Fig. 2

Summary effect meta-analysis of hospitalisation, ICU admission, and death. I. Hospitalisation: A. association of hospitalisation and comorbidity, B. association of hospitalisation and demographic, behavioural, and occupational. II. ICU admission: A. association of ICU admission and comorbidity, B. association of ICU admission and behavioural, demographic, and occupational factors. III. Death: A. association of death and comorbidity, B. association of death and behavioural, demographic, and occupational factors