Endoscopic retrograde cholangiopancreatography in cirrhosis - a systematic review and meta-analysis focused on adverse events

Table 1 Description of 15 studies used in the final analysis

Ref.	Yr of publication	Country	Study type	Cohort/ Case-control	Yr	No. of patients
Navaneethan et al[5]	2017	United States	Retrospective	Case-control	2010	3228
Jagtap et al[20]	2017	India	Retrospective	Cohort	2014-2016	134
Adler et al[16]	2016	United States	Retrospective	Cohort	2003-2014	328
Inamdar et al[13]	2016	United States	Retrospective	Case-control	2009	1930
Gill et al[14]	2016	Pakistan	Retrospective	Case-control	2008-2014	100
Churrango et al[24]	2016	United States	Retrospective	Cohort	2008-2015	194
Leal et al[19]	2015	Spain	Retrospective	Case-control	2002-2014	158
Zhang et al[2]	2015	China	Retrospective	Cohort	2000-2014	77
Li et al[17]	2014	China	Retrospective	Cohort	2000-2008	46
Ma et al[22]	2013	China	Retrospective	Cohort	2002-2013	41
Artifon et al[21]	2011	Brazil	Prospective	Case-control	Not specified	105
Park et al[18]	2004	South Korea	Prospective/Retrospective	Case-control	1998-2003	41
Prat et al[25]	1996	France	Retrospective	Cohort	1988-1993	52
Freeman et al[23]	1995	United States	Prospective	Case-control	Not specified	64
Sugiyama et al[15]	1993	Japan	Prospective	Cohort	Not specified	7