TABLE 3.

The interaction between current asthma, body mass index (BMI) and insulin resistance is not substantially altered by adjustments with other components of the metabolic syndrome

Models with current asthma as outcome, with interaction term for “BMI × insulin resistance”	p-value for interaction term	Point estimate for interaction term (95% CI)
Model 1: original model	0.03	1.23 (1.02–1.49)
Model 2: model 1 plus adjustment by triglyceride levels	0.03	1.23 (1.02–1.49)
Model 3: model 1 plus adjustment by hypertension	0.06	1.20 (0.99–1.44)
Model 4: model 1 plus adjustment by HbA1C levels	0.02	1.24 (1.03–1.49)
Model 5: model 1 plus adjustment by CRP levels	0.02	1.31 (1.05–1.63)

All models adjust for age, sex, race/ethnicity, poverty income ratio and smoking status.

HbA1C: glycohaemoglobin; CRP: C-reactive protein.

Bold point estimates are statistically significant.