Table 1.

Main demographic and clinical characteristics of the patients

	Episodes N = 3235 (%)
Demographics
Male sex	1841 (56.9)
Age, median (IQR) years	57 (44–67)
Older than 45 years	2378 (73.5)
Baseline disease
Acute leukemia	1221 (38)
Hematopoietic stem cell transplant	914 (28)
Main clinical conditions
Prior antibiotic consumption	2086 (64.5)
First-ever episode of FN	1542 (47.7)
First FN in this hospitalization	2540 (78.5)
Median days from hospital admission to FN episode (IQR)	9 (1–17)
More than 15 prior visits to hospital	255 (7.9)
Severe mucositis	591 (18.3)
FN in ICU	319 (9.9)