Table 2: Clinical signs of patients with A(H1N1)pdm09 virus infection.

Symptoms

Influenza Season

odds-ratio

p-value

2009/10 2012/13

pneumonia

13 (22)

7 (47)

0.5 (0.2-1.0)

= 0.05

airway obstruction

15 (25)

11 (73)

0.3 (0.2-0.6)

< 0.01

temp. > 38.5C

51 (88)

15 (100)

0.9 (0.8-1.0)

> 0.05

acute otitis media

12 (21)

2 (13)

1.6 (0.4-6.3)

> 0.05

conjunctivitis

3 (5)

2 (13)

0.4 (0.1-2.2)

> 0.05

rhinitis

9 (16)

5 (33)

0.5 (0.2-1.2)

> 0.05

cough

42 (74)

10 (77)

1.1 (0.7-1.6)

> 0.05

tachypnea

4 (7)

5 (33)

0.2 (0.1-0.7)

< 0.01

chest retractions

3 (5)

3 (20)

0.3 (0.1-1.1)

> 0.05

vomiting

17 (30)

3 (20)

1.5 (0.5-4.4)

> 0.05

diarrhea

10 (18)

4 (27)

0.7 (0.2-1.8)

> 0.05

cephalgia

10 (18)

0

 

 

arhtralgia

5 (9)

0

 

 

 

Values are absolute numbers (and % of the respective collective), except as indicated. d: Days, PICU: Pediatric Intensive Care Unit, temp: Temperature.