Table 2 Cox proportional hazard model of overall survival predictors

Age

1.41 (1.02–2.45)

0.029

1.34 (0.94–1.77)

0.056

Sex (M vs F)

1.88 (1.06–3.34)

0.048

1.48 (0.26–1.80)

0.479

EGFR expression (strong vs negative/weak/moderate)

1.55 (1.30.-2.33)

0.002

1.38 (1.201–2.744)

0.004

Chemotherapy Regimen (MVAC vs GemCis)

1.72 (0.84–3.75)

0.159

pT stage (T2 or less vs greater than T2)

2.88 (1.92–3.99)

0.003

3.28 (1.54–4.62)

< 0.001

pN stage (N0 vs greater than N0)

2.31 (1.88–2.93)

< 0.001

1.81 (1.23–2.74)

< 0.001