Role of colectomy in preventing recurrent primary sclerosing cholangitis in liver transplant recipients

Table 1 Methodological index for non-randomized studies criteria for selected studies on recurrent primary sclerosing cholangitis after liver transplantation

		Study design				Data recording and data quality			Study assessment		MINORS score
Ref.	Year	Study aim	Consecutive patients	Data collection	Reported endpoints	Equivalent groups	Follow-up period	Loss tofollow-up	Outcome evaluation bias	Statistical methods
Cholongitas et al[21]	2008	2	2	1	1	0	2	0	1	2	11
Alabraba et al[20]	2009	2	2	1	1	0	2	0	2	2	12
Moncrief et al[24]	2010	1	2	1	1	0	2	0	1	2	10
Gelley et al[22]	2014	1	2	1	1	0	0	0	0	0	5
Ravikumar et al[25]	2015	2	2	1	2	0	2	0	2	2	13
Hildebrand et al[23]	2016	2	2	1	1	0	2	0	1	2	11

MINORS: Methodological index for non-randomized studies.