Value of color Doppler ultrasound in preoperative typing diagnosis of acute appendicitis

Table 5 Comparison of postoperative recovery and complications between two groups

Variable	Suppurative appendicitis (n = 142)	Simple appendicitis (n = 186)	Statistic	P value
First flatus (hour)	48.6 ± 12.8	28.3 ± 8.5	t = 15.82	< 0.001
Oral intake resumed (hour)	52.4 ± 14.2	32.6 ± 9.8	t = 13.45	< 0.001
Post-operative LOS (day)	5.8 ± 1.4	3.2 ± 0.9	t = 18.74	< 0.001
Overall morbidity	26 (18.3)	9 (4.8)	χ2 = 15.87	< 0.001
Wound infection	8 (5.6)	5 (2.7)
Intra-abdominal abscess	7 (4.9)	2 (1.1)
Ileus	6 (4.2)	2 (1.1)
Wound dehiscence	3 (2.1)	0 (0)
Pneumonia	2 (1.4)	0 (0)

Data was showed as n (%) or mean ± SD.