Table 5. Perioperative characteristics.

Characteristic	Zhuang’s group (n=58)	Modified Zhuang’s group (n=66)	P value*
Duration of surgery (min), median (IQR)	170 (165–190)	180 (180–215)	0.010
Amount of bleeding (mL), median (IQR)	50.0 (20.0–50.0)	20.0 (13.5–48.5)	0.001
Amount of drainage (mL), mean ± SD	21.2±12.6	15.9±1.2	0.011†
Hospital duration after operation (days), median (IQR)	6 (5–6)	5 (5–6)	0.013
Whole therapy duration (months), median (IQR)	5.0 (5.0–5.1)	2.5 (2.4–2.6)	<0.001

*, independent Samples Mann-Whitney U test. ^†, student’s t test.