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","C",and "D" Using MH method for zero entry in box "A"
Group characteristic
(A+C) (B+D)
OUTCOMETotal "yes" A+B= A = B =
Total "no" C+D C = D=

Value of R =
Value of S =
Value of D =
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