Using the ACTG 019 data from Problem 6.2, recode treatment so it is coded ZDV = 0 and placebo = 1. How do the hazard ratios, CIs, likelihood ratio (LR), and Wald tests compare to the original coding?...

Using the ACTG 019 data from Problem 6.2, recode treatment so it is coded ZDV = 0 and placebo = 1. How do the hazard ratios, CIs, likelihood ratio (LR), and Wald tests compare to the original coding? If any are different, how are they different?

Problem 6.2

In the ACTG 019 data, treatment rx is coded ZDV = 1 and placebo = 0. Define a new variable rxplus11 which is coded ZDV = 12 and placebo = 11; this can be done using the Stata command generate rxplus11=rx+11. Fit a Cox model with rxplus11 as the only predictor, then fit a second Cox model with rx as the only predictor. How do the two results compare?