Table S1. Quality assessment details using JBI Critical Appraisal Checklist [The Joanna Briggs Institute (JBI) Critical Appraisal Checklist for analytical cross-sectional study (last amended in 2017)].
| Study (No. reference)† | Were the criteria for inclusion in the sample clearly defined? | Were the study subjects and the setting described in detail? | Was the exposure measured in a valid and reliable way? | Were objective, standard criteria used for measurement of the condition? | Were confounding factors identified? | Were strategies to deal with confounding factors stated? | Were the outcomes measured in a valid and reliable way? | Was appropriate statistical analysis used? | Overall appraisal |
|---|---|---|---|---|---|---|---|---|---|
| Zhou SC et al. (14) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Include |
| Wu J et al. (38) | Yes | Yes | Yes | Yes | NA | NA | Yes | Yes | Include |
| Shi BB et al. (39) | Yes | Yes | Yes | Yes | No | No | Yes | Yes | Include |
| Dai H et al. (8) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Include |
| Damiano C et al. (40) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Include |
| Han R et al. (11) | Yes | Yes | Yes | Yes | No | No | Yes | Yes | Include |
| Zhao W et al. (9) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Include |
| Lu XF et al. (41) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Include |
| Zhu ZX et al. (42) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Include |
| Cheng SP et al. (13) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Include |
| Li M et al. (43) | Yes | Yes | Yes | Yes | No | No | Yes | Yes | Include |
| Lei PG et al. (15) | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Include |
| Jie BK et al. (44) | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Include |
| Zhao SQ et al. (45) | Yes | Yes | Yes | Yes | No | No | Yes | Yes | Include |
| Pascal L. et al. (46) | Yes | Yes | Yes | Yes | No | No | Yes | Yes | Include |
| Meng C et al. (47) | Yes | Yes | Yes | Yes | No | No | Yes | Yes | Include |
| Li XH et al. (48) | Yes | Yes | Yes | Yes | No | No | Yes | Yes | Include |
| Li L et al. (49) | Yes | Yes | Yes | Yes | No | No | Yes | Yes | Include |
| Zhang Y et al. (50) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Include |
| Xiao HJ et al. (51) | Yes | Yes | Yes | Yes | No | No | Yes | Yes | Include |
| Hu R et al. (52) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Include |
| Bai HX. et al. (53) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Include |
†, first author and corresponding number of the reference were listed as study ID. The number of reference is in consistent with that in the formal article. NA, not applicable.