Question 46. Added question 45 for reference

1point Now suppose arotter Cox regression is fit with a categorical version of histelegie stage as it's predictor yielding the following results: Infarad of mortaility of tire t )= h().(!)) + Lim + 2.2, # 3 1m. where a t for patients with stage 2 (and O feel xy - for paffects with stage 3 (und O if not, and xy 21 for patients with stage 4 jand OF meif The standand eurs for the sieges of a ty andity are 1. 1 and 1respectively - Based on this model jith and mitte of death for patients with a bistologie stage of 4 pared to patients with a a 31 10.05 d 221 AS Now suppose another Con regress on is lit with a cate e as i's predictor yielding the following results: In(hazard of mortality or time to )- In()()) 4 1.6m, + 2:2es + 2. 1zy. where al for patients with stage 2 (and Of noll Nyct for patients with stage J jand OF notj, and wy 1 for patients with stage 4 (and 0 if not). The standard emers for the slopes of 19 19 and ty are | | and Frespectively flawed on the results from this mode Is the 95% Cl for the haz 452 b. 1.0, 154.0)