Fig. 3From: The association of asthma duration with body mass index and Weight-Adjusted-Waist index in a nationwide study of the U.S. adultsThe association between the asthma duration and obesity indexes. a The association between the asthma duration and WWI. b The association between the asthma duration and BMI. *Solid rad line represents the smooth curve fit between variables. Blue bands represent the 95% of confidence interval from the fit. *All the covariates were adjustedBack to article page