Figure 1.

(a) Age distribution of patients. (b) Odds ratios of presenting features and severe disease. (c) Distribution and (d) odds ratios of severe disease associated with chronic exposure to different antihypertensive categories and in patients with a history of hypertension. (e) Distribution and (f) odds ratios of severe disease associated with chronic exposure to either ACEi or ARB in populations matched according to age, sex, comorbidities (diabetes mellitus, COPD/asthma, CAD and CHF), smoking status, and serum creatinine levels

ACEi - angiotensin-converting enzyme inhibitors; ARB - angiotensin II receptor type 1 blockers; CAD - coronary artery disease; CHF - congestive heart failure; CKD - chronic kidney disease; COPD - chronic obstructive pulmonary disease; ICU - intensive care unit