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Table 2 Newcastle-Ottawa scores of all included articles (n=16)

From: Postoperative decrease of albumin (ΔAlb) as early predictor of complications after gastrointestinal surgery: a systematic review

Authors Year Selection Comparability Outcome Total
Mantziari et al. 2015 4 2 2 8
Hübner et al. 2016 4 2 2 8
Labgaa et al. 2017 4 2 2 8
Kumar et al. 2020 4 0 2 6
Müller et al. 2018 4 2 2 8
Galata et al. 2020 4 2 2 8
Fan et al. 1989 4 2 2 8
Labgaa et al. 2020 4 2 2 8
Liu et al. 2017 4 2 2 8
Ai et al. 2019 4 2 2 8
Giovannini et al. 2006 4 0 2 6
Labgaa et al. 2016 4 2 2 8
Hendifar et al. 2016 4 0 2 6
Ge et al. 2017 4 2 2 8
Wierdak et al. 2018 4 0 2 6
Wang et al. 2018 4 2 2 8