Table 5.

Analysis between METS-IR index with onset age of asthma.

Characteristic	Model 1 β (95%CI)	Model 2 β (95%CI)	Model 3 β (95%CI)
METS-IR Index	0.101 (0.046, 0.156)	0.098 (0.043, 0.152)	-0.057 (-0.112, -0.002)
Subgroup analysis stratified by diabetes
YES	-0.012 (-0.149, 0.125)	-0.017 (-0.155, 0.120)	-0.004 (-0.142, 0.134)
NO	0.035 (-0.027, 0.097)	0.032 (-0.030, 0.093)	-0.062 (-0.122, -0.002)

Model 1=no covariates were adjusted. Model 2=Model 1+gender, race were adjusted. Model3=adjusted for all covariates except effect modifier. The subgroup analysis was stratified by diabetes and hypertension, not adjusted for the stratification variable itself