Table 2.
Stage at diagnosis | ||||
---|---|---|---|---|
Characteristic | Total (n=1,239) | Regional (n=1,032) | Distant (n=207) | p-valueb |
% | % | % | ||
Chemotherapy | 0.0004 | |||
Yes | 22.1 | 20.3 | 31.4 | |
No | 77.9 | 79.7 | 68.6 | |
Census tract poverty level % a | 0.54 | |||
<3.87% (wealthier) | 25.0 | 25.5 | 22.7 | |
3.87% to 6.65% | 25.0 | 25.4 | 23.2 | |
6.66% to 11.00% | 24.9 | 24.8 | 25.6 | |
>11.00% (poorer) | 25.1 | 24.3 | 28.5 | |
Age | 0.69 | |||
66–74 yr | 36.5 | 36.2 | 37.7 | |
≥ 75 yr | 63.5 | 63.8 | 62.3 | |
Gender | 0.90 | |||
Male | 56.9 | 57.0 | 56.5 | |
Female | 43.1 | 43.0 | 43.5 | |
Marital status | 0.19 | |||
Married | 53.0 | 52.8 | 54.1 | |
Unmarried/Unknown | 47.0 | 47.2 | 45.9 | |
Comorbidity | 0.55 | |||
0–1 | 91.0 | 89.9 | 92.3 | |
≥ 2 | 9.0 | 10.1 | 7.7 | |
Histology | <.0001 | |||
Superficial spreading | 15.1 | 17.3 | 3.9 | |
Nodular | 25.1 | 28.9 | 6.3 | |
Lentigo maligna | 3.2 | 3.6 | 1.4 | |
Other | 56.6 c | 50.2 d | 88.4 e | |
Body site | <.0001 | |||
Trunk | 16.8 | 18.3 | 9.2 | |
Face | 26.8 | 29.5 | 13.5 | |
Upper limb | 21.2 | 23.3 | 10.6 | |
Lower limb | 20.3 | 23.2 | 6.3 | |
Not specified | 14.9 | 5.7 | 60.4 | |
Thickness of tumor (mm) | <.0001 | |||
≤ 2 | 30.5 | 33.0 | 17.9 | |
> 2 | 45.8 | 52.9 | 10.6 | |
Unknown/not specified | 23.7 | 14.1 | 71.5 | |
Ulceration | <.0001 | |||
Present | 41.1 | 49.2 | 0.5 | |
Absent/not specified | 58.9 | 50.8 | 99.5 | |
Positive nodes | 0.07 | |||
≥ 1 | 15.2 | 16.0 | 11.1 | |
0 or not reported | 84.8 | 84.0 | 88.9 |
Quartiles for average percentage from 1990 & 2000 US Census data
Differences for each characteristic across the two categories of stage at diagnosis (regional and distant) were tested and calculated using the Pearson’s Chi-square test.
Other histology category included acral lentiginous
2.6%
3.0%
0.5%