Table 2.
Comparison of Cases by Matching Status with Medicare and Medicaid Files
| Anatomic Site | Cases matched successfully with Medicare |
Cases not matched with Medicare files |
p-value | Cases matched successfully with Medicaid |
Cases not matched with Medicaid Files |
p-value |
|---|---|---|---|---|---|---|
| Female Breast: | ||||||
| Age: | ||||||
| 65–69 | 5,186 (23.9%) | 158 (21.5%) | 524 (18.2%) | 4,820 (24.6%) | ||
| 70–74 | 5,697 (26.2%) | 167 (22.7%) | 599 (20.7%) | 5,265 (26.9%) | ||
| 75–79 | 4,899 (22.6%) | 162 (22.1%) | 564 (19.5%) | 4,497 (23.0%) | ||
| 80–84 | 3,331 (15.3%) | 123 (16.8%) | 521 (18.0%) | 2,933 (15.0%) | ||
| 85+ | 2,612 (12.0%) | 124 (16.9%) | 0.0006 | 681 (23.6%) | 2,055 (10.5%) | <0.0001 |
| Race: | ||||||
| Af-Am | 1,559 (7.2%) | 84 (11.4%) | 530 (18.4%) | 1,113 (5.7%) | ||
| All Other | 20,166 (92.8%) | 650 (88.6%) | <0.0001 | 2,359 (81.6%) | 18,457 (94.3%) | <0.0001 |
| Stage: | ||||||
| In situ | 2,857 (13.2%) | 80 (10.9%) | 265 (9.2%) | 2,672 (13.6%) | ||
| Local | 11,825 (54.4%) | 342 (46.6%) | 1,293 (44.7%) | 10,874 (55.6%) | ||
| Regional | 4,091 (18.8%) | 147 (20.0%) | 616 (21.3%) | 3,622 (18.5%) | ||
| Distant | 910 (4.2%) | ** | 184 (6.4%) | 775 (4.0%) | ||
| Unstaged | 1,910 (8.8%) | 109 (14.9%) | 511 (17.7%) | 1,508 (7.7%) | ||
| Unknown | 132 (0.6%) | ** | <0.0001 | 20 (0.7%) | 119 (0.6%) | <0.0001 |
| Total number of Cases | 21,725 | 734 | 2,889 | 19,570 | ||
| Prostate: | ||||||
| Age: | ||||||
| 65–69 | 7,168 (28.4%) | 173 (30.3%) | 347 (22.7%) | 6,994 (28.8%) | ||
| 70–74 | 7,812 (30.9%) | 132 (23.1%) | 348 (22.8%) | 7,596 (31.2%) | ||
| 75–79 | 5,667 (22.4%) | 143 (25.0%) | 337 (22.1%) | 5,473 (22.5%) | ||
| 80–84 | 2,881 (11.4%) | 70 (12.3%) | 249 (16.3%) | 2,702 (11.1%) | ||
| 85+ | 1,749 (6.9%) | 53 (9.3%) | 0.0011 | 245 (16.1%) | 1,557 (6.4%) | <0.0001 |
| Race: | ||||||
| Af-Am | 2,686 (10.6%) | 90 (15.8%) | 488 (32.0%) | 2,288 (9.4%) | ||
| All Other | 22,591 (89.4%) | 481 (84.2%) | <0.0001 | 1,038 (68.0%) | 22,034 (90.6%) | <0.0001 |
| Stage: | ||||||
| In situ | 29 (0.1%) | 0 (0.0%) | ** | ** | ||
| Local | 18,081 (71.5%) | 368 (64.4%) | 816 (53.5%) | 17,633 (72.5%) | ||
| Regional | 1,518 (6.0%) | 33 (5.8%) | 92 (6.0%) | 1,459 (6.0%) | ||
| Distant | 1,133 (4.5%) | 37 (6.5%) | 165 (10.8%) | 1,005 (4.1%) | ||
| Unstaged | 4,504 (17.8%) | 133 (23.3%) | 448 (29.4%) | 4,189 (17.2%) | ||
| Unknown | 12 (0.1%) | 0 (0.0%) | 0.0018 | ** | ** | <0.0001 |
| Total number of Cases | 25,277 | 571 | 1,526 | 24,322 | ||
| Colorectal: | ||||||
| Age: | ||||||
| 65–69 | 4,616 (19.1%) | 133 (17.7%) | 476 (14.3%) | 4,273 (19.8%) | ||
| 70–74 | 5,635 (23.4%) | 157 (20.8%) | 602 (18.2%) | 5,190 (24.1%) | ||
| 75–79 | 5,634 (23.4%) | 171 (22.7%) | 685 (20.7%) | 5,120 (23.8%) | ||
| 80–84 | 4,191 (17.4%) | 130 (17.2%) | 604 (18.2%) | 3,717 (17.2%) | ||
| 85+ | 4,040 (16.7%) | 163 (21.6%) | 0.0099 | 947 (28.6%) | 3,256 (15.1%) | <0.0001 |
| Gender | ||||||
| Male | 11,443 (47.5%) | 273 (36.2%) | 1,025 (30.9%) | 10,691 (49.6%) | ||
| Female | 12,673 (52.5%) | 481 (63.8%) | <0.0001 | 2,289 (69.1%) | 10,865 (50.4%) | <0.0001 |
| Race: | ||||||
| Af-Am | 1,846 (7.6%) | 86 (11.4%) | 595 (17.9%) | 1,337 (6.2%) | ||
| All Other | 22,270 (92.4%) | 668 (88.6%) | 0.0002 | 2,719 (82.1%) | 20,219 (93.8%) | <0.0001 |
| Stage: | ||||||
| In situ | 1,568 (6.5%) | ** | 169 (5.1%) | 1,435 (6.7%) | ||
| Local | 7,075 (29.4%) | 189 (25.1%) | 834 (25.2%) | 6,430 (29.8%) | ||
| Regional | 8,806 (36.5%) | 252 (33.4%) | 1,166 (35.2%) | 7,892 (36.6%) | ||
| Distant | 3,140 (13.0%) | 129 (17.1%) | 369 (11.1%) | 2,900 (13.5%) | ||
| Unstaged | 3,302 (13.7%) | 141 (18.7%) | 742 (22.4%) | 2,701 (12.5%) | ||
| Unknown | 225 (0.9%) | ** | <0.0001 | 34 (1.0%) | 198 (0.9%) | <0.0001 |
| Total number of Cases | 24,116 | 754 | 3,314 | 21,556 | ||
**
In accordance with Centers for Medicare and Medicaid Services (CMS) rules to protect patient confidentiality, cells smaller than 11 are masked.
When the masked cell could be calculated by subtracting the other numbers from the total, another (randomly selected) cell was masked as well.