Table 4

Association between asthma and WC
Variables Asthma confirmed by BHR Previous asthma diagnosis
N cases OR (95% CI) N cases OR (95% CI)
WC 1921 200 1921 284
normal 1300 141 1 1300 193 1
abnormal 621 59 0.96 (0.69 – 1.33) 621 91 1.32 (1.00 – 1.75)
Physical activity 1922 200 1922 284
Active 1113 97 1 1113 149 1
Inactive 809 103 1.16 (0.85 - 1.58) 801 135 1.35 (1.04 – 1.76)
Gender 1922 200 1922 284
Male 942 67 1 942 144 1
Female 980 133 2.16 (1.56 – 2.99) 980 140 0.84 (0.65 – 1.09)
Smoking habit 1922 200 1922 284
Non-smokers 1588 156 1 1588 234 1
Smokers 334 44 1.48 (1.02 – 2.14) 334 50 1.01 (0.72 - 1.41)
Schooling (years) 1922 200 1922 294
≥ 12 282 45 1 282 35 1
9-11 978 118 0.74 (0.51 – 1.09) 978 144 1.27 (0.85 – 1.90)
≤ 8 662 37 0.31 (0.19 – 0.49) 662 105 1.47 (0.97 – 2.23)

N: number of subjects.

cases: numbers of subjects with asthma in every category.

CI: confidence interval.

OR: odds ratio.

WC: waist circumference.

BHR: bronchial hyperresponsiveness.

Analysis was adjusted for gender, socioeconomic level, smoking status and physical activities.

Multivariate analysis.

Cetlin et al.

Cetlin et al. BMC Public Health 2012 12:844   doi:10.1186/1471-2458-12-844

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