Footnotes

• Contributors YW and HY designed the study. JX and LS performed literature search. HY and JX performed data extraction. JX, HY, LS and GD performed statistical analyses. HY, JX and YW wrote and reviewed the manuscript. All the authors approved the final version of the manuscript.

• Funding This study was supported by grants from the National Natural Science Foundation of China (grant number 81973105), Key Scientific Research Project of Henan Institution of Higher Education (grant number 21A330008), the National Science and Technology Major Projects of China (grant number 2018ZX10301407) and Joint Construction Project of Henan Medical Science and Technology Research Plan (grant number LHGJ20190679).

• Disclaimer The funders have no role in the data collection, data analysis, preparation of manuscript and decision to submission.

• Competing interests None declared.

• Provenance and peer review Not commissioned; internally peer reviewed.

• Supplemental material This content has been supplied by the author(s). It has not been vetted by BMJ Publishing Group Limited (BMJ) and may not have been peer-reviewed. Any opinions or recommendations discussed are solely those of the author(s) and are not endorsed by BMJ. BMJ disclaims all liability and responsibility arising from any reliance placed on the content. Where the content includes any translated material, BMJ does not warrant the accuracy and reliability of the translations (including but not limited to local regulations, clinical guidelines, terminology, drug names and drug dosages), and is not responsible for any error and/or omissions arising from translation and adaptation or otherwise.