Can an odd ratio be as low as <0.001?

#1
With a 95% CI of <0.001 to >999.999? Any idea what could be wrong?

(Sorry about the french output, will gladly provide more info if needed)

Thanks a lot!
 

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hlsmith

Less is more. Stay pure. Stay poor.
#2
This is likely related to complete separation of data, meaning that the predictor almost perfectly explains the outcome.

You can explore this by creating a 2x2 table of variable and outcome.