Table 1.

Chronic co-morbid conditions in children hospitalized with influenza A/H1N1v infection in Brussels

	Global cohort	Ward patients	PICU patients
	N = 215	N = 194	N = 21
N of Patients with ≥ 1 co-morbidity (%)	101 (47)	88 (45)	13 (62)	p = 0.1
Distribution of co-morbidities	n (%)	n (%)	n (%)
Chronic lung disease	32 (15)	30 (15)	2 (10)
Asthma	18 (8)	18 (9)
Neurological disease	31 (14)	26 (13)	5 (24)
History of prematurity	21 (10)	21 (11)	none
median GA* (weeks)	33 W
Hemato-oncology	19 (9)	17 (9)	2 (10)
HSCT**	2 (1)	2 (1)
Sickle-cell disease	8 (4)	7 (4)	1 (5)
Congenital heart disease	14 (7)	12 (6)	2 (10)
surgically corrected	6 (3)
Malnutrition	12 (6)	12 (6)	none
Metabolic disease	3 (1)	3 (2)	none
Diabetes	2 (1)	1 (< 1)	1 (5)
Renal disease	3 (1)	2 (1)	1 (5)
Solid organ transplant	2 (1)	1 (< 1)	1 (5)

Legend:* Gestational age,** Hematopoietic cell transplantation recipients