Fig. 2.
Distribution of the number of days spent in a hospital by patients with/without comorbidities (A–C) and patients of different age groups (C). (A) – groups of patients regardless of age; (B) – groups of patients with the same median age. (C) – comparison of the mean length of hospital stay in patients of age groups, with/without comorbidities. HDO – hypertension, diabetes mellitus, and obesity