OpenVigil - 2x2 contingency table calculator

Version 2015-10-06,
The calculation of the measurements of disproportionality has been successfully validated against R.

Fill in at least 4 fields with numbers and hit the button below to calculate the most common measurements of disproportionality used in pharmacovigilance in your 2x2 contingency table.

Drug/Event GroupsDrug usedNo drugSums
Event occuredDE dE E
No eventDe de e
SumsD d N