Table 7. Crossover analysis in genotypes-menopausal status interaction study on cervical cancer.

Genotype	Menopausal status	Patients (N = 1486) n (%)	Controls (N = 1536) n (%)	OR(95%CI) a	P a
AA/GA	Menopause	642(48.15)	759(51.53)	1
AA/GA	Premenopausal	471(34.79)	517(35.10)	1.80(1.42–2.29)	<0.001
GG	Menopause	105(7.75)	117(7.94)	1.06(0.79–1.41)	0.700
GG	Premenopausal	126(9.31)	80(5.43)	3.18(2.24–4.52)	<0.001
Interaction				P b = 0.018

^aAdjusted for age, smoking status, family history of any cancer and parity.

^b P value for multiplicative interaction.