use “lab3.dta”, clear

glm death i.hlamat c.age_don c.age i.txtype c.year, family(binomial) link(log) eform

logistic death i.hlamat c.age_don c.age i.txtype c.year

margins txtype, post

nlcom log(_b[1.txtype])-log(_b[0.txtype])

logistic death i.hlamat c.age_don c.age i.txtype c.year

replace txtype = 1 
predict p1, p


summ p1

replace txtype = 0
predict p0, p

summ p0