The Use of Prospective Meta-Analysis

Yıl 2018, Cilt: 4 Sayı: 3, 47 - 52, 27.12.2018

Tarık Yarılgaç

https://doi.org/10.19127/mbsjohs.497064

Öz

Meta-analysis is a powerful statistical instrument to
summarize the knowledge in a research field, and to estimate overall measures
of effects based on reported or unreported results. In performing meta-analysis
is generally used the results of the reported trials. Knowing the results
before the meta-analysis may affect the description of the review query, the
entry and exclusion specifications because the researchers may also be
prejudiced in selecting favor of reports supportive for their own thoughts.
With these problems the retrospective meta-analysis is becoming a controversial
tool in terms of “bias”. The prospective meta-analysis can cope with these
problems of the retrospective meta-analysis. A prospective meta-analysis is a
type of next-generation systematic reviews where studies are investigated to be
eligible before reporting their original studies. Prospective Meta-Analysis is
unaware of the results of all studies because of the prospective identification
and application of selection criteria for trials. In this paper, it is aimed to
give information about Prospective Meta-Analysis, and to promote the use.

Anahtar Kelimeler

Meta-Analysis, Prospective Meta-Analysis, Randomized controlled trial, Publication bias, Researcher bias

Kaynakça

• Alderson P, Green S, Higgins JPT, Eds. The Cochrane Library, Issue 1. Chichester, UK: John Wiley & Sons, Ltd; 2004. Cochrane Reviewers' Handbook 4.2.2 [Updated March 2004].
• Anonymous 1. Clinical Trials website. Surfactant Positive Airway Pressure and Pulse Oximetry Trial (SUPPORT). Available from: https://clinicaltrials.gov/ct2/show/NCT00233324. Accessed 15.09.2018.
• Anonymous 2. Cochrane Methods. 2018. Assessing risk of bias in included studies. Available from: http://methodscochraneorg/bias/assessing-risk-bias-included-studies. Accessed 27.05.2018).
• Anonymous 3. Current Controlled Trials website. Efficacy and safety of targeting lower arterial oxygen saturations to reduce oxygen toxicity and oxidative stress in very preterm infants: The Canadian Oxygen Trial. Available from:http://www.isrctn.com/ISRCTN62491227. Accessed 15.09.2018.
• Anonymous 4. Current Controlled Trials website. Which oxygen saturation level should we use for very premature infants? a randomised controlled trial. Available from: http://www.isrctn.com/ISRCTN00842661. Accessed 15.09.2018.
• Anonymous 5. Australian New Zealand Clinical Trials Registry website. A randomised phase III study to evaluate whether a lower versus a higher oxygen saturation target in infants of <28 weeks gestation is associated with a reduction in death or disability at 2 years of age. Available from:http://www.anzctr.org.au/ACTRN12605000253606.aspx. Accessed 15.09.2018.
• Anonymous 6. Australian New Zealand Clinical Trials Registry website. Which oxygen saturation level should we use for very premature infants? a randomized controlled trial to investigate the effect of two slightly different oxygen levels on the health of very premature infants. Available from:http://www.anzctr.org.au/ACTRN12605000055606.aspx. Accessed 15.09.2018.
• Anonymous 7. Prospective meta analysis. Nottingham Clinical Trials Unit. Available from: https://www.nottingham.ac.uk/nctu/other-research/pretermbirth/projects/prospective-meta-analysis.aspx. (Accessed 19.08.2018).
• Anonymous 8. How to plan and execute a PMA. Available from: https://methods.cochrane.org/pma/how-plan-and-execute-pma. (Accessed 10.12.2018).
• Askie LM, Brocklehurst P, Darlow BA, Finer N, Schmidt B, Tarnow-Mordi W, NeOProM Collaborative Group. NeOProM: neonatal oxygenation prospective meta-analysis collaboration study protocol. BMC Pediatr. 2011; 11:6. Askie, L.M., Darlow, B.A., Finer, N., Schmidt, B., Stenson, B., Tarnow-Mordi, W. et al. Association between oxygen saturation targeting and death or disability in extremely preterm infants in the Neonatal Oxygenation Prospective Meta-Analysis Collaboration. (for the; Neonatal Oxygenation Prospective Meta-analysis (NeOProM) Collaboration) JAMA. 2018; 319:2190–2201.
• Berlin JA, Colditz GA. The role of meta analysis in the regulatory process for foods, drugs and devices. Journal of the American Medical Association 1999;281(9):830-834.
• Berlin JA, Ghersi D. Prospective meta-analysis in dentistry. J. Evid. Base Dent. Pract. 2004; 4:59-64.
• Dickersin K. Publication bias: Recognizing the problem, understandings its origins and scope, and preventing harm. In H.R. Rothstein, A. J. Sutton, & M. Borenstein (Eds.), Publication bias in meta-analysis: Prevention, assessment, and adjustments, West Sussex: Wiley 2005;11–34.
• Egger M, Davey-Smith G. Bias in location and selection of studies. BMJ 1998; 316:61-6
• Eysenck HJ. Meta-analysis and its problems. BMJ 1994; 309:789-92.
• Ferrer RL. Graphical methods for detecting bias in meta-analysis. Family Med 1998; 30:579–83.
• Ghersi D, Berlin J and Askie L. “Chapter 19: Prospective meta-analysis,” In Cochrane Handbook for Systematic Reviews of Interventions Version 5.1.0 2011; Available from: https://handbook-5-1.cochrane.org (Accessed: 10.08.2018)
• Glass G. Primary, secondary, and meta-analysis of research. EducRes l976; 5:3-9.
• Hartung J, Knapp G and Sinha BK. Statistical meta-analysis with applications. John Wiley & Sons, Inc. 2008, Hoboken, New Jersey.
• Herson J. Data and safety monitoring committees in clinical trials. Boca Raton, FL: Chapman & Hall/CRC; 2009.
• Mak A, Cheung MWL, Fu EHY, Ho RCM. Meta-analysis in medicine: an introduction. International Journal of Rheumatic Diseases 2010; 13:101-104.
• Pogue J, Yusuf S. Overcoming the limitations of current meta-analysis of randomized controlled trials. Lancet. 1998;3(351):47-52.
• Reade MC, Delaney A, Bailey MJ, et al. Prospective meta-analysis using individual patient data in intensive care medicine. Intensive Care Med. 2010; 36:11–21.
• Rothstein HR, Sutton AJ, Borenstein M. Publication bias in meta-analysis: prevention, assessment and adjustments. John Wiley & Sons Ltd. 2005 research. ISRN Dent. 2012; 2012:10.
• Simes RJ. Prospective meta-analysis of cholesterol-lowering studies: The Prospective Pravastatin Pooling (PPP) Project and the Cholesterol Treatment Trialists (CTT) Collaboration. American Journal of Cardiology 1995;76(9):122-126.
• Tu Y-K, Faggion CM. A primer on network meta-analysis for dental. ISRN Dentistry, 2012:1-10. doi:10.5402/2012/276520
• Turok DK, Espey E, Edelman AB, Lotke PS, Lathrop EH, Teal SB, Jacobson JC, Simonsen SE, Schulz KF. The methodology for developing a prospective meta-analysis in the family planning community. Trials 2011; 12:104.
• Watt CA, Kennedy JE. Options for prospective meta-analysis and introduction of registration-based prospective meta-analysis. Frontiers in Psychology 2017;7(2030).
• Weiss B, Wagner M. The Identification and Prevention of Publication Bias in the Social Sciences and Economics. Journal of Economics and Statistics (Jahrbuecher fuer Nationaloekonomie und Statistik), De Gruyter. 2011;231(5-6):661-684.