Risk of breast cancer death by amount, duration and intensity of statin use pre-diagnosis compared to non-users in a cohort of all breast cancer cases diagnosed in Finland during 1995–2003, with information on medication use available since 1995.

*Calculated with Cox regression model adjusted for age, tumor morphology and treatment selection.†Women with statin usage at the year of diagnosis categorized as current pre-diagnostic users; women with statin usage before the diagnosis but not at the year of diagnosis considered previous pre-diagnostic users.‡Stratum cut-point set at median of amount, duration and intensity of usage.¶Calculated by adding total cumulative number of pre-diagnostic DDDs, years of usage or intensity of use (DDDs/year) as a continuous variable into the Cox regression model.Risk of breast cancer death by amount, duration and intensity of statin use pre-diagnosis compared to non-users in a cohort of all breast cancer cases diagnosed in Finland during 1995–2003, with information on medication use available since 1995.