Japan
Prospective cohort study
Primary data collection
3711
Passengers and crew members on board of Diamond Princess cruise ship.
National Institute of Infectious Diseases (NIID). Field Briefing: Diamond Princess COVID-19 Cases. Tokyo: NIID; 19 Feb 2020. Available from: https://www.niid.go.jp/niid/en/2019-ncove/9417-covid-dp-fe-02.html
Total
1 Month
SARS COV-2 infection
619
Confirmed cases of SARS-COV2 using PCR
Patient characteristics
Age
20-39 years
52
775
40-49 years
27
334
Odds ratio
1.010 (0.630-1.620)
No
none
ORs are calculated using data reported in the article
Average