Figure 2.

Comorbidities existing prior to COVID-19 hospitalisation.

Comorbidities that existed prior to the hospitalisation for coronavirus disease (COVID-19) were included. New-onset diseases associated with COVID-19 were excluded. The number of cases with comorbidities data were 33,554 (obesity n=27,180). Definitions were based on Charlson scores, unless otherwise specified ²⁷. Cardiovascular disease includes myocardial infarction and congestive heart failure. Chronic respiratory disease was defined as pulmonary disease in patients who were dyspnoeic with slight activity and included chronic obstructive pulmonary disease. Bronchial asthma was diagnosed based on the physician's diagnosis. Obesity was defined as a body mass index ≥ 25.