Variable NCDB Long Term Outcomes p-value2
Overall, N = 11,2691 MIS, N = 3,9901 MIS Converted to Open, N = 8451 Open, N = 6,4341
Age 64.00 (55.00, 72.00) 64.00 (55.00, 72.00) 65.00 (57.00, 73.00) 65.00 (55.00, 72.00) 0.011
Sex <0.001
Female 5,727 (51%) 2,046 (51%) 374 (44%) 3,307 (51%)
Male 5,542 (49%) 1,944 (49%) 471 (56%) 3,127 (49%)
Race <0.001
Black 1,330 (12%) 429 (11%) 78 (9.2%) 823 (13%)
Other 623 (5.5%) 246 (6.2%) 52 (6.2%) 325 (5.1%)
White 9,316 (83%) 3,315 (83%) 715 (85%) 5,286 (82%)
Insurance Status <0.001
Medicaid 610 (5.4%) 199 (5.0%) 45 (5.3%) 366 (5.7%)
Medicare 5,346 (47%) 1,858 (47%) 436 (52%) 3,052 (47%)
Not Insured 256 (2.3%) 68 (1.7%) 10 (1.2%) 178 (2.8%)
Private Insurance/Managed Care/Goverment 4,946 (44%) 1,832 (46%) 346 (41%) 2,768 (43%)
Unknown 111 (1.0%) 33 (0.8%) 8 (0.9%) 70 (1.1%)
Region <0.001
Midwest 2,726 (24%) 900 (23%) 220 (26%) 1,606 (25%)
NorthEast 2,652 (24%) 1,055 (26%) 218 (26%) 1,379 (21%)
South 3,832 (34%) 1,282 (32%) 261 (31%) 2,289 (36%)
Unknown 600 (5.3%) 239 (6.0%) 29 (3.4%) 332 (5.2%)
West 1,459 (13%) 514 (13%) 117 (14%) 828 (13%)
Income <0.001
< $38,000 1,691 (15%) 564 (14%) 106 (13%) 1,021 (16%)
>=$63,000 4,219 (38%) 1,586 (40%) 295 (35%) 2,338 (36%)
$38,000-$47,999 2,410 (21%) 810 (20%) 195 (23%) 1,405 (22%)
$48,000-$62,999 2,929 (26%) 1,024 (26%) 247 (29%) 1,658 (26%)
Unknown 20 6 2 12
No High School Degree 0.003
<7.0% 3,235 (29%) 1,197 (30%) 229 (27%) 1,809 (28%)
>=21.0% 1,606 (14%) 535 (13%) 118 (14%) 953 (15%)
13.0-20.9% 2,698 (24%) 889 (22%) 201 (24%) 1,608 (25%)
7.0-12.9% 3,716 (33%) 1,364 (34%) 295 (35%) 2,057 (32%)
Unknown 14 5 2 7
Population 0.34
Metro 9,391 (83%) 3,347 (84%) 700 (83%) 5,344 (83%)
Rural 196 (1.7%) 64 (1.6%) 10 (1.2%) 122 (1.9%)
Unknown 290 (2.6%) 106 (2.7%) 28 (3.3%) 156 (2.4%)
Urban 1,392 (12%) 473 (12%) 107 (13%) 812 (13%)
Charlson-Deyo Disability Score 0.003
>=3 389 (3.5%) 129 (3.2%) 39 (4.6%) 221 (3.4%)
0 7,239 (64%) 2,628 (66%) 492 (58%) 4,119 (64%)
1 2,920 (26%) 1,000 (25%) 248 (29%) 1,672 (26%)
2 721 (6.4%) 233 (5.8%) 66 (7.8%) 422 (6.6%)
TNM Clinical T <0.001
c1 2,360 (21%) 1,043 (26%) 156 (18%) 1,161 (18%)
c2 3,656 (32%) 1,310 (33%) 276 (33%) 2,070 (32%)
c3 2,065 (18%) 591 (15%) 185 (22%) 1,289 (20%)
c4 301 (2.7%) 53 (1.3%) 18 (2.1%) 230 (3.6%)
pIS 208 (1.8%) 76 (1.9%) 12 (1.4%) 120 (1.9%)
Unknown 2,679 (24%) 917 (23%) 198 (23%) 1,564 (24%)
TNM Clinical N <0.001
c0 8,452 (75%) 3,167 (79%) 654 (77%) 4,631 (72%)
c1 1,100 (9.8%) 288 (7.2%) 76 (9.0%) 736 (11%)
Unknown 1,717 (15%) 535 (13%) 115 (14%) 1,067 (17%)
GRADE <0.001
Moderately differentiated, moderately well differentiated, intermediate differentiation 3,550 (32%) 1,138 (29%) 290 (34%) 2,122 (33%)
Poorly differentiated 1,751 (16%) 490 (12%) 155 (18%) 1,106 (17%)
Undifferentiated, anaplastic 159 (1.4%) 46 (1.2%) 19 (2.2%) 94 (1.5%)
Unknown 1,618 (14%) 531 (13%) 102 (12%) 985 (15%)
Well differentiated, differentiated, NOS 4,191 (37%) 1,785 (45%) 279 (33%) 2,127 (33%)
Median Survival 26.48 (13.24, 45.11) 27.83 (15.46, 44.49) 23.99 (11.76, 41.97) 25.92 (12.29, 45.83) <0.001
Unknown 1,911 839 167 905
Vital Status <0.001
Alive 5,787 (51%) 2,296 (58%) 386 (46%) 3,105 (48%)
Dead 3,571 (32%) 855 (21%) 292 (35%) 2,424 (38%)
Unknown 1,911 (17%) 839 (21%) 167 (20%) 905 (14%)
SurgicalMargins
R0 9,666 (86%) 3,592 (90%) 710 (84%) 5,364 (83%)
R1 875 (7.8%) 223 (5.6%) 86 (10%) 566 (8.8%)
R2 62 (0.6%) 7 (0.2%) 3 (0.4%) 52 (0.8%)
Unknown 666 (5.9%) 168 (4.2%) 46 (5.4%) 452 (7.0%)

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

2 Statistical tests performed: Kruskal-Wallis test; chi-square test of independence