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. Author manuscript; available in PMC: 2018 Feb 16.
Published in final edited form as: Eur Respir J. 2016 Apr 21;48(2):403–410. doi: 10.1183/13993003.00246-2016

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.