Meta-analysis reveals an association between acute pancreatitis and the risk of pancreatic cancer

Table 2 Quality assessment of included studies in this meta-analysis

Ref.		Representativeness of the exposed cohort	Selection of the non-exposed cohort	Ascertainment of exposure	Outcome of interest was not present at start of study	Based on the design or analysis	Assessment of outcome	Follow-up long enough for outcomes to occur	Adequacy of follow-up of cohorts	OverallScore
Cohort studies	Rijkers et al[20], 2017	1	0	1	1	2	1	1	1	8
	Kirkegård et al[21], 2018	1	0	1	1	2	1	1	1	8
	Pang et al[22], 2018	1	1	1	1	2	1	1	1	9
	Munigala et al[23], 2014	1	0	1	1	2	1	1	1	8
	Chung et al[24], 2012	1	1	1	1	2	1	1	1	9
	Ekbom et al[25], 1994	1	0	1	1	2	1	1	1	8
	Sadr-Azodi et al[10], 2018	1	1	1	1	2	1	1	1	9
	Goldacre et al[26], 2008	1	1	1	1	2	0	1	1	8
	Karlson et al[14], 1997	1	0	1	1	2	1	1	1	8
Case-control studies	Bansal et al[27], 1995	1	1	1	1	2	1	1	0	8
	Duell et al[13], 2006	0	1	1	1	2	0	1	0	6