Geneva, Jan. 12 -- International Clinical Trials Registry received information related to the study (ChiCTR2500114824) titled 'he Association of Frequency and Severity ofChronic Obstructive Pulmonary Hospitalization Events with the Risk of Future Exacerbations' on Dec. 17, 2025.

Study Type: Observational study

Study Design: Cohort study

Primary Sponsor: The Third Affiliated Hosptial of ChongQing Medical University

Condition: COPD

Intervention: Frequent hospitalization group (experimental group) :None

Recruitment Status: Not Recruiting

Phase: N/A

Date of First Enrollment: 2022-01-01

Target Sample Size: Frequent hospitalization group (experimental group) :60;Versus infrequent rehospitalization group (control group):60;

Coun...