Fig. 4: Age and COVID-19 transitions.
From: The natural history of symptomatic COVID-19 during the first wave in Catalonia
Estimated hazard ratios for age (relative to a reference age of 65) from cause-specific Cox models for each transition. Dotted lines represent 95% confidence intervals. The models shown included age as the only explanatory variable, with the overall models and models stratified by calendar month, sex, and region presented.
