window push log using 5.20.EsophagealCa.tutorial.log, replace window push set more on window push * 5.20.EsophagealCa.tutorial.log window push * window push * Regress esophageal cancers against age and dose of alcohol window push * and tobacco using a model with interaction terms. window push * window push use 5.5.EsophagealCa.dta, clear window push sort tobacco window push generate smoke = tobacco window push recode smoke 3=2 4=3 window push label variable smoke "Smoking (gm/day)" window push label define smoke 1 "0-9" 2 "10-29" 3 ">= 30" window push label values smoke smoke window push * window push * Regress cancer against age, alcohol and smoke. window push * Include alcohol-smoke interaction terms. window push * window push logistic cancer i.age alcohol##smoke [freq=patients] window push log close