Clinical significance of melatonin concentrations in predicting the severity of acute pancreatitis

Table 3 Relationship between melatonin concentration and patient scores

Group1		APACHEII score2				BISAP score3
	Total cases	High score cases	Incidence	χ2value	P value	High score cases	Incidence	χ2value	P value
Low concentrations	21	8	8/21	0.821	> 0.05	9	9/21	5.422	0.02
High concentrations	34	9	9/34			5	5/34

¹≤ 28.74 ng/L is defined as a low concentration, > 28.74 ng/L is defined as a high concentration;

²APACHEII score ≥ 10 is defined as a high score, the two groups, P > 0.05;

³BISAP ≥ 3 is defined as a high score. BISAP ≥ 3, low melatonin concentration compared to high concentration, P = 0.02. APACHEII: Acute physiology and chronic health evaluation II; BISAP: Bedside index for severity in acute pancreatitis.