Review Article
The Effect of Bariatric Surgery on Circulating Levels of Lipoprotein (a): A Meta-analysis
Table 2
Quality of bias assessment of the included studies according to the Newcastle-Ottawa scale.
| | Study | Selection | Comparability† | Exposure | | Case definition | Representativeness of the cases | Selection of controls | Definition of controls | Comparability of cases and controls | Ascertainment of exposure | Same method of ascertainment | Nonresponse rate |
| | Berk et al., 2017 | — | — | — | | | | | — | | Després et al., 2020 | — | — | — | — | — | | — | — | | Ram et al., 2007 | — | — | — | — | — | | — | — | | Gómez-Martin et al., 2018 | | — | — | — | | | | | | Ho et al., 2021 | — | — | — | — | — | | | — | | Carmona-Maurici et al., 2020 | | — | — | | | | | — | | Kruschitz et al., 2020 | — | — | — | — | | | | — | | Lin et al., 2018 | — | — | — | — | | | | — | | Paredes et al., 2020 | — | — | — | | | | | — | | To et al., 2012 | — | — | — | — | — | | — | — | | Williams et al., 2007 | — | — | — | — | — | | — | — | | Woodard et al., 2010 | — | | — | — | — | | — | — | | Morton et al., 2009 | | — | — | — | — | | | — |
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†Only for comparability, a maximum of two stars can be given.
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