Table 1

Admission data and outcome

Admission data	Outcome (Atlanta)	Number	Mean	SD	p Value1-150
Age (years)	Mild	126	50.8	17.7	<0.001
	Severe	60	61.7	17.3
Serum amylase (IU/l)	Mild	126	2107	2111	0.065
	Severe	60	2807	2508
APACHE II score	Mild	126	4	3	<0.001
	Severe	60	11	4
Duration of pain (hours)	Mild1-151	110	35	44	0.400
	Severe	60	28	48

↵1-150 Two tailed t test.
↵1-151 Data missing from 16 patients.