Table 3 Selected SNP characteristics; Location, minor allele frequencies and adjusted Odds Ratio (OR) of above-median percent mammographic density (>28.5 %) by genotypes

rs302064

Intron

A > G

0.368 (0.39)

aa

1.0

Ref

Ref

Aa

3.74

0.95,14.6

0.059

AA

6.46

1.61, 25.9

0.009

rs2474148

Intron

G > T

0.352 (0.35)

aa

1.0

Ref

Ref

Aa

2.01

0.55, 7.39

0.29

AA

4.23

1.17, 15.6

0.028

rs12154178

Intron

C < A

0.312 (0.26)

aa

1.0

Ref

Ref

Aa

3.92

0.98, 7.39

0.054

AA

5.44

1.42, 20.9

0.014

rs2347867

Intron

G > A

0.365 (0.30)

aa

1.0

Ref

Ref

Aa

1.09

0.36, 3.29

0.879

AA

3.38

1.23, 10.1

0.030

rs6927072

Intron

T > G

0.359 (0.28)

aa

1.0

Ref

Ref

Aa

1.80

0.58, 5.56

0.309

AA

3.44

1.15, 10.3

0.028

rs2982712

Intron

C < T

0.297 (−)

aa

1.0

Ref

Ref

Aa

3.48

1.29, 9.36

0.014

AA

3.97

1.34, 11.7

0.013

rs3020407

Intron

T < C

0.455 (0.47)

aa

1.0

Ref

Ref

Aa

1.74

0.57, 10.3

0.331

AA

3.47

1.17, 10.3

0.024

rs9322335

Intron

G > A

0.327 (0.27)

aa

1.0

Ref

Ref

Aa

1.03

0.27, 3.88

0.969

AA

1.77

0.49, 6.40

0.388