A practical introduction to medical statistics
Article first published online: 4 FEB 2014
© 2014 Royal College of Obstetricians and Gynaecologists
The Obstetrician & Gynaecologist
Volume 16, Issue 2, pages 121–128, April 2014
How to Cite
A practical introduction to medical statistics. The Obstetrician & Gynaecologist 2014;16:121–8..
- Issue published online: 23 APR 2014
- Article first published online: 4 FEB 2014
- Manuscript Accepted: 16 OCT 2013
- Manuscript Revised: 12 SEP 2013
- Manuscript Received: 12 FEB 2013
- confidence intervals;
- data types;
- effect size;
- odds ratio;
- risk ratio;
- A few key principles are introduced that need to be understood before inferential statistical procedures can be applied or interpreted.
- The ‘inputs’ and ‘outputs’ of a generalised univariate statistical analysis are outlined.
- The greater value of interval estimation, over significance testing, is emphasised.
- Distinction is made between statistical significance and clinical importance.
- Examples of commonly used two-group analyses for independent samples are explained and discussed.
- To understand the principles underpinning the application of inferential statistical methods.
- To be able to interpret and apply a few commonly used statistical procedures.
- To identify when parametric and non-parametric tests are suitable to apply to data.
- To distinguish between an odds ratio and a risk ratio.
- A study that is statistically flawed is ethically flawed.