Kaplan-Meier analyses of the differential protective effects of a history of TC on BC-specific survival between young and old patients.

Abstract

A, comparisons of the effects of a history of TC on BC-specific survival curves in BC/TC and matched BC-only patients between the group aged B, comparisons of the effects of a history of TC on BC-specific survival curves in BC-1st and matched BC-only patients between the group aged C, comparisons of the effects of a history of TC on BC-specific survival curves in TC-1st and matched BC-only patients between the group aged BC, breast cancer; TC, thyroid cancer; BC-only, patients only with a diagnosis of breast cancer and without a history of thyroid cancer; BC/TC, breast cancer patients also with a history of thyroid cancer diagnosed any time—either before or after the diagnosis of breast cancer; BC-1st, breast cancer was diagnosed first, followed by diagnosis of thyroid cancer; TC-1st, thyroid cancer was diagnosed first, followed by diagnosis of breast cancer.</p