Group

Lung infections

Injury to the recurrent laryngeal nerve

Anastomotic

fistula

Infection of

the incision

Total

incidence

Observation group

Control group

χ²

P

1 (2.50)

3 (7.50)

0 (0.00)

2 (5.00)

0 (2.50)

3 (7.50)

3 (0.00)

6 (2.50)

4 (5.00)

14 (22.50)

6.313

0.012