Table 3

Association between asthma and WHR
Variables Asthma confirmed by BHR Previous asthma diagnosis
N cases OR (95% CI) N cases OR (95% CI)
WHR 1920 200 1920 284
< 0.50 1268 131 1 1268 166 1
≥ 0.50 652 69 1.02 (0.74 – 1.40) 652 118 1.48 (1.13 – 1.93)
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 – 3.01) 980 140 0.90 (0.69 – 1.18)
Smoking habit 1922 200 1922 284
Non-smokers 1588 156 1 1588 234 1
Smokers 334 44 1.47 (1.02 – 2.13) 334 50 1.00 (0.71 - 1.40)
Schooling (years) 1922 200 1922 294
≥ 12 282 45 1 282 35 1
9-11 978 118 0.74 (0.51 – 1.08) 978 144 1.28 (0.86 – 1.91)
≤ 8 662 37 0.36 (0.19 – 0.49) 662 105 1.49 (0.98 – 2.26)

N: number of subjects.

cases: numbers of subjects with asthma in every category.

CI: confidence interval.

OR: odds ratio.

WHR: waist-to-height ratio.

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

Open Data