. 2021 Jul 3;18(13):7143. doi: 10.3390/ijerph18137143

Table 4.

Comparison of number of hospitalizations in chosen Polish province and university “COVID” and “NON-COVID” hospitals (February–August period) in 2019 and 2020, and % change between 2019 and 2020 in consecutive months.

Hospitalizations				Months
	February	March	April	May	June	July	August
COUNTY HOSPITALS
COVID: Hospital in Lomza
Number in 2019	1488	1537	1488	1512	1365	1474	1379
Number in 2020	1494	689	69	38	247	601	580
Change in number (2019–2020)	6	−848	−584	−1474	−1118	−873	−799
% change (2019–2020)	0.4	−55.2	−94.8	−97.5	−81.9	−59.2	−57.9
NON-COVID: Sniadecja Hospital in Bialystok
Number in 2019	1933	1922	1890	1959	1776	2001	1601
Number in 2020	1810	1402	875	1395	1592	1747	1446
Change in number (2019–2020)	−123	−520	−1015	−564	−184	−254	−155
% change (2019–2020)	−6.4	−27.1	−53.7	−28.8	−10.4	−12.7	−9.7
P^a	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001
UNIVERSITY HOSPITALS
COVID: University Hospital in Cracow
Number in 2019	4998	5168	4828	5189	4541	5449	4340
Number in 2020	4462	2982	1226	1887	2766	3636	1258
Change in number (2019–2020)	−536	−2186	−3602	−3302	−1775	−1813	−3082
% change (2019–2020)	−10.7	−42.3	−74.6	−63.6	−39.1	−33.3	−71.0
NON-COVID: University Hospital in Bialystok
Number in 2019	3288	3713	3622	3468	3315	3520	2907
Number in 2020	3399	2226	961	1572	2150	2537	1990
Change in number (2019–2020)	111	−1487	−2661	−1896	−1165	−983	−917
% change (2019–2020)	3.4	−40.0	−73.5	−54.7	−35.1	−27.9	−31.5
P^b	<0.001	0.03	0.25	<0.001	<0.001	<0.001	<0.001

P^a—U-test for the comparison of % change (2019–2020) between COVID and NON-COVID county hospitals; P^b—U test for the comparison of % change (2019–2020) between COVID and NON-COVID university hospitals. MSWiA, the Ministry of Interior and Administration.