I have a situation in which that there are 4 cases with a condition per 1000 people surveyed (binary). I am interested in performing a logistic regression to determine the risk factors (binary). Is it possible to perform such an analysis with SPSS?
Solved – Rare event logistic regression
logisticspss
Best Answer
If the total sample size is such that you have at least 15 times as many cases (not people) as there are candidate variables you should be OK. Note that SPSS does not make it easy to relax the linearity assumption of predictors.