Impact of different anastomosis methods on post-recurrence after intestinal resection for Crohn's disease: A meta-analysis

Table 3 Quality of the included studies based on the Newcastle-Ottawa scale

Ref.	Representativeness of the exposed cohort	Selection of the non-exposed cohort	Ascertainment of exposure	Demonstration that outcome of interest was not present at the start of the study	Comparability of cohorts based on the design or analysis	Assessment of outcome	Was follow-up long enough for outcomes to occur	Adequacy of follow-up of cohorts	Total scores
Shimada et al[15]	1	1	1	1	2	1	1	1	9
Tyrode et al[19]	1	1	1	0	2	1	1	1	8
Kelm et al[20]	1	1	1	1	1	0	1	1	8
Alibert et al[21]	1	1	1	1	1	1	1	0	7
Kono et al[22]	1	1	1	0	2	1	1	1	8