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. 2022 Feb 4;17(2):e0262534. doi: 10.1371/journal.pone.0262534

Table 3. Risk of bias.

Study Item 2 Item 3 Item 4 Item 5 Item 6 Item 7 Item 8 Item 9 Item 10 Item 11 Total
Sharma et al. 2015 [61] Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic 7/10
Cronin et al. 2019 [45] Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic 6/10
Klare et al. 2015 [31] Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic 6/10
Elsenbruch et al. 2005 [60] Inline graphic Inline graphic Inline graphic Inline graphic Inline graphic 5/10
Ploeger et al. 2012 [46] Inline graphic Inline graphic Inline graphic Inline graphic 4/10