Table 1.
Characteristics of male breast cancer patients
| Characteristic | No second cancer | Second cancer | Total | P value |
| Age (mean years (SD)) | 64.16 (12.90) | 66.90 (9.72) | 64.47 (12.61) | 0.0002 |
| Follow-up (mean years (SD)) | 4.39 (3.74) | 4.38 (3.31) | 4.39 (3.69) | 0.9405 |
| Age (median years (IQR) | 66.00 (55.00–74.00) | 68.00 (61.00–73.00) | 66.00 (56.00–74.00) | |
| Follow-up (median years (IQR) | 3.35 (1.33–6.69) | 3.39 (1.46–6.82) | 3.36 (1.33–6.72) | |
| Age (no. of subjects (percent)) | ||||
| <60 years | 577 (33.84) | 41 (18.55) | 618 (32.09) | <0.0001 |
| 60 to 69 years | 458 (26.86) | 89 (40.27) | 547 (28.04) | |
| 70+ years | 670 (39.30) | 91 (41.18) | 761 (39.51) | |
| Follow-up (no. of subjects (percent)) | ||||
| <1 year | 342 (20.06) | 42 (19.00) | 384 (19.94) | 0.4921 |
| 1 to 5 years | 731 (42.87) | 88 (39.82) | 819 (42.52) | |
| >5 years | 632 (37.07) | 91 (41.18) | 723 (37.54) | |
| Race (no. of subjects (percent)) | ||||
| Non-Hispanic white | 1,272 (74.60) | 182 (82.35) | 1,454 (75.49) | 0.0117 |
| Other | 433 (25.40) | 39 (17.65) | 472 (24.51) | |
| Total (no. of subjects (percent)) | 1,705 (88.53) | 221 (11.47) | 1,926 (100.00) |
A p value < 0.05 means statistically significant. IQR, interquartile range; SD, standard deviation.