Table 1.
All (N=1252) |
Mastectomy (N=201) |
BCS alone (N=327) |
BCS + RT (N=318) |
BCS + RT and ET (N=276) |
BCS + ET (N=130) |
|||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
N | % | N | % | N | % | N | % | N | % | N | % | |
Age at diagnosis | ||||||||||||
<40 | 27 | 2.2 | 7 | 3.5 | 7 | 2.1 | 5 | 1.6 | 8 | 2.9 | 0 | 0.0 |
40–49 | 300 | 24.0 | 53 | 26.4 | 78 | 23.8 | 73 | 23.0 | 72 | 26.1 | 24 | 18.5 |
50–59 | 379 | 30.3 | 48 | 23.9 | 79 | 24.2 | 104 | 32.7 | 107 | 38.8 | 41 | 31.5 |
60–69 | 277 | 22.1 | 53 | 26.4 | 52 | 15.9 | 82 | 25.8 | 56 | 20.3 | 34 | 26.2 |
70–79 | 194 | 15.5 | 35 | 17.4 | 62 | 19.0 | 42 | 13.2 | 30 | 10.9 | 25 | 19.2 |
80+ | 75 | 6.0 | 5 | 2.5 | 49 | 15.0 | 12 | 3.8 | 3 | 1.1 | 6 | 4.6 |
Year of diagnosis | ||||||||||||
1994–1998 | 218 | 17.4 | 40 | 19.9 | 85 | 26.0 | 85 | 26.7 | 3 | 1.1 | 5 | 3.9 |
1999–2003 | 386 | 30.8 | 74 | 36.8 | 106 | 32.4 | 56 | 17.6 | 92 | 33.3 | 58 | 44.6 |
2004–2008 | 378 | 30.3 | 54 | 26.9 | 88 | 26.9 | 90 | 28.3 | 110 | 39.9 | 36 | 27.7 |
2009–2012 | 270 | 21.6 | 33 | 16.4 | 48 | 14.7 | 87 | 27.4 | 71 | 25.7 | 31 | 23.9 |
Mode of detection | ||||||||||||
Screen-detected | 948 | 85.3 | 140 | 80.9 | 234 | 82.7 | 226 | 85.3 | 239 | 90.2 | 109 | 86.5 |
Symptom-detected | 164 | 14.7 | 33 | 19.1 | 49 | 17.3 | 39 | 14.7 | 26 | 9.8 | 17 | 13.5 |
Missing | 140 | 28 | 44 | 53 | 11 | 4 | ||||||
Grade | ||||||||||||
Low | 162 | 14.8 | 16 | 9.4 | 58 | 21.6 | 22 | 8.2 | 32 | 12.0 | 34 | 27.9 |
Intermediate | 544 | 49.7 | 75 | 44.1 | 147 | 54.9 | 120 | 44.9 | 133 | 49.8 | 69 | 56.6 |
High | 388 | 35.5 | 79 | 46.5 | 63 | 23.5 | 125 | 46.8 | 102 | 38.2 | 19 | 15.6 |
Missing | 158 | 31 | 59 | 51 | 9 | 8 | ||||||
Size | ||||||||||||
<= 1 cm | 492 | 57.6 | 52 | 39.7 | 151 | 73.3 | 119 | 51.3 | 102 | 50.7 | 68 | 80.9 |
1.1–2 cm | 206 | 24.1 | 31 | 23.7 | 33 | 16.0 | 69 | 29.7 | 62 | 30.8. | 11 | 13.1 |
>2 cm | 156 | 18.3 | 48 | 36.6 | 22 | 10.7 | 44 | 19.0 | 37 | 18.4 | 5 | 6.0 |
Missing | 398 | 70 | 121 | 86 | 75 | 46 | ||||||
ER status | ||||||||||||
Negative | 102 | 17.7 | 29 | 34.5 | 13 | 11.5 | 53 | 34.4 | 6 | 3.8 | 1 | 1.5 |
Positive | 474 | 82.3 | 55 | 65.5 | 100 | 88.5 | 101 | 65.6 | 151 | 96.2 | 67 | 98.5 |
Missing | 676 | 117 | 214 | 164 | 119 | 62 |
Abbreviations: BCS, breast conserving surgery; ER, estrogen receptor; ET, endocrine therapy; RT, radiation therapy.