Table 2.

Risk of melanoma after breast cancer among women with and without antiestrogens, Geneva Cancer Registry 1980 to 2008

Antiestrogen useIncidence ratesObserved cases (O)Expected cases (E)SIR(O/E)95% CIP
 No60.32314.391.601.08–2.120.022
 Yes45.01111.270.980.40–1.560.572
 All54.33425.661.320.93–1.710.07

NOTE: Age-standardized (Geneva female population distribution) incidence rates per 100,000 person-years.