I am writing my thesis for medicine about postoperative complications of a disease (IBD). The dependent variable in this case is whether the patients had a post-operative complication or not (binary) within 30 days of their operation. The sample size for my study is n = 62.

I have collected numerous (32) independent variables (age, sex, different lab values, time of operation, etc), some are continuous and others are categorical variables.

I have so far done an univariate analysis (mann-whitney for continuous and fishers exact test for the categorical variables)

I now wish to do some form of multivariate analysis, considering multiple logistic regression as an option, but am struggling finding the suitable test, and also interpreting the outcomes when computed using RStudio.

Any help or guidance would be greatly appreciated.

Thank you in advance

Manuel