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. 2023 Apr 14;14:1130217. doi: 10.3389/fimmu.2023.1130217

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Copyright © 2023 Yang, Ren and Wang

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Flow chart of population included in our final analysis, NHANES 2007-2016. (A) Flow chart of HPV infection cohort. (B) Flow chart of HPV immunization cohort. HPV, Human papillomavirus; PCR, polymerase chain reaction; RA, rheumatoid arthritis.