Table 1.

Epidemiological characteristics of patients who underwent hip and knee arthroplasty.

Variable	2020 Pandemic	2019 No Pandemic	Differences between 2020 vs. 2019	p	Pearson Correlation Coefficient
Total number of patients—hip endoprosthesis	91	123	−26%	0,0456	0,59
women	55	74	−25,68%	0,0243	0,53
men	36	49	−26,53%
Total number of all patients—knee endoprosthesis	32	57	−43,86%	0,0024	0,69
women	19	39	−51,28%	0,00033	0,71
men	13	18	−27,77%
Total number of hip revision	14	20	−30,00%
Total number of knee revision	4	2	100,00%
mean age of all patients	68,13	70,19	−2,93%	0,1557	0,12
mean age of women -hip endoprosthesis	74,36	75,66	−1,72%	0,8512	0,09
mean age of men—hip endoprosthesis	66,7	68,34	−2,40%
mean age of women -knee endoprosthesis	68,32	70,12	−2,57%	0,6827	0,19
mean age of men—knee endoprosthesis	63,15	66,7	−5,32%
mean age of hip revision
mean age of knee revision
medium duration of hospitalization (days)	5,8	7,52	−22,87%	0,012	0,64
medium duration of women hospitalization—hip endoprosthesis (days)	7,03	7,08	−0,70%	0,01714	0,58
medium duration of men hospitalization—hip endoprosthesis (days)	6	9,8	−38,77%
medium duration of women hospitalization—knee endoprosthesis (days)	4,5	5,8	−22,41%	0,023	0,45
medium duration of men hospitalization—knee endoprosthesis (days)	5,8	7,4	21,62%
medium duration of women hospitalization—hip revision (days)
medium duration of women hospitalization—knee revision (days)
female to male ratio	1,51	1,96	−22,96%	0,02813	0,57