Hi, I think you're having this problem because SAS is using effect coding for the coefficients but dummy variable coding for the Odds Ratios. By specifying " / param = ref" in the class statement you can make sure that SAS uses dummy variable coding for both the coefficients and ORs. UCLA's IDRE has a nice explanation of this: https://stats.idre.ucla.edu/sas/faq/in-proc-logistic-why-arent-the-coefficients-consistent-with-the-odds-ratios/.
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