can you use logistic regression to compare exposure why does logistic regression use coefficients can a logistic regression model be used for data sparseness? how to calculate the odds ratio how do you calculate odds ratio of exposure in logistic regression why use an odds ratio when the data is sparse? how to determine the odds ratio of a sampling when to use an odds ratio when is a logistic regression used for an example if a data set is sparse, how to calculate the odds ratio how to find a sparse sample in logistic regression how to compute risk odds ratio why use odds ratio when data is sparse how to use odds ratio what is the best way to find the odds ratio for an exposure why use odds ratio when data is sparse when is logistic regression used to measure risk when are odds ratios used for sampling how to calculate odds ratios how do you find the odds ratio of an exposure