Table 4

Association between asthma (wheeze or asthma attacks), asthma attacks and persistent wheeze and fatness (BMI and sum of skinfolds) in the representative sample, odds ratios for the comparison of the 90th and the 10th centiles of SDS

	Boys (n=4845)					Total
	OR	95% CI	p value	OR	95% CI	p value	OR	95% CI	p value
Asthma
BMI SDS
Unadjusted^4-151	1.25	1.05 to 1.47	0.01	1.36	1.11 to 1.67	0.003	1.29	1.13 to 1.47	<0.0001
Adjusted^4-152	1.26	1.05 to 1.52	0.01	1.31	1.05 to 1.65	0.01	1.28	1.11 to 1.48	0.001
Skinfolds SDS
Unadjusted	1.14	0.95 to 1.38	0.1	1.16	0.92 to 1.46	0.2	1.15	0.99 to 1.33	0.05
Adjusted	1.07	0.87 to 1.32	0.4	1.13	0.87 to 1.45	0.3	1.11	0.94 to 1.30	0.2
Asthma attacks
BMI SDS
Unadjusted	1.38	1.11 to 1.71	0.004	1.42	1.08 to 1.86	0.01	1.39	1.15 to 1.67	<0.0001
Adjusted	1.37	1.08 to 1.74	0.01	1.45	1.07 to 1.96	0.01	1.39	1.18 to 1.65	<0.0001
Skinfolds SDS
Unadjusted	1.13	0.88 to 1.44	0.3	1.17	0.86 to 1.60	0.3	1.14	0.94 to 1.38	0.1
Adjusted	1.05	0.80 to 1.37	0.7	1.21	0.86 to 1.70	0.2	1.11	0.90 to 1.37	0.3
Persistent wheeze
BMI SDS
Unadjusted	1.46	1.06 to 2.01	0.02	1.81	1.24 to 2.65	0.002	1.59	1.25 to 2.04	<0.0001
Adjusted	1.29	0.89 to 1.86	0.16	2.07	1.33 to 3.24	0.001	1.57	1.18 to 2.07	0.002
Skinfolds SDS
Unadjusted	1.29	0.91 to 1.85	0.1	1.51	0.98 to 2.31	0.05	1.38	1.05 to 1.81	0.02
Adjusted	1.05	0.70 to 1.58	0.8	1.47	0.89 to 2.43	0.1	1.22	0.90 to 1.67	0.2

BMI = body mass index; SDS = standard deviation score.
↵4-151 Adjusted for age; adjusted for age and sex for the total sample.
↵4-152 Adjusted for age, birth weight, number of children, father's social class, ethnicity, area and passive smoking.