Imaging findings of irritable bowel syndrome patients, and the diagnostic value of irritable bowel syndrome: A systematic review

Table 2 Risk of bias assessment of the included studies

Ref.	Selection bias	Comparability bias	Outcome	Total score
Klinge et al[19], 2022	3	1	3	7
Lam et al[20], 2016	4	2	3	9
Pritchard et al[21], 2014	3	1	3	7
Di Palma et al[28], 2011	3	2	2	7
Nilsson et al[34], 2015	3	2	2	7
Grinsvall et al[38], 2021	4	2	3	9
Blankstein et al[39], 2010	3	2	3	8
Chua et al[40], 2017	3	2	3	8
Jiang et al[42], 2013	3	2	2	7
Mao et al[43], 2020	3	2	3	8
Chen et al[44], 2011	3	2	2	7
Zhao et al[45], 2018	3	2	3	8
Icenhour et al[50], 2017	3	2	3	8
Guleria et al[51], 2017	3	2	2	7