OLS

(1)

OLS

(2)

OLS with robust SE(3)

Margin status

Close

0.188***

(0.062)

0.161**

(0.065)

0.161*

(0.086)

HER2 Status

Negative

Positive

0.025

(0.159)

0.010

(0.161)

0.025

(0.141)

0.010

(0.191)

PR Status

Negative

Positive

0.204

(0.161)

-0.068

(0.159)

0.204

(0.161)

-0.068

(0.093)

ER Status

N

P

-0.089

(0.164)

0.125

(0.156)

-0.089

(0.151)

0.125

(0.101)

Nuclear Grade

2

3

-0.015

(0.093)

0.072

(0.095)

-0.015

(0.068)

0.072

(0.074)

Ki67 proliferation index (%)

>=20%

<20%

-0.029

(0.194)

-0.022

(0.184)

-0.029

(0.122)

-0.022

(0.152)

Age at diagnosis

40-49

>=50

0.080

(0.148)

0.078

(0.139)

0.080

(0.100)

0.078

(0.104)

Constant

0.000

(0.033)

-0.175

(0.171)

-0.175

(0.158)

N

R2

57

0.142

57

0.319

57

0.319