Table 1:

Patients characteristics

Parameter	With neoadjuvant	Without neoadjuvant	P-value
Sex (M/F)	11/9	12/8	0.21
Mean age (years)	60	62	0.29
Mean body mass index	17.9 ± 8.2	18.1 ± 3.8	0.69
Positive history of smoking	11	10	0.827
Positive history of COPD	1	1	1.000
Tumour location	1/3 middle: 12	1/3	0.77
	1/3 lower: 8	1/3
Technique of surgery	Transhiatal:10	Transhiatal:10	1.000
	Transthoracic:10	Transthoracic:10
Pathology (stage)
I	0	1	0.81
IIA	9	10
IIB	3	2
III	8	7