What if odds ratio is 0?

If you have an infinite odds in the denominator, then your odds ratio is zero. Finally, if you have a zero odds in the denominator, then your odds ratio is infinite. The only case you can't handle is when both groups have 100% survival or 0% survival. This forces you to divide infinity by infinity or zero by zero.

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2023-12-09 20:57:13

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Is the odds ratio positive or negative?
Positive odds ratios indicate that the event is more likely to occur, whilst negative odd ratios indicate the event is less likely to occur.
2024-02-19 03:18:38

What is 0.2 odds ratio?
An odds of 0.2 however seems less intuitive: 0.2 people will experience the event for every one that does not. This translates to one event for every five non-events (a risk of one in six or 17%).
2023-12-11 03:23:52

Can you have an odds ratio of 0?
As odds of an event are always positive, the odds ratio is always positive and ranges from zero to very large. The relative risk is a ratio of probabilities of the event occurring in all exposed individuals versus the event occurring in all non-exposed individuals.
2023-09-20 20:17:34

What does an odds ratio of 0.15 mean?
Because it is an OR, we must say that for every 0.15 (or 15) persons who experience the event in the experimental group, 1 person (or 100 persons) will experience the event in the control group. That is, the odds are 15 to 100.
2023-03-20 10:05:45

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