Table 4 Factors associated with pathological complete response (PCR) by univariate and multivariate logistic regression analysis

Presence of COPD

2.974

1.063–8.318

0.038

3.020

1.042–8.757

0.042

Age(> 65 vs. ≤ 65)

1.333

0.487 -3.654

0.576

Sex(male vs. female)

1.556

0.297 -8.160

0.601

SI, pack-years (> 20 vs. ≤ 20)

1.571

0.549 -4.501

0.400

1.328

0.440–4.002

0.615

ECOG PS score (1 vs. 0)

1.500

0.538–4.183

0.438

Histology(Non-SCC vs. SCC)

0.754

0.183–3.102

0.696

0.897

0.195–4.135

0.889

cTNM Stage^a

1.339

0.465 -3.854

0.588

1.445

0.441–7.731

0.543

Neoadjuvant cycle(> 2 vs. ≤ 2)

1.230

0.450–3.362

0.686

1.222

0.405–3.689

0.722