References
- Moher D, Hopewell S, Schulz KF. CONSORT 2010 Explanation and Elaboration: updated guidelines for reporting parallel group randomised trials. BMJ 2010; 340: c869.
- Pocock SJ. Clinical Trials: A Practical Approach. Chichester: Wiley, 1983, Chapter 5.
- Schulz KF. Subverting randomization in controlled trials. J Am Med Assoc 1995; 274: 1456–58.
- Pandis N, Polychronopoulou A, Eliades T. An assessment of quality characteristics of randomised control trials published in dental journals. J Dent 2010; 38: 713–21.
- Koletsi D, Pandis N, Polychronopoulou A, Eliades T. What’s in a title? An assessment of whether randomized controlled trial in a title means that it is one. Am J Orthod Dentofac Orthop 2012; 141: 679–85.
- Schulz KF, Chalmers I, Hayes RJ, Altman DG. Empirical evidence of bias. Dimensions of methodological quality associated with estimates of treatment effects in controlled trials. J Am Med Assoc 1995; 273: 408–12.
- Harrison JE. Clinical trials in orthodontics II: assessment of the quality of reporting of clinical trials published in three orthodontic journals between 1989 and 1998. J Orthod 2003; 30: 309–15; discussion 297–98.
- Flint HE, Harrison JE. How well do reports of clinical trials in the orthodontic literature comply with the CONSORT statement? J Orthod 2010; 37: 250–61.
- J P T Higgins, Altman D G, Sterne J A C, (eds.). Chapter 8: Assessing risk of bias in included studies. In: Higgins JPT, Green S (eds.). Cochrane Handbook for systematic reviews of interventions. Version 5.1.0 (updated March 2011). The Cochrane Collaboration, 2011. Available at: http://www.cochrane-handbook.org (accessed 20/10/2012).
- Boutron I, Moher D, Altman DG, Schulz KF, Ravaud P. Extending the 43 CONSORT statement to randomized trials of non-pharmacologic treatment: explanation and elaboration. Ann Intern Med 2008; 148: 295–309.
- Pocock SJ. Clinical Trials: A Practical Approach. Chichester: Wiley, 1983, Chapter 6.
- Macfarlane TV. Sample size determination for research projects. J Orthod 2003; 30: 99–100.
- Baccetti T, Franchi L, Giuntini V, Masucci C, Vangelisti A, Defraia E. Early versus late orthodontic treatment of deepbite: a prospective clinical trial in growing subjects. Am J Orthod Dentofac Orthop 2012; 142: 75–82.
- Pocock SJ. Clinical Trials: A Practical Approach. Chichester: Wiley, 1983. Chapter 9–10.
- Altman DG. Statistics and ethics in medical research: III. How large a sample? BMJ 1980; 281: 1336–38.
- Whitley E, Ball J. Statistics review 4: sample size calculations. Crit Care 2002, 6: 335–341.
- Brookes ST, Whitley E, Peters TJ, Mulheran PA, Egger M, Davey Smith G. Subgroup analyses in randomized controlled trials quantifying the risks of false-positives and false-negatives. Health Technol Assess 2001; 5: 33.
- Machin D, Fayers D. Randomized Clinical Trials: Design, Practice and Reporting. Chichester: Wiley-Blackwell, 2010, 259.
- Montgomery AA, Peters TJ, Little P. Design, analysis and presentation of factorial randomised controlled trials. BMC Med Res Methodol 2003; 3: 26.
- Killip S, Mahfoud Z, Pearce K. What is an intra-cluster correlation coefficient? Crucial concepts for primary care researchers. Ann Fam Med 2004; 2: 204–08.
- Hayes RJ, Bennett S. Simple sample size calculation for cluster-randomized trials. Int J Epidemiol 1999; 28: 319–26.
- Kolesti D, Pandis N, Polychronopoulou A, Eliades T. Does published orthodontic research account for clustering effects during statistical data analysis? Eur J Orthod 2012; 34: 287–92.