Systematic Reviews
Copyright ©The Author(s) 2024.
World J Gastrointest Oncol. Feb 15, 2024; 16(2): 514-526
Published online Feb 15, 2024. doi: 10.4251/wjgo.v16.i2.514
Table 2 Newcastle-Ottawa scale scores for the included studies
Representativeness of the exposed cohort
Selection of the non exposed cohort
Ascertainment of exposure
Outcome of interest not present at the start of the study
Assessment of outcome
Length of follow-up
Adequacy of follow-up
Hashimoto et al[21] ******6/8
Hirahara et al[31]********8/8
Hirahara et al[22]******6/8
Ishiguro et al[23]*******7/8
Kudou et al[12] ********8/8
Lee et al[13]********8/8
Lin et al[15]********8/8
Liu et al[24]*******7/8
Murakami et al[1]*******7/8
Saito et al[25]*******7/8
Shen et al[26] ********8/8
Takechi et al[17] ******6/8
Toyokawa et al[27] ********8/8
Toyokawa et al[28] ********8/8
Wu et al[29] *******7/8
Xu et al[30] ********8/8