Comparison of the impact of endoscopic retrograde cholangiopancreatography between pre-COVID-19 and current COVID-19 outbreaks in South Korea: Retrospective survey

Table 1 Comparison of the basic characteristics of emergency endoscopic retrograde cholangiopancreatography from February 18 to March 28 during 2020, before and during the Coronavirus Disease 2019 outbreak (n = 113)

Variable		Year
	2018 (n = 42)	2019 (n = 55)	2020 (n = 16)	P value
Sex (M/F)	16/26 (38.1/61.9)	28/27 (50.9/49.1)	12/4 (75.0/25.0)	0.041
Age (yr)	73.0 ± 13.7 (33-91)	72.1 ± 14.0 (41-99)	66.3 ± 13.4 (48-95)	0.244
Hemoglobin (g/dL)	11.7 ± 1.8	13.7 ± 11.6	12.0 ± 2.8	0.487
Total bilirubin (mg/dL)	4.2 ± 4.4	5.7 ± 5.1	5.5 ± 7.4	0.388
AST (IU/L)	356.6 ± 543.4	290.8 ± 385.6	274.6 ± 336.8	0.722
ALT (IU/L)	253.9 ± 327.3	306.4 ± 406.7	234.7 ± 239.9	0.693
ALP (IU/L)	311.5 ± 286.5	378.2 ± 361.9	275.6 ± 196.0	0.408
GGT (IU/L)	328.9 ± 286.2	478.7 ± 476.6	464.1 ± 422.2	0.186

Values are presented as means ± SD (ranges) or numbers (%). ALT: Alanine transaminase; AST: Aspartate transaminase; ALP: Alkaline phosphatase; GGT: Gamma-glutamyl transpeptidase.