Research Article
Smoking and Breast Cancer Recurrence after Breast Conservation Therapy
Table 1
Demographic and tumor characteristics of sample by smoking history.
| | | Smoking history—number (%) | value | | | Never () | Prior () | Current () |
| | Race | | | | <0.001 | | White | 288 (77%) | 160 (81%) | 31 (60%) | | Black | 43 (11%) | 21 (11%) | 17 (33%) | | Asian | 13 (3%) | 1 (1%) | 0 (0%) | | Hispanic | 21 (6%) | 5 (3%) | 4 (7%) | | Other | 11 (3%) | 9 (5%) | 0 (0%) | | Age (mean ± SD) | | | | 0.007 | | Stage | | | | 0.004 | | 0 | 96 (26%) | 55 (28%) | 20 (38%) | | 1 | 211 (57%) | 92 (47%) | 16 (31%) | | 2 | 57 (15%) | 43 (22%) | 16 (31%) | | 3 | 8 (2%) | 6 (3%) | 0 (0%) | | Histology | | | | 0.08 | | Infiltrating ductal | 195 (52%) | 110 (56%) | 27 (52%) | | DCIS | 95 (25%) | 53 (27%) | 21 (40%) | | Infiltrating lobular | 21 (6%) | 13 (7%) | 1 (2%) | | Mixed ductal/lobular | 15 (4%) | 6 (3%) | 0 (0%) | | Other | 50 (13%) | 14 (7%) | 3 (6%) | | ERa (% positive) | 86% (287/334) | 84% (144/171) | 86% (37/43) | 0.87 | | PRa (% positive) | 78% (253/323) | 76% (129/170) | 83% (35/42) | 0.56 | | Her2/neua (% positive) | 16% (34/206) | 10% (12/120) | 17% (5/29) | 0.24 |
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ER/PR only obtained on DCIS after 2005 and Her2/neu obtained on invasive cases only after 2005.
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