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. 2023 Jun 14;109(7):2070–2081. doi: 10.1097/JS9.0000000000000393

Table 3.

NOS quality assessment of the included studies.

Newcastle–Ottawa Scale
References Selection Comparability Outcome Total
Hu Hei 15 ☆☆☆ ☆☆☆ 7
Yang Fei 16 ☆☆☆ ☆☆ ☆☆ 7
Qiuping Xie 17 ☆☆☆ ☆☆ ☆☆☆ 8
David 2007 18 ☆☆☆ ☆☆ 6
Bin Lv 201619 ☆☆☆ ☆☆ ☆☆☆ 8
Dionigi 20 ☆☆☆ ☆☆ ☆☆☆ 8
Hye Yoon Lee 21 ☆☆☆ ☆☆ ☆☆☆ 8
Li J 22 ☆☆☆ ☆☆ ☆☆☆ 8