Table IV.

Distribution of risk factors and complications among admissions to the PICU during the period 2011–2018 at ‘P. and A. Kyriakou’ Children's Hospital in Athens, Greece.

Characteristics	All patients n=17	Influenza A n=12	Influenza B n=5
Sex, n (%)
Male	8 (47)	6 (50)	2 (40)
Female	9 (53)	6 (50)	3 (60)
Age group, n (%)
<6 months	4 (23)	4 (33)	0
6–24 months	4 (23)	3 (25)	1 (20)
2–5 years	3 (18)	3 (25)	0
5–14 years	6 (35)	2 (17)	4 (80)
Chronic conditions, n (%)
Yes	6 (35)	3 (25)	3 (60)
No	11 (65)	9 (75)	2 (40)
Complications, n (%)
Febrile convulsions	3 (18)	3 (25)	0
Acute necrotizing encephalopathy	2 (12)	2 (17)	0
Non-specific encephalopathy	2 (12)	1 (8)	1 (20)
Bronchiolitis	2 (12)	2 (17)	0
Pneumonia	2 (12)	1 (8)	1 (20)
Asthma	1 (6)	0	1 (20)
ARDS	1 (6)	1 (8)	0
Myocarditis	3 (18)	2 (17)	1 (20)
Non-specific cardiovascular symptoms	1 (6)	0	1 (20)
Days of PICU stay,
Median (range)	15.6 (1–190)	5.4 (1–18)	40.1 (1–190)

PICU, Paediatric Intensive Care Unit; ARDS, acute respiratory distress syndrome.