Table 1: Univariate analysis of patient characteristics for breast disease.

Patient characteristics

Breast Disease

p value

No (N = 316)

Yes (N = 1716)

Age (years)

N = 314

N = 1714

 

    Mean (SD)

44.6 (9.7)

41.2 (10.4)

< 0.001

    Min, Max

20, 80

18, 81

 

Parity (# of deliveries)

N = 316

N = 1716

 

    Median (Min, Max)

4 (1, 8)

4 (1, 8)

0.489

History of benign breast disease

 

 

 

    No

288 (91.4%)

1528 (89.0%)

0.206

    Yes

27 (8.6%)

188 (11.0%)

History of cancer

 

 

 

    No

314 (99.4%)

1709 (99.6%)

0.580

    Yes

2 (0.6%)

7 (0.4%)

Family history of breast cancer

 

 

 

   No

252 (79.7%)

1515 (88.3%)

< 0.001

   Yes

64 (20.3%)

201 (11.7%)

Caesarean section

 

 

 

    No

248 (80.3%)

1416 (84.0%)

0.105

    Yes

61 (19.7%)

270 (16.0%)

# of caesarean section

N = 61

N = 270

 

    Median (Min, Max)

1 (1, 6)

2 (1, 7)

0.861