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. Author manuscript; available in PMC: 2016 Sep 27.
Published in final edited form as: JAMA Oncol. 2015 Dec;1(9):1303–1310. doi: 10.1001/jamaoncol.2015.3151

Table 1.

Characteristics and mode of assignment of Medicare patients included in SEER-Medicare analysis.

Lung/Bronchus Prostate Breast Colorectal Other Total

N % N % N % N % N % N %
66–74 2,853 42% 3,366 55% 1,939 45% 268 26% 166 42% 8,592 46%
75+ 3,958 58% 2,725 45% 2,388 55% 781 74% 233 58% 10,085 54%

White 5,902 87% 5,034 83% 3,868 89% 907 86% 344 86% 16,055 86%
Black 559 8% 590 10% 230 5% 84 8% 27 7% 1,490 8%
Other 350 5% 467 8% 229 5% 58 6% 28 7% 1,132 6%

Married 3,305 49% 4,285 70% 2,018 47% 461 44% 200 50% 10,269 55%
Not Married 3,506 51% 1,806 30% 2,309 53% 588 56% 199 50% 8,408 45%

Region
Midwest 1,049 15% 794 13% 523 12% 237 23% 52 13% 2,655 14%
Northeast 1,727 25% 1,461 24% 1,155 27% 391 37% 142 36% 4,876 26%
South 1,579 23% 1,075 18% 710 16% 217 21% 67 17% 3,648 20%
West 2,456 36% 2,761 45% 1,939 45% 204 19% 138 35% 7,498 40%

Stage
I 1,653 24% 491 8% 2,435 56% 248 24% 205 51% 5,032 27%
II 214 3% 5,216 86% 1,128 26% 340 32% 53 13% 6,951 37%
III 1821 27% 139 2% 225 5% 288 27% 52 13% 2,525 14%
IV 2988 44% 220 4% 89 2% 169 16% 82 21% 3,548 19%
Unknown 135 2% 25 0% 450 10% 4 0% 7 2% 621 3%

Note: “Other” category includes: Corpus Uteri, Kidney/Renal Pelvis/Ureter, Liver/Intrahepatic Bile Duct/Gall Bladder, Ovary and Other Female Genital, Pancreas/Billiary Tract