Table 2. Rates of subsequent breast cancer after primary breast cancer for men and women in Surveillance, Epidemiology, and End Results program 9 registries, 1973–2012.

^aComparing females and males.

^bDenominator for percent calculation included full sample.

^cDenominator for percent calculation included sample with subsequent breast cancers and known laterality for each breast cancer.

Abbreviations: ‐, numbers suppressed due to small sample size; CI, confidence interval.