This paper is in the following e-collection/theme issue:

Longitudinal and Cohort Studies in Public Health (427) Infectious Diseases (non-STD/STI) (1738) Theme Issue: Novel Coronavirus (COVID-19) Outbreak Rapid Reports (1544) Outbreak and Pandemic Preparedness and Management (1839) Epidemiology (200)

Published on in Vol 12 (2026)

Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/75635, first published .
Postpandemic Change in Demographic and Clinical Features of Patients With Omicron Who Were Hospitalized: Territory-Wide Retrospective Repeated Cross-Sectional Study in Hong Kong

Postpandemic Change in Demographic and Clinical Features of Patients With Omicron Who Were Hospitalized: Territory-Wide Retrospective Repeated Cross-Sectional Study in Hong Kong

Postpandemic Change in Demographic and Clinical Features of Patients With Omicron Who Were Hospitalized: Territory-Wide Retrospective Repeated Cross-Sectional Study in Hong Kong

Authors of this article:

Christie J Y Ching1 Author Orcid Image ;   Sunny C L Chan1 Author Orcid Image ;   Teddy T L Lee1 Author Orcid Image ;   Hugo H H Pui1 Author Orcid Image ;   Bosco K H Leung1 Author Orcid Image ;   Man Sing Wong2 Author Orcid Image ;   Tafu Yamamoto3 Author Orcid Image ;   Chak Kwan Tong4 Author Orcid Image ;   Cantian Wang5 Author Orcid Image ;   Timothy H Rainer1 Author Orcid Image ;   Abraham K C Wai1, 5, 6 Author Orcid Image
Article Authors Cited by Tweetations Metrics

Christie J Y Ching   1 , MPH ;   Sunny C L Chan   1 , MStat ;   Teddy T L Lee   1 , MPH ;   Hugo H H Pui   1 , BNurs ;   Bosco K H Leung   1 ;   Man Sing Wong   2 , PhD ;   Tafu Yamamoto   3 , MBChB ;   Chak Kwan Tong   4 , MBBS ;   Cantian Wang   5 , BMed ;   Timothy H Rainer   1 , MD ;   Abraham K C Wai   1, 5, 6 , MD

1 Department of Emergency Medicine, School of Clinical Medicine, University of Hong Kong, Hong Kong, China

2 Department of Land Surveying and Geo-informatics, Faculty of Construction and Environment, The Hong Kong Polytechnic University, Hong Kong, China

3 Department of Accident & Emergency, Yan Chai Hospital, Hong Kong, China

4 Intensive Care Unit, Tuen Mun Hospital, Hong Kong, China

5 Department of Accident & Emergency, University of Hong Kong - Shenzhen Hospital, Shenzhen, China

6 Department of Accident & Emergency, Queen Mary Hospital, Hong Kong, China

Corresponding Author:

  • Abraham K C Wai, MD
  • Department of Emergency Medicine
  • School of Clinical Medicine, University of Hong Kong
  • G06, G/F, University of Hong Kong the Hong Kong Jockey Club Building for Interdisciplinary Research, 5 Sassoon Road, Pokfulam
  • Hong Kong
  • China
  • Phone: 85239179175
  • Email: awai@hku.hk