This study was approved by the Institutional Review Board of Yonsei University Health System, Seoul, Republic of Korea (No. 4-2022-0819). As it is a retrospective observational study, the requirement for obtaining informed consent from the patients was waived. This manuscript complies with the STROBE checklists applicable to observational studies. Adult patients who complained of zoster-associated pain at their first visit from January 2016 to August 2021 were enrolled. Patients with incomplete medical records or those who did not complete the painDETECT questionnaire were excluded.
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