Skip to main content
×
Home
    • Aa
    • Aa
  • Get access
    Check if you have access via personal or institutional login
  • Cited by 73
  • Cited by
    This article has been cited by the following publications. This list is generated based on data provided by CrossRef.

    Bonaparte, James P. Ellis, David Quinn, Jason G. Rabski, Jessica and Hutton, Brian 2016. A Comparative Assessment of Three Formulations of Botulinum Toxin Type A for Facial Rhytides. Plastic and Reconstructive Surgery, Vol. 137, Issue. 4, p. 1125.


    Chrvala, Carole A. Sherr, Dawn and Lipman, Ruth D. 2016. Diabetes self-management education for adults with type 2 diabetes mellitus: A systematic review of the effect on glycemic control. Patient Education and Counseling, Vol. 99, Issue. 6, p. 926.


    Elbourn, E. Togher, L. Kenny, B. and Power, E 2016. Strengthening the quality of longitudinal research into cognitive-communication recovery after traumatic brain injury: A systematic review. International Journal of Speech-Language Pathology, p. 1.


    Fabricant, Peter D Lakomkin, Nikita Cruz, Aristides I Spitzer, Elad and Marx, Robert G 2016. ACL reconstruction in youth athletes results in an improved rate of return to athletic activity when compared with non-operative treatment: a systematic review of the literature. Journal of ISAKOS: Joint Disorders & Orthopaedic Sports Medicine, Vol. 1, Issue. 2, p. 62.


    Faggion, Clovis M Wu, Yun-Chun Tu, Yu-Kang and Wasiak, Jason 2016. Quality of search strategies reported in systematic reviews published in stereotactic radiosurgery. The British Journal of Radiology, Vol. 89, Issue. 1062, p. 20150878.


    Fantony, Joseph J. Gopalakrishna, Ajay Noord, Megan Van and Inman, Brant A. 2016. Reporting Bias Leading to Discordant Venous Thromboembolism Rates in the United States Versus Non-US Countries Following Radical Cystectomy: A Systematic Review and Meta-analysis. European Urology Focus, Vol. 2, Issue. 2, p. 189.


    Forte, Mary L. Andrade, Kate E. Lowry, Ann C. Butler, Mary Bliss, Donna Z. and Kane, Robert L. 2016. Systematic Review of Surgical Treatments for Fecal Incontinence. Diseases of the Colon & Rectum, Vol. 59, Issue. 5, p. 443.


    Goldgrub, Rachel Côté, Pierre Sutton, Deborah Wong, Jessica J. Yu, Hainan Randhawa, Kristi Varatharajan, Sharanya Southerst, Danielle Mior, Silvano Shearer, Heather M. Jacobs, Craig Stupar, Maja Chung, Chadwick L. Abdulla, Sean Balogh, Robert Dogra, Shilpa Nordin, Margareta and Taylor-Vaisey, Anne 2016. The Effectiveness of Multimodal Care for the Management of Soft Tissue Injuries of the Shoulder: A Systematic Review by the Ontario Protocol for Traffic Injury Management (OPTIMa) Collaboration. Journal of Manipulative and Physiological Therapeutics, Vol. 39, Issue. 2, p. 121.


    Gopalakrishna, Ajay Longo, Thomas A. Fantony, Joseph J. Doshi, Uma Harrison, Michael R. Van Noord, Megan and Inman, Brant A. 2016. High rates of venous thromboembolic events in patients undergoing systemic therapy for urothelial carcinoma: A systematic review and meta-analysis. Urologic Oncology: Seminars and Original Investigations,


    Gorrell, Lindsay M. Engel, Roger M. Brown, Benjamin and Lystad, Reidar P. 2016. The reporting of adverse events following spinal manipulation in randomized clinical trials—a systematic review. The Spine Journal,


    Hall, Deborah A. Haider, Haula Szczepek, Agnieszka J. Lau, Pia Rabau, Sarah Jones-Diette, Julie Londero, Alain Edvall, Niklas K. Cederroth, Christopher R. Mielczarek, Marzena Fuller, Thomas Batuecas-Caletrio, Angel Brueggemen, Petra Thompson, Dean M. Norena, Arnaud Cima, Rilana F. F. Mehta, Rajnikant L. and Mazurek, Birgit 2016. Systematic review of outcome domains and instruments used in clinical trials of tinnitus treatments in adults. Trials, Vol. 17, Issue. 1,


    Hamedi Sangsari, Adrien Sadr-Eshkevari, Pooyan Al-Dam, Ahmed Friedrich, Reinhard E. Freymiller, Earl and Rashad, Ashkan 2016. Surgically Assisted Rapid Palatomaxillary Expansion With or Without Pterygomaxillary Disjunction: A Systematic Review and Meta-Analysis. Journal of Oral and Maxillofacial Surgery, Vol. 74, Issue. 2, p. 338.


    Hind, Daniel Kaklamanou, Daphne Beever, Dan Webster, Rosie Lee, Ellen Barkham, Michael and Cooper, Cindy 2016. The assessment of depression in people with multiple sclerosis: a systematic review of psychometric validation studies. BMC Psychiatry, Vol. 16, Issue. 1,


    Hong, Sung-Bin Kusnoto, Budi Kim, Eun-Jeong BeGole, Ellen A Hwang, Hyeon-Shik and Lim, Hoi-Jeong 2016. Prognostic factors associated with the success rates of posterior orthodontic miniscrew implants: A subgroup meta-analysis. The Korean Journal of Orthodontics, Vol. 46, Issue. 2, p. 111.


