Table 2

Odds ratios (OR) for having asthma symptoms or troublesome asthma as young adults aged 23–25 yrs if the shown characteristic was present at age 8–10 yrs

Childhood characteristic	Asthma Symptoms (n=200)				Troublesome Asthma ( n=82)
Childhood characteristic	Unadjusted OR	p‐value	Adjusted OR	p‐value	Unadjusted OR	p‐value	Adjusted OR	p‐value
Atopy	3.2 (2.1–4.9)	<0.001	2.6 (1.6–4.0)	<0.001	4.0 (2.5–6.6)	<0.001	4.0 (2.3–7.2)	0.0001
AHR	5.1 (2.8–9.4)	<0.001	2.9 (1.5–5.6)	0.002	3.7 (2.0–6.8)	<0.001
Recent wheeze	4.1 (2.3–7.2)	<0.001	2.1 (1.1–5.0)	0.02	4.0 (2.2–7.2)	<0.001
FEV₁/FVC ratio <80%	3.4 (1.3–8.6)	0.02	3.0 (1.0–9.1)	0.05	3.7 (1.4–9.8)	0.008	4.1 (1.4–12.3)	0.02
Female	1.3 (0.9–1.8)	0.2	1.7 (1.1–2.4)	0.008	1.9 (1.1–3.0)	0.01	3.2 (1.8–5.7)	0.0001
Diagnosed asthma	2.6 (1.5–4.6)	0.001			2.1 (1.1–4.0)	0.03
Eczema	1.6 (1.1–2.4)	0.03			2.2 (1.3–3.6)	0.003
Hayfever	2.6 (1.7–3.9)	<0.001			4.1 (2.5–6.8)	<0.001	2.9 (1.7–5.1)	0.0002
Bronchitis before age 2 yrs	1.9 (1.3–2.9)	0.002			2.4 (1.4–3.9)	0.002
Maternal asthma	1.2 (0.7–2.1)	0.5			1.1 (0.5–2.4)	0.8
Maternal allergies	1.1 (0.8–1.6)	0.5			1.5 (0.9–2.3)	0.1
Paternal asthma	1.6 (0.8–2.9)	0.2			2.4 (1.2–4.8)	0.02
Paternal allergies	1.0 (0.7–1.4)	0.9			1.2 (0.7–2.0)	0.4

Data are presented as OR (95% confidence interval) unless otherwise stated
AHR: airway hyperresponsiveness
FEV₁: forced expiratory volume inone second
FVC: forced vital capacity
Variables were included in the final model if p<0.05
The variables in the final model were adjusted for eachother