Calculator to provide R, S, and D values for metanalysis of relative risk This calculator works off-line. (IE4)

Programme written by DJR Hutchon. Enter data into the boxes "A+B","A","C+D",and "C" only Using MH method for zero entry in box "A" or "C" add 0.5 to "A" and "C" and add one to total "A+B" and "C+D"

		Event	No event
		(A+C)	(B+D)	Relative Risk	Weight
Trial 1	Intervention total =A+B=	A =	B =
	Control total = C+D	C =	D=

		Event	No event
		(A+C)	(B+D)	Relative Risk	Weight
Trial 2	Intervention total =A+B=	A =	B =
	Control total = C+D	C =	D=

Value of P =
Value of R =
Value of S =
Common relative risk =
95% confidence interval =

A permanent record of the analysis can be obtained by printing the page.

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
1/10/1999