Fig. 2From: Progression of severity in coronavirus disease 2019 patients before treatment and a self-assessment scale to predict disease severityEffect size of strong predictors at different illness duration. The effect size (Cohen’s d for continuous variables and odds ratio for categorical variables) of three strong severity predictors (age, shortness of breath, and lymphocyte percentage) with different illness durations. All the three variables could help to find out severe patients at different illness durationBack to article page