Hazard Ratio

95% CI

P value

Anemia (unadjusted)

3.42

1.89, 6.2

0.000

Model A

2.14

1.13, 4.07

0.019

Model B

2.45

1.35, 4.46

0.003

Model C¥

2.97

1.64, 5.40

0.000

Model D?/sup>

2.85

1.52, 5.32

0.001

Model Cµ

2.19

1.12, 4.27

0.021