Li ZF, Liu MJ. Int J Gen Med. 2021;14:6839–6845. The authors have advised after the paper was published, professional statistics teachers were invited to check the table data and found that some data in the tables were not accurate, so data re-proofreading and verification were carried out. The unskilled statistical methods and a small part of inaccurate data have no impact on the overall results of the study. Tables 1 and 2 on page 6842 are shown in Download Article. Tables 3 and 4 on page 6843 are shown in Download Article. Read the original article