Table 1.
Characteristic | No. of Patients (N = 10,197) | % |
---|---|---|
Patient factors | ||
Age, years | ||
< 40 | 1,055 | 10.3 |
40-49 | 2,397 | 23.5 |
50-59 | 3,162 | 31.0 |
60-69 | 1,968 | 19.3 |
≥ 70 | 1,615 | 15.4 |
Race | ||
White | 8,436 | 82.7 |
Black | 1,371 | 13.5 |
Other | 277 | 2.7 |
Unknown | 113 | 1.1 |
Charlson-Deyo Score | ||
0 | 5,271 | 51.7 |
1 | 808 | 7.9 |
2 | 159 | 1.6 |
Unknown | 3,959 | 38.8 |
Primary payer | ||
Not insured | 462 | 4.5 |
Private insurance | 5,862 | 57.5 |
Public insurance | 3,608 | 35.4 |
Unknown | 265 | 2.6 |
Geographic location | ||
Atlantic | 1,499 | 14.7 |
Great Lakes | 1,790 | 17.6 |
Midwest | 900 | 8.8 |
Mountain | 478 | 4.7 |
Northeast | 529 | 5.2 |
Pacific | 1,404 | 13.8 |
South | 669 | 6.6 |
Southeast | 2,031 | 19.9 |
West | 897 | 8.8 |
Income | ||
< $30,000 | 1,410 | 13.8 |
$30,000-$34,900 | 1,787 | 17.5 |
$35,000-$45,900 | 2,641 | 25.9 |
> $46,000 | 3,872 | 38.0 |
Unknown | 487 | 4.8 |
Community | ||
Urban/metro: population > 1,000,000 | 537 | 5.3 |
Urban/metro: population 250,000-1,000,000 | 5,040 | 49.4 |
Urban/metro: population < 250,000 | 1,896 | 18.6 |
Urban: population > 20,000 adjacent to metro area | 1,080 | 10.6 |
Urban: population > 20,000 not adjacent to metro area | 445 | 4.4 |
Urban: population 2,500-19,999 adjacent to metro area | 176 | 1.7 |
Urban: population 2,500-19,999 not adjacent to metro area | 543 | 5.3 |
Rural: population < 2,500 adjacent to metro area | 301 | 3.0 |
Rural: population < 2,500 not adjacent to metro area | 84 | 0.8 |
Tumor factors | ||
Grade | ||
Well differentiated | 223 | 2.2 |
Moderately differentiated | 2,189 | 21.5 |
Poorly differentiated | 5,923 | 58.1 |
Undifferentiated | 246 | 2.4 |
Unknown | 1,616 | 15.9 |
Nodal stage | ||
0 | 1,707 | 16.7 |
1 | 2,845 | 27.9 |
2 | 1,642 | 16.1 |
3 | 957 | 9.4 |
Unknown | 3,046 | 29.9 |
Treatment factors | ||
Treatment facility type | ||
Academic/research program | 3,240 | 31.8 |
Community cancer program | 1,538 | 15.1 |
Comprehensive community cancer program | 5,242 | 51.4 |
Other | 177 | 1.7 |
Operation performed | ||
Segmental mastectomy | 536 | 5.3 |
Unilateral mastectomy | 1,079 | 10.6 |
Ipsilateral mastectomy + CPM | 224 | 2.2 |
Unilateral MRM | 6,890 | 67.6 |
Ipsilateral MRM + CPM | 1,131 | 11.1 |
Unilateral RM | 162 | 1.6 |
Ipsilateral RM + CPM | 38 | 0.4 |
Other/Unknown | 137 | 1.3 |
Treatment received | ||
Surgery alone | 500 | 4.9 |
Surgery + chemo | 2,728 | 26.8 |
Surgery + RT | 158 | 1.6 |
Surgery + RT + chemo | 6,811 | 66.8 |
Abbreviations: chemo, chemotherapy; CPM, contralateral prophylactic mastectomy; MRM, modified radical mastectomy; RM, radical mastectomy; RT, radiation therapy.