Table 1: Demographic, medical, and lifestyle data of the patients.

CharacteristicsControl groupBreast cancer

Total of patients28 (100.0)28 (100.0)
Age in years (mean ± SD) 48.1 ± 11.850.8 ± 12.8
Race [ (%)]
 Caucasian20 (71.4)22 (78.6)
 Non-Caucasian8 (28.6)6 (21.4)
Menopause [ (%)]
 Premenopausal19 (67.9)20 (71.4)
 Postmenopausal9 (32.1)8 (28.6)
Family history of breast cancer [ (%)]
 Yes6 (21.4)15 (53.6)
 No22 (78.6)13 (46.4)
Physical exercises [ (%)]
 Yes11 (39.3)9 (32.1)
 No17 (60.7)19 (67.9)
Smoker [ (%)]
 Never smoked20 (71.4)12 (42.9)
 Ex-smoker8 (28.6)13 (46.4)
 Smoking0 (0.0)3 (10.7)
Marital status [ (%)]
 Single7 (25.0)6 (21.4)
 Married16 (57.1)15 (53.6)
 Divorced1 (3.6)3 (10.7)
 Widow4 (14.3)4 (14.3)

SD: standard deviation.