Statistics

The whole of DAE is based on simple summary statistics. Throughout this section we will escalate from simple summary statistics through Correlation Coefficients up to Linear Regression, Multiple Regression, Logistic Regression and Bayesian Analysis.

It is our main thesis that simple statistics are the appropriate strategy for estimating age from development of the dentition.

The statistical texts that provide the theoretical basis for the following pages are:

Petrie A & Sabin C. Medical Statistics at a Glance. 2009. Wiley-Blackwell 3rd Edition. Oxford.  ISBN 978-1-4051-8051-1

Altman DG. Practical Statistics for Medical Research. 1991. Chapman & Hall. London ISBN 0-412-27630-5.

Bland JM, Altman DG. Statistical methods for assessing agreement between two methods of clinical measurement. The Lancet. 1986; February 8th: 307-310.

STATA 13. Stata Corp LP, Texas USA www.stata.com [ Note – any well established statistical software package can be used to derive most statistical procedures of relevance to DAE. the advantage of STATA is that it enables the use of Meta-Analysis Software as a User Defined Procedure. The ‘Help’ provides a fully detailed appraisal of the statistical test and also details of the command structure for all statistical procedures.

A large number of the statistical procedures can be carried out with Microsoft Excel.

The statistical procedures arise out of the rigorous data management that leads to a column of Age at Attainment (AaA) for specific Tooth Development Stages (TDS).  This stepwise process is described under the pages for D – Database Development and Data Processing.

[ Data Management ]

~~~~~~~~~~~~~~~~ Page written by Graham Roberts  19 May 2014 ~~~~~~~~~~~~~~~~~