Greetings- I am trying to estimate the treatment effect for a pre/post design, subjects were measured on healthcare utilization 1yr before and after the intervention (non-random assignment). The dependent vars are cost/utilization measures that are right skewed, some zero-inflated. To control for the vastly different distribution of covariates, case subjects are matched to controls 1:1. For the dependent variables that are not zero-inflated I am using GEE in GENMOD with either Gamma or Negative Binomial distribution, however, with the zero-inflated dep vars, GEE is not available and am seeking advice on which SAS statistical procS are available that would accommodate the zero-inflated and matched design. Thanks in advance, Brandon Zagorski Pre-Post Matched Analysis
... View more
