Table 4.
FEV1 and FVC predicted by gender and BMI category and waist to height ratio (WHtR) after adjusting for covariates including age, history of family asthma, family income, and site.
BMI as a predictor (n=289) | WHtR as a predictor (n=274) | |||
---|---|---|---|---|
Gender (male=1, female=2) B (95%CI) | BMI category (under/normal=1, over/obesity=2) B (95%CI) | Gender (male=1, female=2) B (95%CI) | WHtR B (95%CI) | |
FVC, %predicted | 4.22 (0.73, 7.71) p=.02 | 6.44 (3.02, 9.85) p<.01 | 4.10 (0.43, 7.77) p=.03 | 20.69 (2.20, 39.17) p=.03 |
FEV1, %predicted | 4.09 (−0.03, 8.20) p=.05 | 4.52 (0.49, 8.55) p=.03 | 4.29 (0.03, 8.54) p=.05 | 4.11 (−17.31, 25.53) p=.71 |
FVC (L), absolute value | −0.60 (−0.77, −0.43) p<.01 | 0.39 (0.23, 0.56) p<.01 | −0.63 (−0.80, −0.45) P<0.01 | 0.98 (0.08, 1.88) p=.03 |
FEV1 (L), absolute value | −0.41 (−0.57, −0.25) p<.01 | 0.26 (0.11, 0.42) p<.01 | −0.42 (−0.58, −0.25) P<0.01 | 0.31 (−0.52, 1.41) p=.46 |