Table 5.

Association of statin use and breast cancer risk by hormone use

Statin users	Breast cancer cases	Disease free	Multivariable-adjusted HR (95% CI)*	P for interaction
	n=2,707 %	n=90,081 %
Non-users of HT	49.3	56.6	1.29 (0.99–1.68)
Estrogen only users	19.3	19.2	1.02 (0.70–1.49)	0.31
Estrogen + progestin users	31.4	24.2	0.83 (0.59–1.17)	0.04

HR=hazard ratio and CI=confidence interval

^*Multivariable-adjusted models include age, HT use, diabetes, other lipid lowering drug use, and BMI