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chi square test - using R

Confidence intervals of odds ratio


Gives something like this (results edited for clarity):

$data Outcome Predictor Disease1 Disease2 Total Exposed1 800 3 803 Exposed2 17 1 18 Total 817 4 821 oddsratio.wald(tabodds) $measure odds ratio with 95% C.I. Predictor estimate lower upper Exposed1 1.00000 NA NA Exposed2 15.68627 1.551454 158.5991 oddsratio.fisher(tabodds) $measure odds ratio with 95% C.I. Predictor estimate lower upper Exposed1 1.00000 NA NA Exposed2 15.48370 0.2823527 204.6715 oddsratio.midp(tabodds) $measure odds ratio with 95% C.I. Predictor estimate lower upper Exposed1 1.00000 NA NA Exposed2 16.77320 0.5638613 153.095