Table 3. Multivariate analysis of factors associated with p53 signature positivity.

Variables	Univariate		Multivariate
	OR	p value	OR	p value
Age, per 1 year	1.051 (1.011–1.092)	0.012*	0.973 (0.893–1.061)	0.540*
BMI, per 1 kg/m2	1.124 (0.985–1.282)	0.083*	1.075 (0.927–1.248)	0.339*
Post-menopausal	3.682 (1.220–11.110)	0.021*	3.129 (0.430–22.748)	0.260*
Gravidae	0.115 (0.025–0.522)	0.005*	0.112 (0.017–0.731)	0.022*

OR are shown with the 95% confidence interval. Factors for multivariate analysis included age, BMI, menopausal status, and pregnancy. Parity was not included in multivariate analysis because it was considered an intermediate variable between pregnancy and p53 signature positivity.

OR, odds ratio; BMI, body mass index.

^*Logistic regression analysis.