COVID-19 pandemic changed the management and outcomes of acute appendicitis in northern Beijing: A single-center study

Table 1 Comparison of characteristics between the two groups (mean ± SD)

	Group 2020 (n = 185)	Group 2019 (n = 187)	P value
Sex, male, n (%)	95, 51.4%	83, 44.4%	0.18
Age (year)	40.40 ± 14.90	40.45 ± 15.66	0.70
Disease onset time (h)	36.78 ± 57.05	33.27 ± 34.92	0.18
Nausea, vomiting or diarrhea, n (%)	94, 50.8%	104, 55.6%	0.35
Peritonitis, n (%)	75, 40.5%	93, 49.7%	0.08
Comorbidities, n (%)	24, 13%	17, 9.1%	0.23
History of appendicitis, n (%)	30, 16.2%	28, 15%	0.74
Fever, n (%)	120, 64.5%	99, 52.9%	0.02
WBC (109/L)	12.94 ± 4.42	12.73 ± 4.11	0.41
CRP (mg/L)	33.40 ± 51.64	36.00 ± 56.17	0.78
N%	80.92 ± 11.91	80.72 ± 10.69	0.58
NLR	10.56 ± 9.58	9.60 ± 8.17	0.32
Appendix diameter (mm)	9.31 ± 4.05	4.78 ± 4.20	< 0.01
Appendicolith, n (%)	65, 35.1%	68, 36.4%	0.81
Ascites in image, n (%)	43, 23.2%	45, 24.1%	0.85
Treatment, non-surgical treatment, n (%)	159, 85.9%	74, 39.6%	< 0.01
Uncomplicated appendicitis, n (%)	97, 52.4%	120, 64.2%	0.02

WBC: White blood cell count; CRP: C-reactive protein; NLR: Neutrophil-to-lymphocyte ratio.