highly significantP =0.0033
A highly significant relationship between EGFR status and PFS was observed (P =0.0033) (Figure 2b).
A highly significant relationship between EGFR status and PFS was observed (P =0.0033) (Figure 2b).
Moreover, post-operative residual tumour showed an independent role in predicting chemotherapy response (P = 0.0007) and EGFR status showed a borderline significance (P = 0.052) in the multivariate analysis.