Table 5 Multivariable logistic regression analysis to identify the factors associated with upgrade of atypical ductal hyperplasia with intraductal papilloma at biopsy

Median age (year)

1.06(1.02,1.10)

0.005

Median size (cm)

1.69(0.80,3.58)

0.17

Lesion types

 Mass-like lesion

1 (reference)

 Non-mass-like lesion

2.88(0.58,14.25)

0.19

Margin

 Circumscribed

1 (reference)

 Not circumscribed

1.66(0.54,5.14)

0.38

Calcifications on ultrasound

 Absent

1 (reference)

 Present

2.01(0.34,11.80)

0.44

Ki-67 status

 Negative

1 (reference)

 Positive

3.75(0.79,17.79)

0.10

 Unknown

0.20(0.03,1.35)

0.10

Imaging-pathology correlation

 Concordant

1 (reference)

 Discordant

3.67(1.05,12.83)

0.04