Abdominal compartment syndrome in patients with severe acute pancreatitis in early stage

Table 2 Comparison of clinical data on admission between two groups (mean ± SD)

Clinical data on admission	IAP≥12 mmHg (n = 44)	IAP < 12 mmHg (n = 30)	χ2 or t value	P value
Age (yr)	62.61 ± 11.05	63.57 ± 7.71	-0.41	0.684
Gender (male/female)	23/21	16/14	0.01	0.929
APACHE II score	16.18 ± 3.90	15.70 ± 4.25	0.50	0.616
Ranson score	3.70 ± 0.93	3.47 ± 0.94	1.08	0.285
CTSI	5.25 ± 2.27	5.63 ± 2.01	0.75	0.458

APACHE II score: Acute physiology and chronic health evaluation II score; CTSI: CT scan severity index.