topic Re: Instead of Odds Ratio I see Decimal place? in Discussions

Instead of Odds Ratio I see Decimal place?

Parrot943 — Thu, 01 Feb 2024 15:05:29 GMT

Wondering how to fix this in JMP?

I have successfully run three chi-squared tests, and found the the odds ratio for each of them. Why is JMP not returning an odds ratio in this case?

Thanks for any help you are able to provide!

Re: Instead of Odds Ratio I see Decimal place?

dlehman1 — Thu, 01 Feb 2024 14:55:47 GMT

You really should show more of the JMP output (like the matrix), but I suspect that one of your off diagnonal entries is zero. The odds ratio is computed by multiplying the on-diagonal entries (in the 2x2 matrix) and dividing that product by the product of the off-diagonal entries. If either of the latter are zero, then that ratio is undefined. I suspect that is why you are not getting an odds ratio.

Re: Instead of Odds Ratio I see Decimal place?

Parrot943 — Thu, 01 Feb 2024 15:15:58 GMT

You are right - didn't catch this before. Thank you!