Impaired glucose tolerance in acute pancreatitis

Table 1 Mortality of acute pancreatitis in patients with pre-existing diabetes mellitus and those without diabetes mellitus

Ref.	Country	Diagnosis of DM	Prevalence of DM	Mortality of AP with DM	Mortality of AP without DM	Mortality of AP with DM compared to AP without DM
Graham et al[26], (2010)	United States	Two patients databases	Undescribed	Undescribed	Undescribed	Lower
Shen et al[27], (2012)	Taiwan	The Taiwan National Insurance Research Databese	Case-control study	3.5%	4.1%	Lower
Zhao et al[33], (2012)	China	History or HbA1c	12.6% (40/318)	15.0%	1.1%	Higher
Kikuta et al, (present study)	Japan	Questionnaire	12.8% (250/1954)	4.0%	1.7%	Higher

AP: Acute pancreatitis; DM: Diabetes mellitus.