Table 3.

Regression coefficients of dependent variables of lung function.

	Lung function	HOMA-IR						P value for interaction
		No- asthma group			Asthma group
		Beta	SE	P value	Beta	SE	P value
Model 1	FEV1% predicted	−4.467	0.793	<0.0001	−1.399	2.164	0.5185	0.6113
	FVC% predicted	−3.892	0.719	<0.0001	−3.917	2.315	0.0916	0.6655
	FEV1/FVC ratio	−0.007	0.004	0.0985	0.02	0.014	0.1403	0.1962
Model 2	FEV1% predicted	−4.267	0.811	<0.0001	−1.221	2.159	0.5721	0.5658
	FVC% predicted	−3.656	0.736	<0.0001	−3.368	2.414	0.1638	0.6567
	FEV1/FVC ratio	−0.007	0.004	0.0864	0.018	0.012	0.1592	0.1478

Data are presented as β coefficients and SE (standard error). Model 1: adjusted for age, sex, and BMI; Model 2: adjusted for age, sex, BMI, smoking status (current smoker), drinking status (>30 mg/day), and exercise status.

HOMA-IR, homeostasis model of assessment of insulin resistance; FVC, forced vital capacity; FEV1, forced expiratory volume in 1 second.