Logistic Regression: A Self-learning Text, Third Edition (Statistics in the Health Sciences)

6. Suppose the model in Question 5 is revised to contain
   interaction terms:
   logit PðXÞ¼aþb 1 NSþb 2 OCþb 3 AFSþg 1 AGEþg 2 RACE
   þd 11 ðNSAGEÞþd 12 ðNSRACEÞ
   þd 21 ðOCAGEÞþd 22 ðOCRACEÞ
   þd 31 ðAFSAGEÞþd 32 ðAFSRACEÞ:

For this revised model, answer the same questions as

given in parts a and b of Question 5.

a.

b.

100 3. Computing the Odds Ratio in Logistic Regression