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
COVID-19 (any condition)
301
Confirmed COVID-19
Patient characteristics
Age
20-39 years
52
775
80-89 years
29
216
Odds ratio
2.160 (1.330-3.490)
No
Yes
none
ORs are calculated using data reported in the article
Average