Table 2. Risk of bias assessment—Modified Newcastle-Ottawa Scale [10].

Study ID, Year	Selection			Outcome		NOS
	Did the sample represent the whole cases of interest?	Was the diagnosis correctly made	Was the other important diagnosis excluded?	Were all the important data cited in the report	Was the outcome correctly ascertained
Guang Chen [16], 2020	-	+	+	+	+	4/5
Yong Gao [18], 2020	-	+	+	+	-	3/5
Zhongliang Wang [19], 2020	-	+	+	-	-	2/5
Chuan Qin [20], 2020	+	+	+	+	+	5/5
Chen Lei [22], 2020	-	+	+	+	+	4/5
Ruirui Wang [23], 2020	+	+	+	+	+	5/5
Zhe Zhu [24], 2020	+	+	+	+	+	5/5
Xiaohua Chen [25], 2020	-	+	+	+	-	3/5
Ming Ding [26], 2020	-	+	+	+	+	4/5
Tao Chen [27], 2020	+	-	+	+	+	4/5
Lang Wang [28], 2020	+	-	+	+	+	4/5
Fei Zhou [29], 2020	+	+	+	+	+	5/5
Haiying Sun [30], 2020	+	+	+	-	-	3/5
Junli Fan [31], 2020	-	-	+	+	+	3/5
Chen LD, 2020 [46]	+	+	+	+	+	5/5
Chen R, 2020 [43]	+	+	+	+	+	5/5
Chi Y, 2020 [79]	-	+	+	+	+	4/5
Guirao JJ, 2020 [33]	-	+	+	-	+	3/5
Hu ZJ, 2020 [80]	-	+	+	+	-	3/5
Huang Z, 2020 [44]	-	+	+	+	-	3/5
Li X, 2020 [47]	+	+	+	+	+	5/5
Liu D, 2020 [81]	+	+	+	+	-	4/5
Ozsurekci Y, 2020 [34]	-	+	+	+	+	4/5
Xu X, 2020 [48]	+	+	+	+	+	5/5
Zeng YL, 2020 [45]	-	+	+	-	-	2/5
Zeng Z, 2020 [49]	+	+	+	+	+	5/5
Zhao C, 2020 [82]	+	+	+	+	-	4/5
Zou L, 2020 [83]	+	+	+	+	-	4/5
Myhre PL, 2020 [13]	-	+	+	+	+	4/5
Laguna-Goya R, 2020 [15]	+	+	+	+	+	5/5
Chen F, 2020 [36]	+	-	+	+	+	4/5
Chen H, 2020 [37]	+	+	+	+	+	5/5
Gadotti AC, 2020 [14]	-	+	+	+	-	3/5
Ke C, 2020 [35]	-	-	+	+	+	3/5
Li C, 2020 [38]	+	+	+	-	+	4/5
Luo M, 2020 [39]	+	-	+	+	+	4/5
Mandel M, 2020 [32]	-	+	+	-	+	3/5
Wang ZH, 2020 [40]	-	+	+	+	-	3/5
Zhang L, 2020 [42]	-	+	+	+	+	4/5
Zhang B, 2020 [41]	-	+	+	+	-	3/5

NOS = Newcastle-Ottawa Scale