Table 3.

LOS and in-hospital mortality according to the admission period

Variables	Whole study period	Pre-LD	In-LD	After-LD	p-value
ICCU LOS	3 (2–4)	2 (1–4)	2 (1–5)	3 (2–4)	0.11
Hospital LOS	7 (4–12)	7 (4–13)	7 (5–11)	6 (4–11)	0.45
In-hospital mortality	55 (6.8)	26 (8.2)	15 (7.2)	14 (5)	0.3
ACS
ICCU LOS	3 (2–4)	2 (1–4)	3 (2–4)	3 (2–4)	0.66
Hospital LOS	6 (4–10)	6 (4–11)	6 (4–9)	6 (4–10)	0.58
In-hospital mortality	28 (5.6)	15 (7.1)	8 (7)	5 (2.9)	0.16
STEMI
ICCU LOS	3 (2–4)	3 (2–5)	3 (2–4)	3 (1–4)	0.054
Hospital LOS	6 (4–10)	7 (5–11)	6 (5–9)	6 (4–9)	0.27
In-hospital mortality	21 (7.5)	12 (10.9)	7 (9.5)	2 (2.1)	0.04
NSTEMI/UA
ICCU LOS	2 (1–4)	2 (1–3)	2 (1–5)	3 (2–4)	0.001
Hospital LOS	6 (4–9.5)	5 (4–10)	5,5 (4–9)	6 (4–10)	0.88
In-hospital mortality	7 (3.2)	3 (2.9)	1 (2.5)	3 (4)	0.88

Outcome differences among the three main admission periods

Categorical variables are presented as absolute number and percentage value. Numeric data are expressed as mean (SD) or median (interquartile range [IQR]), as appropriate

A Chi-square test was performed for categorical variables, while a non-parametric analysis of variance (Kruskal–Wallis test) was used for comparison of continuous variables among the three groups. ACS acute coronary syndrome, STEMI ST-elevation myocardial infarction, NSTEMI/UA Non-ST-elevation myocardial infarction/unstable angina, ICCU intensive cardiac care unit, LOS length of stay. Pre-LD, in-LD and after-LD: before the lockdown, during the lockdown and after the lockdown period