Table 6. Multivariate analysis of the relationship between patient's basic information and the effect of immunotherapy.

Variables	OR	95% CI	P value
Age	1.15	0.97–1.35	0.101
Smoking history	7.23	0.3–173.78	0.223
Drinking history	0.56	0.04–8.21	0.669
Tumour location	0.44	0.08–2.51	0.359
Interval from completion of NACI to surgery (weeks)	0.93	0.86–1.01	0.089
Immunotherapy regimen	4.35	0.69–27.61	0.118
NACI course	0.78	0.31–1.97	0.599
Clinical stage	0.19	0.01–2.34	0.194

P value is calculated by Binary logistic regression curve. All variables were included.