Table 1.

Patient demographics, n = 89

Variables	Value
Gender, n (%)
Male	51 (57.3)
Female	38 (42.7)
Age in yr, mean ± SD	54.4 ± 10.1
BMI in kg/m2, mean ± SD	24.9 ± 4.6
ASA score, n (%)
ASA I	13 (14.6)
ASA II	56 (62.9)
ASA III	20 (22.5)
cT stage
cT3	54 (60.7)
cT4	35 (39.3)
cN stage
N1	50 (56.2)
N2	39 (43.8)
Neoadjuvant chemoradiotherapy
No	26 (29.2)
Short-course radiotherapy	3 (3.4)
Long-course radiotherapy + chemotherapy	60 (67.4)

ASA: American Society of Anesthesiologists; BMI: Body mass index; SD: Standard deviation.