Table 3.

Association of obesity-related indices with baseline FEV1/FVC using multivariable linear regression analysis.

Obesity-Related Indices	Multivariable		Adjusted R Square
	Unstandardized Coefficient β (95% CI)	p
BMI (per 1 kg/m2)	0.303 (0.180, 0.426)	<0.001	0.6%
WHR (per 1%)	0.123 (0.059, 0.186)	<0.001	0.5%
WHtR (per 1%)	0.190 (0.120, 0.261)	<0.001	0.7%
LAP (per 1)	0.245 (0.092, 0.397)	0.002	0.5%
BRI (per 1)	0.565 (0.336, 0.793)	<0.001	0.6%
CI (per 0.1)	0.694 (0.210, 1.178)	0.005	0.4%
BAI (per 1)	0.263 (0.152, 0.374)	<0.001	0.6%
AVI (per 1)	0.296 (0.161, 0.431)	<0.001	0.6%

Values expressed as unstandardized coefficient β and 95% confidence interval (CI). Abbreviations are the same as in Table 1. Multivariable model: adjusted for age, sex, SBP, DBP, and uric acid (significant variables of Table 2).