Table 3

Adjusted means and 95% confidence intervals of lung function testing variables related to ever asthma according to sex and atopy (n = 1614)
Sex/Atopy Ever asthma FVC(L) FEV1(L) FEV1/FVC(%)
Mean 95% CI Mean 95% CI Mean 95% CI
Sex
Men No 4.41 4.35-4.46 3.56 3.51-3.61 80.9 80.2-81.5
Yes 4.21 4.02-4.41 3.23 3.05-3.40 76.2 74.0-78.5
Women No 3.72 3.67-3.77 2.97 2.93-3.02 80.0 79.4-80.5
Yes 3.65 3.54-3.77 2.88 2.78-2.99 78.2 76.9-79.6
P value for asthma x sex 0.283 0.024 0.033
Atopy
No No 4.02 3.99-4.05 3.23 3.20-3.26 80.4 80.0-80.8
Yes 3.88 3.75-4.02 3.03 2.91-3.15 77.5 75.9-79.1
Yes No 4.03 3.97-4.08 3.23 3.18-3.28 80.3 79.7-80.9
Yes 3.96 3.81-4.12 3.12 2.99-3.25 78.2 76.5-79.9
P value for asthma x atopy 0.524 0.346 0.511

*Multivariate analysis of variance; models included sex age, height, weight, waist circumference, smoking, atopy and asthma as well as sex x asthma or atopy x asthma interaction term.

FVC, forced vital capacity; FEV1, forced expired volume in one second; SE, standard error; WC, waist circumference.

Chen et al.

Chen et al. BMC Pulmonary Medicine 2012 12:32   doi:10.1186/1471-2466-12-32

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