I am currently using minitab to perform logistic regression analysis on my data (as I produce binary response data). My assay involves using two different backgrounds of cells (background A and B) and comparing particular mutant strains to a wild type for each backround (mutants 1-n). Currently i am using logistic regression in minitab to compare each mutant strain to the wild type for that particular background. However I would also like to compare particular mutants in background A to there equivalent in background B. I thought one way to do this would be to simply repeat the logistic regression anaylsis for each mutant taking background A as a reference value (as i use wild type currently). However as i would be looking at approximately 20 different mutant strains this would be a lot of logistic regression analysis, and I am concerned it would leave me susceptible to type 1 error.
Can anyone offer any help in this regrad of how I could possibly deal with this, it would be much appreciated.