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460,466
2007 Jan 26
0
replicating the odds ratio from a published study- post # 2
...ou have another one lying around somewhere?
> >
>Alternatively, the odds ratio presumably compares two groups. If you
>know the group sizes, the two odds ratios may be reconstructed. If I
>make a wild guess that the groups are roughly equal, I might get
>
> > M <- cbind(c(460,460),c(6,35))
> > M
> [,1] [,2]
>[1,] 460 6
>[2,] 460 35
> > fisher.test(M)
>
> Fisher's Exact Test for Count Data
>
>data: M
>p-value = 7.406e-06
>alternative hypothesis: true odds ratio is not equal to 1
>95 percent confidence int...