Table 3:

Cox Proportional Hazards Model, Disease Free Survival with IPTW Patients with Intermediate Risk Disease

	Univariable Analysis			Multivariable Analysis
Risk Factor	HR	95% CI	p-value	HR	95% CI	p-value
Post-op PET vs CT	0.58	0.35 – 0.95	0.032	0.46	0.26 – 0.84	0.011
Age (per year)	1.02	1.00 – 1.04	0.035	1.03	1.00 – 1.05	0.020
pT3–4 vs. T1–2	1.30	0.78 – 2.17	0.31	1.34	0.75 – 2.39	0.32
pN2–3 vs. N0–1	1.86	1.08 – 3.21	0.026	1.05	0.35 – 3.14	0.94
Thickness (per mm)	0.99	0.96 – 1.02	0.63	0.97	0.94 – 1.01	0.20
Nodes Pos (per node)	1.30	1.13 – 1.50	0.00037	1.43	0.93 – 2.19	0.10
PNI	1.52	0.92 – 2.52	0.10	1.31	0.77 – 2.23	0.32
LVI	1.21	0.64 – 2.28	0.55	1.59	0.77 – 2.23	0.32
Close Margins vs. Negative Margins	1.50	0.86 – 2.61	0.15	1.62	0.92 – 2.85	0.092
Time to sim (per day)	1.01	0.99 – 1.02	0.45	1.01	0.99 – 1.02	0.54