SLIDE 7 Pathologic Nodal Staging Quality Gaps
0.00 0.25 0.50 0.75 1.00 2319 1246 690 405 179 36 pn_status = PNX 6795 3359 1675 811 376 94 pn_status = PN1 24200 14854 8685 4801 2268 574 pn_status = PN0 Number at risk 2 4 6 8 10 12 Time(years) PN0 PN1 PNX
Overall Survival (no wedge)
p<.001
0.00 0.25 0.50 0.75 1.00 4638 3435 2626 2152 1241 285 MLN examined 7711 5420 4071 3210 1954 486 No MLN examined Number at risk 2 4 6 8 10 12 Time(years) No MLN examined MLN examined
Mediastinal Lymph Node Examination and Survival
SEER 1998 - 2002 Osarogiagbon and Yu. J Thorac Oncol 2012;7:1798- 1806
pNX survival mirrors pN1, not pN0 SEER 1998 - 2002
Osarogiagbon and Yu. Ann Thorac Surg 2013;96:1178-89.
.4 .6 .8 1 1.2 2 4 6 8 10 12 14 16 18 20 22 24 26 Number of LN examined 95%CI Hazard ratio Smoothed line
Lung Cancer Specific Mortality
Hazard Ratio for Death in pN0 in relation to number of lymph nodes examined
‘All animals are equal, but some animals are more equal than others’’
- George Orwell, ‘Animal Farm’.
Osarogiagbon, Ogbata, Yu. Ann Thorac Surg 2014;97:385-93.
14% survival difference!