Cluster randomized clinical trials in orthodontics: Design, analysis and reporting issues

European Journal of Orthodontics

Volumn 35, Issue 5, 2013, Pages 669-675

  Pandis, Nikolaos ^a,b   Walsh, Tanya ^c   Polychronopoulou, Argy ^d   Eliades, Theodore ^e  

^a University of Bern ^*  (Greece)

^b UNIVERSITY OF BERN   (Switzerland)

^c UNIVERSITY OF MANCHESTER   (United Kingdom)

^d UNIVERSITY OF ATHENS   (Greece)

^e UNIVERSITY OF ZURICH   (Switzerland)

Author keywords

[No Author keywords available]

Indexed keywords

ARTICLE; CLUSTER ANALYSIS; DENTAL RESEARCH; HUMAN; METHODOLOGY; ORTHODONTICS; RANDOMIZATION; RANDOMIZED CONTROLLED TRIAL (TOPIC); RESEARCH; SAMPLE SIZE; STATISTICS;

CLUSTER ANALYSIS; DENTAL RESEARCH; HUMANS; ORTHODONTICS; RANDOM ALLOCATION; RANDOMIZED CONTROLLED TRIALS AS TOPIC; RESEARCH DESIGN; RESEARCH REPORT; SAMPLE SIZE;

EID: 84885064748     PISSN: 01415387     EISSN: 14602210     Source Type: Journal    
DOI: 10.1093/ejo/cjs072     Document Type: Article

References (34)

1. Altman DG, Bland JM 1997 Statistics notes. Units of analysis. British Medical Journal 314: 1874
2. Blinkhorn A 2010 Influencing patients' oral hygiene behaviour. Evidence-Based Dentistry 11: 41
3. Campbell MK, Elbourne DR, Altman D G; CONSORT group 2004 CONSORT statement: extension to cluster randomised trials. British Medical Journal 328: 702-708
4. Campbell MK, Grimshaw JM 1998 Cluster randomised trials: time for improvement. The implications of adopting a cluster design are still largely being ignored. British Medical Journal 317: 1171-1172
5. Chia KS 1997 "Significant-itis"-an obsession with the P-value. Scandinavian Journal of Work, Environment & Health 23: 152-154
6. Donner A 1982 An empirical study of cluster randomization. International Journal of Epidemiology 11: 283-286
7. Donner A, Klar N 2000 Design and analysis of cluster randomization trials in health research. Arnold, London Eldridge SM, Ashby D, Kerry S 2006 Sample size for cluster randomized trials: effect of coefficient of variation of cluster size and analysis method. International Journal of Epidemiology 35: 1292-1300
8. Ganss C, Neutard L, von Hinckeldey J, Klimek J, Schlueter N 2010 Efficacy of a tin/fluoride rinse: a randomized in situ trial on erosion. Journal of Dental Research 89: 1214-1218
9. Harrison R, Veronneau J, Leroux B 2010 Design and implementation of a dental caries prevention trial in remote Canadian Aboriginal communities. Trials 11: 54
10. Hayes RJ, Moulton LH 2009a Cluster randomized trials. Interdisciplinary Statistic Series. Chapman & Hall/CRC, Florida, pp.15-23
11. Hayes RJ, Moulton LH 2009b Cluster randomized trials. Interdisciplinary Statistic Series. Chapman & Hall/CRC, Florida, Chapter 5
12. Hayes RJ, Moulton LH 2009c Cluster randomized trials. Interdisciplinary Statistic Series. Chapman & Hall/CRC, Florida, Chapter 7
13. Florida, Chapter 2 Hayes RJ, Moulton LH 2009d Cluster randomized trials. Interdisciplinary Statistic Series. Chapman & Hall/CRC, Florida, Chapter 7
14. Hayes RJ, Moulton LH 2009e Cluster randomized trials. Interdisciplinary Statistic Series. Chapman & Hall/CRC, Florida, Chapter 9-11
15. Hayes RJ, Bennett S 1999 Simple sample size calculation for clusterrandomized trials. International Journal of Epidemiology 28: 319-326
16. Kerry SM, Bland JM 1998a Analysis of a trial randomised in clusters. British Medical Journal 316: 54
17. Kerry SM, Bland JM 1998b Analysis of a trial randomised in clusters. British Medical Journal 316: 54
18. Kerry SM, Bland JM 1998c Sample size in cluster randomisation. British Medical Journal 316: 549
19. Killip S, Mahfoud Z, Pearce K 2004 What is an intracluster correlation coefficient? Crucial concepts for primary care researchers. Annals of Family Medicine 2: 204-208
20. Koletsi D, Pandis N, Polychronopoulou A, Eliades T 2012 Does published orthodontic research account for clustering effects during statistical data analysis? European Journal of Orthodontics 34: 287-292
21. Lesaffre E, Philstrom B, Needleman I, Worthington H 2009 The design and analysis of split-mouth studies: what statisticians and clinicians should know. Statistics in Medicine 28: 3470-3482
22. Lawrence HP-. 2008 A 2-year community-randomized controlled trial of fluoride varnish to prevent early childhood caries in Aboriginal children. Community Dentistry and Oral Epidemiology 36: 503-516
23. Moher D-. 2010 CONSORT 2010 explanation and elaboration: updated guidelines for reporting parallel group randomised trials. British Medical Journal 340: c869
24. Mollison J, Simpson JA, Campbell MK, Grimshaw JM 2000 Comparison of analytical methods for cluster randomised trials: an example from a primary care setting. Journal of Epidemiology and Biostatistics 5: 339-348
25. Murray DM, Varnell SP, Blitstein JL 2004 Design and analysis of group-randomized trials: a review of recent methodological developments. American Journal of Public Health 94: 423-432
26. Needleman IG E-. 2006 Guided tissue regeneration for periodontal infra-bony defects. Cochrane Database Systematic Reviews 19: CD001724
27. Pandis N, Polychronopoulou A, Eliades T 2006 Failure rate of self-ligating and edgewise brackets bonded with conventional acid etching and a self-etching primer: a prospective in vivo study. The Angle Orthodontist 76: 119-122
28. Petracci E, Farella M, Galeone C, Albano A, Ferraroni M, Decarli A 2009 Survival analysis with clustered observations of orthodontic brackets. Statistics in Medicine 28: 3483-3491
29. Puffer S, Torgerson D, Watson J 2003 Evidence for risk of bias in cluster randomised trials: review of recent trials published in three general medical journals. British Medical Journal 327: 785-789
30. Rothman KJ, Greenland S, Lash TL 2008 Modern epidemiology. Lippincot Williams and Wilkins, Philadelphia, pp. 156-162
31. Savitz DA 1993 Is statistical significance testing useful in interpreting data? Reproductive Toxicology (Elmsford, N.Y.) 7: 95-100
32. Telleman G, Raghoebar GM, Vissink A, den Hartog L, Huddleston Slater JJ, Meijer HJ 2011 A systematic review of the prognosis of short (
33. Varnell SP, Murray DM, Janega JB, Blitstein JL 2004 Design and analysis of group-randomized trials: a review of recent practices. American Journal of Public Health 94: 393-399
34. Wang D, Bakhai A 2006 Clinical trials: a practical guide to design, analysis, and reporting. Remedica, London, Chapter 15