Geneva, Feb. 13 -- International Clinical Trials Registry received information related to the study (ChiCTR2600118432) titled 'A Study on the Effect of Chronic Pain Duration on Cognitive Impairment' on Feb. 5.

Study Type: Observational study

Study Design: Cohort study

Primary Sponsor: Renji Hospital, Shanghai Jiao Tong University School of Medicine

Condition: Herpes Zoster, Postherpetic Neuralgia

Intervention: Cross-sectional study group (pain duration 12 months):None Cross-sectional study group (healthy control):None

Recruitment Status: Not Recruiting

Phase: 0

Date of First Enrollment: 2026-02-05

Target Sample Size: Cross-sectional study group (pain duration < 1 month):45;Cross-sectional study group (pain duration 1-3 mon...