log using 5.9.EsophagealCa.ClassVersion.log, replace * 5.9.EsophagealCa.ClassVersion.log * * Calculate age-adjusted odds ratio from the Ille-et-Vilaine study * of esophageal cancer and alcohol using logistic regression. * use 5.5.EsophagealCa.dta, clear * * First, define indicator variables for age strata 2 through 6 * generate age2 = 0 replace age2 = 1 if age == 2 generate age3 = 0 replace age3 = 1 if age == 3 generate age4 = 0 replace age4 = 1 if age == 4 generate age5 = 0 replace age5 = 1 if age == 5 generate age6 = 0 replace age6 = 1 if age == 6 logit cancer age2 age3 age4 age5 age6 heavy [freq=patients] logistic cancer age2 age3 age4 age5 age6 heavy [freq=patients] logistic cancer i.age heavy [freq=patients] log close