Relationship between body mass index and short-term postoperative prognosis in patients undergoing colorectal cancer surgery

Table 2 Quality Assessment Based on New Castle–Ottawa Scale

Ref.	Case selection (/4)	Comparability (/2)	Outcome indicators (/3)	Total score (/9)
Hannan et al[10], 2022	4	2	3	9
Lagares-Garcia et al[11], 2016	4	2	2	8
Akiyoshi et al[12], 2011	4	2	2	8
Merkow et al[13], 2009	4	2	3	9
Choi et al[14], 2017	4	2	2	8
Zhang et al[15], 2021	4	2	2	8
Yamashita et al[16], 2021	4	2	3	9
Bège et al[18], 2009	4	2	2	8
Hede et al[19], 2015	4	2	3	9
Makino et al[21], 2014	3	2	2	7
Bamboat et al[22], 2012	3	2	2	7
Miyamoto et al[23], 2014	2	2	2	6
Bayraktar et al[24], 2018	2	2	2	6
Poulsen et al[25], 2012	3	2	2	7
Bell et al[26], 2018	2	2	2	6
Peacock et al[27], 2020	4	2	2	8