Invalid methods

Comment

M Campbell. Br Dent J. 2007.

. 2007 May 26;202(10):579-80; author reply 580.

doi: 10.1038/bdj.2007.429.

No abstract available

Comment on

Does completing a dental anxiety questionnaire increase anxiety? A randomised controlled trial with adults in general dental practice.
Humphris GM, Clarke HM, Freeman R. Humphris GM, et al. Br Dent J. 2006 Jul 8;201(1):33-5. doi: 10.1038/sj.bdj.4813772. Br Dent J. 2006. PMID: 16829885 Clinical Trial.

Appropriate analysis and reporting of cluster randomised trials.
Goodacre S. Goodacre S. Emerg Med J. 2005 Feb;22(2):156; author reply 156. Emerg Med J. 2005. PMID: 15662078 Free PMC article. No abstract available.
Meta-analysis of community-based cluster randomization trials with binary outcomes.
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Cluster randomized trials produced similar results to individually randomized trials in a meta-analysis of enhanced care for depression.
Gilbody S, Bower P, Torgerson D, Richards D. Gilbody S, et al. J Clin Epidemiol. 2008 Feb;61(2):160-168. doi: 10.1016/j.jclinepi.2007.04.015. Epub 2007 Oct 22. J Clin Epidemiol. 2008. PMID: 18177789 Review.
[Statistical notes. Statistical significance and clinical relevance: are they the two sides of the same medal?].
Marubini E, Cesana BM. Marubini E, et al. G Ital Cardiol (Rome). 2007 Jun;8(6):349-52. G Ital Cardiol (Rome). 2007. PMID: 17633907 Italian.
Imputation strategies for missing continuous outcomes in cluster randomized trials.
Taljaard M, Donner A, Klar N. Taljaard M, et al. Biom J. 2008 Jun;50(3):329-45. doi: 10.1002/bimj.200710423. Biom J. 2008. PMID: 18537126 Review.