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

Table 2 Comparison of characteristics and outcomes between the two groups with non-surgical management (mean ± SD)

	Group 2020 (n = 159)	Group 2019 (n = 74)	P value
Sex, male, n (%)	85, 53.5%	36, 48.6%	0.49
Age (year)	40.03 ± 15.12	40.50 ± 17.10	0.77
Disease onset time (h)	35.24 ± 54.86	39.89 ± 48.44	0.16
Nausea, vomiting or diarrhea, n (%)	84, 52.8%	29, 39.2%	0.05
Peritonitis, n (%)	50, 31.4%	17, 23.0%	0.18
Comorbidities, n (%)	18, 11.3%	3, 4.1%	0.07
History of appendicitis, n (%)	26, 16.4%	11, 14.9%	0.77
Fever, n (%)	107, 67.3%	53, 71.6%	0.51
WBC (109/L)	12.67 ± 4.37	11.85 ± 4.48	0.35
CRP (mg/L)	30.16 ± 48.19	28.58 ± 45.21	0.92
N%	80.49 ± 12.31	76.63 ± 12.88	0.01
NLR	10.51 ± 9.95	7.22 ± 6.33	0.02
Appendix diameter (mm)	10.13 ± 3.34	9.84 ± 2.24	0.10
Appendicolith, n (%)	53, 33.3%	21, 28.4%	0.45
Ascites in image, n (%)	30, 18.9%	16, 21.6%	0.62
Uncomplicated appendicitis, n (%)	84, 52.8%	42, 56.8%	0.58
IV antibiotics			0.40
Cephalosporin, n (%)	137, 86.2%	65, 87.8%
Others, n (%)	9, 5.7%	6, 8.1%
None, n (%)	13, 8.2%	3, 4.1%
Antibiotic treatment days (d)	4.08 ± 3.28	4.03 ± 2.63	0.85
Convert to operation, n (%)	16, 10.1%	3, 4.1%	0.12
Recurrence, n (%)	2, 1.3%	16, 21.6%	< 0.001

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