Table 5.

Linear regression model of pre-bronchodilator predicted FEV ₁ %, FVC% and FEV ₁ /FVC ratio in asthmatic women; HUGG, 2013–2014

		FEV 1 % predicted		FVC % predicted		FEV 1 /FVC
Variable	Category or increment	Model 1* β (95% CI)	p	Model 2** β (95% CI)	p	Model 3*** β (95% CI)	p
Central	Normal	Baseline	0.20	Baseline	0.02	Baseline	0.57
Obesity	>88 cm	−5.67 (−14.48 to 3.13)		−8.98 (−16.75 to −1.20)		1.51 (−3.82to 6.85)
Age	Years	−0.39 (−0.73 to 0.60)	0.02	−0.43 (−0,73 to −0,14)	0.00	−0.03 (−0.23 to 0.17)	0.75
Education Level	>4 years	Baseline	0.68	Baseline	0.46	Baseline	0.99
	≤4 years	−1.76 (−10.20 to 6.68)		−2.72 (−10.14 to 4.69)		−0.02 (−5.14 to 5.09)
Age of Onset	≤12years	Baseline	0.82	Baseline	0.43	Baseline	0.36
	>12years	1.46 (−11.42 to 14.36)		4.46 (−6,.89 to 15.81)		−3.61 (−11.42 to 4.20)
Disease Duration	Years	−0.07 (−0.40 to 0.25)	0.65	0.16 (−0.13 to 0.45)	0.27	−0,23 (−0.43 to −0.03)	0.02

*Model 1: Linear regression model pre-bronchodilator predicted FEV₁%.

R²:0,075.

**Model 2: Linear regression model of pre-bronchodilator predicted FVC%.

R²:0,107.

***Model 3: Linear regression model of pre-bronchodilator FEV₁/FVC ratio.

R²:0,032.

Central obesity defined according to WC.