Coefficient

Standard Errors

z-statistic

p-value

Surgical Stage 1

Intercept

−1.20

0.32

−3.78

0.00016

Clinical Stage 2

−0.06

0.86

−0.07

0.94757

Surgical Stage 2

Intercept

−2.66

0.60

−4.46

0.00001

Clinical Stage 2

2.66

0.80

3.32

0.00089