Table 2.

Comparison between ABX + and ABX- group

	ABX +	ABX-	p-value
Median age (range) in years	2.9 (0–17)	1.3 (0–17)	0.0062*
Median hospital stay (range) in days	6 (1–76)	5 (1–59)	< 0.0001*
Number of patients who experienced complications (%)	307 (90)	271 (58.2)	< 0.0001*
Median hospitalization cost (range) in EUR	3227 (537–40,871)	2686 (537–31,729)	< 0.0001*
Number of patients with underlying diseases (%)	67 (19.4)	83 (17.8)	0.297

^*Data with statistical significance. The comparison study between two different groups included the use Mann–Whitney test (nonparametric distribution). To compare proportions chi-squared test were performed