Groups 3 and 4 had higher hazard ratio of deaths compared with group 2 but did not reach statistical significance (group 3: hazard ratio, 3.12; P = .07; group 4: hazard ratio, 2.38; P = .2).
1
0.0700
0.0700
Groups 3 and 4 had higher hazard ratio of deaths compared with group 2 but did not reach statistical significance (group 3: hazard ratio, 3.12; P = .07; group 4: hazard ratio, 2.38; P = .2).