Parity

p

Nulliparous

Few previous deliveries

Multiparous

Average horizontal diameter (cm)

Right breast

15.12

16.1

18.28

0.003

Left breast

15.7

16.61

19.35

0.003

Average vertical diameter (cm)

Right breast

7.55

7.79

7.7

0.6

Left breast

7.74

8.04

8.20

0.5

Areola size (cm)

Right breast

3.59

3.95

4.9

0.001

Left breast

3.8

4.09

5.4

0.008