Table 4.

Multivariate linear regression analysis considering FEV1/FVC as dependent variable.

	Total			Men			Women
	B	95% CI	p	B	95% CI	p	B	95% CI	p
Sex	0.019	0.002 to 0.036	0.029
Age	− 0.003	− 0.004 to − 0.003	< 0.001	− 0.004	− 0.006 to − 0.003	< 0.001	− 0.002	− 0.003 to − 0.002	< 0.001
Alcohol Hx	0.002	− 0.009 to 0.013	0.735	0.010	− 0.020 to 0.039	0.523	0.001	− 0.009 to 0.011	0.797
Smoking Hx	− 0.019	− 0.026 to − 0.012	< 0.001	− 0.020	− 0.030 to − 0.010	< 0.001	− 0.017	− 0.027 to − 0.006	0.001
Height	− 0.003	− 0.004 to − 0.002	< 0.001	− 0.003	− 0.005 to − 0.002	< 0.001	− 0.002	− 0.003 to − 0.001	< 0.001
Weight	0.002	0.001 to 0.002	< 0.001	0.002	0.001 to 0.003	< 0.001	0.001	0.001 to 0.002	< 0.001
Folate	0.001	0.000 to 0.002	0.032	0.003	0.001 to 0.005	0.007	0.000	− 0.001 to 0.001	0.857
Vitamin A	0.020	− 0.003 to 0.043	0.090	0.025	− 0.013 to 0.063	0.204	0.009	− 0.018 to 0.036	0.511
Vitamin E	0.000	− 0.001 to 0.001	0.673	− 0.001	− 0.002 to 0.001	0.517	0.000	− 0.001 to 0.001	0.940

Bold italics indicates statistical significance (p < 0.05).

CI Confidence interval.