Table 2.

Multivariable prognostic model for the derivation dataset

Variable	$$\hat{\beta }$$	SE
age 3	1.07	0.40
age 3 × ln (age)	9.13	2.64
meno	0.46	0.12
sized1	0.23	0.08
sized2	0.31	0.08
nodes-0.5	-1.74	0.14
er	-0.34	0.13
hormon	-0.35	0.08

Note that for legibility of the regression coefficients, age was divided by 100 and er by 1000 before analysis.