Calculator for metanalysis of multiple compatable studies. Refer to the Cochrane Collaboration for details. This calculator works off-line. (IE4)

Programme written by DJR Hutchon. Enter the results from the Peto OR calculator

		Results from Peto OR calculator
		Observed - expected	Variance of observed - expected
Study names
	TOTALS

Metanalysis Odds ratio estimate (OR) =
95% confidence interval =
Example - populate with Cochrane Cortico steroid metanalysis for neonatal death
A permanent record of the analysis can be obtained by printing the page. If there are fewer than 14 studies, leave blank cells, it does not affect the calculation. If there are more than 14 studies, enter the first 14 and use the TOTALS to transfer to the first of the lines, and on the cleared table now enter the rest of the studies below

This calculator is for educational use. It is believed accurate but no responsibility for accuracy of the results is accepted by the author. David J R Hutchon BSc, MB, ChB, FRCOG Consultant Gynaecologist, Memorial Hospital, Darlington, England.
You are welcome to keep this page and use the calculator off-line. I would appreciate an E-mail if you find it useful enough to do so. E-mail to me at DJRHutchon@Postmaster.co.uk
24/3/2006
Reference Chalmers et al Effective Care in pregnancy and childbirth. p63