Table 3.

Postoperative complications of the three periods.

	Exploration period (n = 72)	Adjustment period (n = 79)	Stable period (n = 134)	P
Anastomosis leakage	5(6.9)	7(8.9)	3(2.2)	0.086
Hoarseness	8(11.1)	0(0)	2(1.5)	<0.001 a
Wound infection	3(4.2)	1(1.3)	6(4.5)	0.441
Pleural effusion	3(4.2)	3(3.8)	14(10.4)	0.102
Pneumonia	2(2.8)	3(3.8)	5(3.7)	0.926
Chylothorax	2(2.8)	0(0)	3(2.2)	0.362
Arrhythmia	0(0)	1(1.3)	3(2.2)	0.425
Pneumothorax	4(5.6)	0(0)	3(2.2)	0.086
ICU stay	4(5.6)	2(2.5)	4(3.0)	0.543
Secondary surgery	1(1.4)	0(0)	2(1.5)	0.558
Death	0(0)	1(1.3)	1(1.1)	0.646

Data are expressed as number (percentage).

^aStatistically significant.