Table 2.

The JBI Critical Appraisal Checklist for Studies Reporting Prevalence Data.

Studies	1. Was the sample frame appropriate to address the target population?	2. Were study participants sampled in an appropriate way?	3. Was the sample size adequate?	4.Were the study subjects and the setting described in detail?	5. Was the data analysis conducted with sufficient coverage of the identified sample?	6. Were valid methods used for the identification of the condition?	7.Was the condition measured in a standard, reliable way for all participants?	8. Was there appropriate statistical analysis?	9. Was the response rate adequate, and if not, was the low response rate managed appropriately?	Y%
Dai et al. (17)	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	88.9%
Liu et al. (18)	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	88.9%
Li et al. (19)	Yes	Yes	Not Clear	Yes	Yes	Yes	Yes	Yes	Yes	88.9%
Wang et al. (20)	Yes	Yes	Not Clear	Yes	Yes	Yes	Yes	Yes	Yes	88.9%
Tang and Ying (21)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	100%
Wang and Xu (22)	Yes	Yes	Not Clear	Yes	Yes	Yes	Yes	Yes	Yes	88.9%
Zhou et al. (8)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	100%
Xie et al. (9)	Yes	Yes	Not Clear	Yes	Yes	Yes	Yes	Yes	Yes	88.9%
Tang et al. (16)	Yes	Yes	Not Clear	Yes	Yes	Yes	Yes	Yes	Yes	88.9%
Dong et al. (10)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	100%
Liu et al. (3)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	100%

Y%, percentage of Yes items.