Hilden, Isabelle Boutron, Philippe Ravaud and Stig Brorson
CMAJ March 05, 2013 185 (4) E201-E211; DOI: https://doi.org/10.1503/cmaj.120744
Asbjørn Hróbjartsson
From the Nordic Cochrane Centre (Hróbjartsson, Thomsen, Emanuelsson, Tendal) Rigshospitalet Department 7811, Copenhagen, Denmark; the Department of Biostatistics (Hilden), University of Copenhagen, Denmark; the French Cochrane Centre (Boutron, Ravaud), Assistance Publique (Hotel Dieu), Paris, France; and the Department of Orthopaedic Surgery (Brorson), Herlev University Hospital, Denmark.
MD PhDAnn Sofia Skou Thomsen
From the Nordic Cochrane Centre (Hróbjartsson, Thomsen, Emanuelsson, Tendal) Rigshospitalet Department 7811, Copenhagen, Denmark; the Department of Biostatistics (Hilden), University of Copenhagen, Denmark; the French Cochrane Centre (Boutron, Ravaud), Assistance Publique (Hotel Dieu), Paris, France; and the Department of Orthopaedic Surgery (Brorson), Herlev University Hospital, Denmark.
MDFrida Emanuelsson
From the Nordic Cochrane Centre (Hróbjartsson, Thomsen, Emanuelsson, Tendal) Rigshospitalet Department 7811, Copenhagen, Denmark; the Department of Biostatistics (Hilden), University of Copenhagen, Denmark; the French Cochrane Centre (Boutron, Ravaud), Assistance Publique (Hotel Dieu), Paris, France; and the Department of Orthopaedic Surgery (Brorson), Herlev University Hospital, Denmark.
MDBritta Tendal
From the Nordic Cochrane Centre (Hróbjartsson, Thomsen, Emanuelsson, Tendal) Rigshospitalet Department 7811, Copenhagen, Denmark; the Department of Biostatistics (Hilden), University of Copenhagen, Denmark; the French Cochrane Centre (Boutron, Ravaud), Assistance Publique (Hotel Dieu), Paris, France; and the Department of Orthopaedic Surgery (Brorson), Herlev University Hospital, Denmark.
MD PhDJørgen Hilden
From the Nordic Cochrane Centre (Hróbjartsson, Thomsen, Emanuelsson, Tendal) Rigshospitalet Department 7811, Copenhagen, Denmark; the Department of Biostatistics (Hilden), University of Copenhagen, Denmark; the French Cochrane Centre (Boutron, Ravaud), Assistance Publique (Hotel Dieu), Paris, France; and the Department of Orthopaedic Surgery (Brorson), Herlev University Hospital, Denmark.
MDIsabelle Boutron
From the Nordic Cochrane Centre (Hróbjartsson, Thomsen, Emanuelsson, Tendal) Rigshospitalet Department 7811, Copenhagen, Denmark; the Department of Biostatistics (Hilden), University of Copenhagen, Denmark; the French Cochrane Centre (Boutron, Ravaud), Assistance Publique (Hotel Dieu), Paris, France; and the Department of Orthopaedic Surgery (Brorson), Herlev University Hospital, Denmark.
MD PhDPhilippe Ravaud
From the Nordic Cochrane Centre (Hróbjartsson, Thomsen, Emanuelsson, Tendal) Rigshospitalet Department 7811, Copenhagen, Denmark; the Department of Biostatistics (Hilden), University of Copenhagen, Denmark; the French Cochrane Centre (Boutron, Ravaud), Assistance Publique (Hotel Dieu), Paris, France; and the Department of Orthopaedic Surgery (Brorson), Herlev University Hospital, Denmark.
MD PhDStig Brorson
From the Nordic Cochrane Centre (Hróbjartsson, Thomsen, Emanuelsson, Tendal) Rigshospitalet Department 7811, Copenhagen, Denmark; the Department of Biostatistics (Hilden), University of Copenhagen, Denmark; the French Cochrane Centre (Boutron, Ravaud), Assistance Publique (Hotel Dieu), Paris, France; and the Department of Orthopaedic Surgery (Brorson), Herlev University Hospital, Denmark.
MD PhDData supplements
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- (2013). Highlights. CMAJ, 185(4), 279. Accessed March 28, 2024. Retrieved from http://www.cmaj.ca/content/185/4/279.
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Observer bias in randomized clinical trials with measurement scale outcomes: a systematic review of trials with both blinded and nonblinded assessors
Asbjørn Hróbjartsson, Ann Sofia Skou Thomsen, Frida Emanuelsson, Britta Tendal, Jørgen Hilden, Isabelle Boutron, Philippe Ravaud, Stig Brorson
CMAJ Mar 2013, 185 (4) E201-E211; DOI: 10.1503/cmaj.120744
Observer bias in randomized clinical trials with measurement scale outcomes: a systematic review of trials with both blinded and nonblinded assessors
Asbjørn Hróbjartsson, Ann Sofia Skou Thomsen, Frida Emanuelsson, Britta Tendal, Jørgen Hilden, Isabelle Boutron, Philippe Ravaud, Stig Brorson
CMAJ Mar 2013, 185 (4) E201-E211; DOI: 10.1503/cmaj.120744
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