Assuming Intervention group to be mothers having c-section and control group to be mothers having natural birth. Also, the numerical data is as follows:
Mothers opting for natural mothers c section Adjusted OR n=75057 n=1515 Death 53 0 - Adverse Event 1215 9 2.7
(i) If the intervention group were similar in background factors to the control group, roughly how many adverse events would you expect in the intervention group?
(ii) If the adjusted odds ratio is correct, about how many adverse events would be expected if the 1515 mothers in intervention group had instead were in control group? What, in terms of their background risk, would this say about the those 1515 mothers from intervention group
I am getting (i) 24 by using simple expectations and (ii) 15 by simply multiplying 1.7 by 9.
extremely unsure about my answers and hence turned to you mathmos (cambridge term for mathematicians)
Any help will be appreciated!