Table 1.

Clinicopathologic features of infiltrating breast carcinomas

Radiation-preceded breast carcinomasSporadic tumors (consecutive series)P
Median age (range), y39 (24-78)57 (33-84)0.0001
Postmenopause, % (n)23 (15 of 66)75.6 (31 of 41)<0.0001
Pathologic size, % (n)
    T151.6 (38 of 64)62.3 (38 of 61)
    T2-T332.7 (21 of 64)37.7 (23 of 61)NS
    T47.7 (5 of 64)0 (0 of 61)
Grade, % (n)
    16.8 (4 of 59)6.9 (4 of 58)
    244.0 (26 of 59)62.1 (36 of 58)NS
    349.2 (29 of 59)31.0 (18 of 58)
Lymph node (N+), % (n)46.7 (28 of 60)37.7 (20 of 53)NS
  • Abbreviation: NS, not significant.