Chapter 10, Section 10.3.1

Study of Low Birth Weight Infants

Logistic Regression Model

data lowbwt;
infile 'bpd.dat';
input bpd weight gestage toxemia;

weight=weight/100;


title1 Logistic regression model for BPD as a function of Birth Weight;
title2 Study of Low Birth Weight Infants;

proc genmod descending;
model bpd = weight / dist=binomial link=logit;
run;

<Selected Output>

title1 Logistic regression model for BPD as a function of
title2 Birth Weight, Gestational Age, and Toxemia;
title3 Study of Low Birth Weight Infants;

proc genmod descending;
model bpd = weight gestage toxemia / dist=binomial link=logit;
run;

<Selected Output>