Table 3

Odds ratios of breast cancer risk by cytological categories and presence of epithelial cells in NAF, Sartorius Cohort 1970–1991.

Breast cancer by cytology:

In model: N = 946 # with breast cancer

n

%

OR

95% CI

p-value

No fluid

63

714

9%

1.0

(referent)

Fluid without epithelial cells

2

19

11%

1.4

0.32–6.4

0.64

Normal

11

89

12%

1.7

0.87–3.5

0.12

Hyperplasia or atypia

17

124

14%

2.0

1.1–3.6

0.02

Any epithelial cells:

No fluid/insufficient specimen

65

733

9%

1.0

(referent)

Unable to classify, normal, hyperplasia, atypia

28

213

13%

1.9

1.2–3.1

0.01

Baltzell et al. BMC Cancer 2008 8:75   doi:10.1186/1471-2407-8-75