Control patients

Breast cancer patients

p-value

Characteristics

n = 400 (%)

n = 400 (%)

Age group (mean ± SD years)

45.51 ± 11.25

45.83 ± 11.05

0.685

Age group (years)

22 - 34

64 (16)

60 (15)

0.843

35 - 44

112 (28)

108 (27)

45 and over

224 (56)

232 (58)

BMIb (Kg/m2)

24.40 ± 3.22

28.35 ± 4.36

<0.001

Age at menarche (mean ± SD years)

12.31 ± 1.39

11.98 ± 1.59

0.002

Age at menopause (mean ± SD years)

51.28 ± 2.74

50.22 ± 5.55

0.025

Menaupausalstatus (%)

No

240 (60)

144 (36)

<0.001

Yes

160 (40)

256 (64)

Number of children (mean ± SD years)

3.97 ± 2.17

2.81 ± 2.20

<0.001

Contraception (%)

Never

96 (24.1)

102 (25.5)

<0.001

Lessthan six month

250 (62.7)

199 (49.9)

Abovesix month

54 (13.5)

99 (24.8)

Type of contraception (%)

Hormonal

100

100

Barrier

0

0