Table 5. Cox proportional hazard model for staining ≥10% positivity.

Cox Hazard Ratio (OS)	Positivity ≥10%
Unadjusted	HR (CI 95%)	p-value
EGFR: ≥10%	0.94 (0.76-1.17)	0.576
Adjusted for Stage and Debulking
EGFR: ≥10%	0.95 (0.76-1.19)	0.655
Stage: Advanced (3&4)	3.32 (2.40-4.61)	6.40e-13
Debulking: Optimal	2.02 (1.47-2.78)	1.66e-5