Table 1 Characteristics of participants with and without a positive EIB test, n = 140. Data are presented as n (%) or mean ± SD unless otherwise indicated

Age (years), mean (min,max)

14.3 (13,15)

14.2 (13,15)

0.31

Female

36 (73)

48 (53)

0.017

BMI

21.3 ± 2.8

20.8 ± 2.9

0.30

Overweight and obesity

6 (12)

9 (10)

0.67

Exercise-induced dyspnoea

42 (86)

52 (57)

<0.001

Ever asthma^a

22 (45)

18 (20)

0.002

Rhinitis

17 (35)

30 (33)

0.84

FVC% predicted^b

93 ± 11

95 ± 11

0.31

FEV₁ % predicted^b

90 ± 9

94 ± 11

0.049

IgE sensitisation

21 (43)

41 (45)

0.80

Inhaled corticoid steroids

14 (28.6)

11 (12.1)

0.015

Short acting beta-2-agonist

22 (44.9)

22 (24.2)

0.012

Disturbed sleep

9 (18.4)

1 (1.1)

<0.001

HAD

 Anxiety, median (IQR)

6 (5)

4 (4)

0.007

 Depression, median (IQR)

2 (4)

2 (3)

0.78