    Hussain, Mohamad A. Bin-Ayeed, Saad A. Saeed, Omar Q. Verma, Subodh and Al-Omran, Mohammed 2016. Impact of diabetes on carotid artery revascularization. Journal of Vascular Surgery, Vol. 63, Issue. 4, p. 1099.


    Kennedy, O. J. Roderick, P. Buchanan, R. Fallowfield, J. A. Hayes, P. C. and Parkes, J. 2016. Systematic review with meta-analysis: coffee consumption and the risk of cirrhosis. Alimentary Pharmacology & Therapeutics, Vol. 43, Issue. 5, p. 562.


    Kumar, Santhosh Tadakamadla, Jyothi Kroon, Jeroen and Johnson, Newell W. 2016. Impact of parent-related factors on dental caries in the permanent dentition of 6–12-year-old children: A systematic review. Journal of Dentistry, Vol. 46, p. 1.


    Mercieca-Bebber, Rebecca L. Perreca, Alessandro King, Madeleine Macann, Andrew Whale, Katie Soldati, Salvatore Jacobs, Marc and Efficace, Fabio 2016. Patient-reported outcomes in head and neck and thyroid cancer randomised controlled trials: A systematic review of completeness of reporting and impact on interpretation. European Journal of Cancer, Vol. 56, p. 144.


    Nielsen, J Ø Shrestha, A D Neupane, D and Kallestrup, P 2016. Non-adherence to anti-hypertensive medication in low- and middle-income countries: a systematic review and meta-analysis of 92 443 subjects. Journal of Human Hypertension,


    Nunn, Aimie Bath, Philip M. and Gray, Laura J. 2016. Analysis of the Modified Rankin Scale in Randomised Controlled Trials of Acute Ischaemic Stroke: A Systematic Review. Stroke Research and Treatment, Vol. 2016, p. 1.


    ×
  • International Journal of Technology Assessment in Health Care, Volume 28, Issue 2
  • April 2012, pp. 138-144

THE EFFECT OF ENGLISH-LANGUAGE RESTRICTION ON SYSTEMATIC REVIEW-BASED META-ANALYSES: A SYSTEMATIC REVIEW OF EMPIRICAL STUDIES

  • Andra Morrison (a1), Julie Polisena (a2), Don Husereau (a3), Kristen Moulton (a1), Michelle Clark (a1), Michelle Fiander (a4), Monika Mierzwinski-Urban (a1), Tammy Clifford (a5), Brian Hutton (a6) and Danielle Rabb (a1)
  • DOI: http://dx.doi.org/10.1017/S0266462312000086
  • Published online: 26 April 2012
Abstract

Objectives: The English language is generally perceived to be the universal language of science. However, the exclusive reliance on English-language studies may not represent all of the evidence. Excluding languages other than English (LOE) may introduce a language bias and lead to erroneous conclusions.

Study Design and Setting: We conducted a comprehensive literature search using bibliographic databases and grey literature sources. Studies were eligible for inclusion if they measured the effect of excluding randomized controlled trials (RCTs) reported in LOE from systematic review-based meta-analyses (SR/MA) for one or more outcomes.

Results: None of the included studies found major differences between summary treatment effects in English-language restricted meta-analyses and LOE-inclusive meta-analyses. Findings differed about the methodological and reporting quality of trials reported in LOE. The precision of pooled estimates improved with the inclusion of LOE trials.

Conclusions: Overall, we found no evidence of a systematic bias from the use of language restrictions in systematic review-based meta-analyses in conventional medicine. Further research is needed to determine the impact of language restriction on systematic reviews in particular fields of medicine.

Copyright
Linked references
Hide All

This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

3.SH Downs , N Black . The feasibility of creating a checklist for the assessment of the methodological quality both of randomised and non-randomised studies of health care interventions. J Epidemiol Community Health. 1998;52:377384.

5.M Egger , T Zellweger-Zähner , M Schneider , Language bias in randomised controlled trials published in English and German. Lancet. 1997;350:326329.

6.Fung IC-H. Seek, and ye shall find: Accessing the global epidemiological literature in different languages. Emerg Themes Epidemiol. 2008;5:21.

7.G Grégorie , F Derderian , J Le Lorier . Selecting the language of the publications included in a meta-analysis: Is there a tower of Babel bias? J Clin Epidemiol. 1995;48:159163.

11.P Jüni , F Holenstein , J Sterne , C Bartlett , M Egger . Direction and impact of language bias in meta-analyses of controlled trials: Empirical study. Int J Epidemiol. 2002;31:115123.

12.D Moher , B Pham , ML Lawson , TP Klassen . The inclusion of reports of randomised trials published in languages other than English in systematic reviews. Health Technol Assess. 2003;7:iii-90.

14.D Moher , B Pham , A Jones , Does quality of reports of randomised trials affect estimates of intervention efficacy reported in meta-analyses? Lancet. 1998;352:609613.

15.D Moher , B Pham , TP Klassen , What contributions do languages other than English make on the results of meta-analyses? J Clin Epidemiol. 2000;53:964972.

18.Z Pan , TA Trikalinos , FK Kavvoura , J Lau , JPA Ioannidis . Local literature bias in genetic epidemiology: An empirical evaluation of the Chinese literature. Plos Med. 2005;2:13091317.

19.B Pham , TP Klassen , ML Lawson , D Moher . Language of publication restrictions in systematic reviews gave different results depending on whether the intervention was conventional or complementary. J Clin Epidemiol. 2005;58:769776.

Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

International Journal of Technology Assessment in Health Care
  • ISSN: 0266-4623
  • EISSN: 1471-6348
  • URL: /core/journals/international-journal-of-technology-assessment-in-health-care
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords: