Variables NCDB Long Term Outcomes MIS Converted to open, N = 8451 p-value2
Overall, N = 4,8351 MIS, N = 3,9901
Age 64.00 (55.00, 73.00) 64.00 (55.00, 72.00) 65.00 (57.00, 73.00) 0.003
Sex <0.001
Female 2,420 (50%) 2,046 (51%) 374 (44%)
Male 2,415 (50%) 1,944 (49%) 471 (56%)
Race 0.42
Black 507 (10%) 429 (11%) 78 (9.2%)
Other 298 (6.2%) 246 (6.2%) 52 (6.2%)
White 4,030 (83%) 3,315 (83%) 715 (85%)
Insurance Status 0.061
Medicaid 244 (5.0%) 199 (5.0%) 45 (5.3%)
Medicare 2,294 (47%) 1,858 (47%) 436 (52%)
Not Insured 78 (1.6%) 68 (1.7%) 10 (1.2%)
Private Insurance/Managed Care/Goverment 2,178 (45%) 1,832 (46%) 346 (41%)
Unknown 41 (0.8%) 33 (0.8%) 8 (0.9%)
Region 0.26
Midwest 1,120 (25%) 900 (24%) 220 (27%)
NorthEast 1,273 (28%) 1,055 (28%) 218 (27%)
South 1,543 (34%) 1,282 (34%) 261 (32%)
West 631 (14%) 514 (14%) 117 (14%)
Unknown 268 239 29
Income 0.010
< $38,000 670 (14%) 564 (14%) 106 (13%)
>=$63,000 1,881 (39%) 1,586 (40%) 295 (35%)
$38,000-$47,999 1,005 (21%) 810 (20%) 195 (23%)
$48,000-$62,999 1,271 (26%) 1,024 (26%) 247 (29%)
Unknown 8 6 2
No High School Degree 0.40
<7.0% 1,426 (30%) 1,197 (30%) 229 (27%)
>=21.0% 653 (14%) 535 (13%) 118 (14%)
13.0-20.9% 1,090 (23%) 889 (22%) 201 (24%)
7.0-12.9% 1,659 (34%) 1,364 (34%) 295 (35%)
Unknown 7 5 2
Population 0.14
Metro 4,047 (86%) 3,347 (86%) 700 (86%)
Rural 35 (0.7%) 33 (0.8%) 2 (0.2%)
Urban 619 (13%) 504 (13%) 115 (14%)
Unknown 134 106 28
Charlson-Deyo Disability Score <0.001
>=3 168 (3.5%) 129 (3.2%) 39 (4.6%)
0 3,120 (65%) 2,628 (66%) 492 (58%)
1 1,248 (26%) 1,000 (25%) 248 (29%)
2 299 (6.2%) 233 (5.8%) 66 (7.8%)
Staging <0.001
Stage 0 186 (4.1%) 158 (4.2%) 28 (3.6%)
Stage I 2,186 (48%) 1,897 (50%) 289 (37%)
Stage II 2,143 (47%) 1,693 (45%) 450 (57%)
Stage III 48 (1.1%) 29 (0.8%) 19 (2.4%)
Unknown 272 213 59
Tumor Grade <0.001
Moderately differentiated 1,428 (30%) 1,138 (29%) 290 (34%)
Poorly differentiated 645 (13%) 490 (12%) 155 (18%)
Undifferentiated 65 (1.3%) 46 (1.2%) 19 (2.2%)
Unknown 633 (13%) 531 (13%) 102 (12%)
Well differentiated 2,064 (43%) 1,785 (45%) 279 (33%)
Median Survival 27.33 (14.72, 44.12) 27.83 (15.46, 44.49) 23.99 (11.76, 41.97) <0.001
Unknown 1,006 839 167
Vital Status <0.001
Alive 2,682 (70%) 2,296 (73%) 386 (57%)
Dead 1,147 (30%) 855 (27%) 292 (43%)
Unknown 1,006 839 167

1 Statistics presented: Median (IQR); n (%)

2 Statistical tests performed: Wilcoxon rank-sum test; chi-square test of independence