Table 4

Results of logistic regression model for factors associated with breast cancer risk.

Factors*

OR (95%CI)

P value

Age (≥ 50) years

2.61 (2.20–3.11)

< 0.001

Induced abortion

1.66 (1.39–1.98)

< 0.001

Oral contraceptive use

0.60 (0.48–0.74)

< 0.001

*The significant risk factors in Table 3 with a distribution frequency >10% including age ≥ 50, induced abortion, BMI ≥ 25, education ≥ 13 years, spontaneous abortion, smoking, breast feeding, oral contraceptive use and nullipara were further evaluated in the multivariable logistic regression analyses.

Ozmen et al. World Journal of Surgical Oncology 2009 7:37   doi:10.1186/1477-7819-7-37