Table 5.

Multiple linear regression analysis with serum lactate as an outcome variable (adjusted R²=0.49) and AHI as a predictor variable (controlling for age, BMI, and WHR).

Independent variables	Coefficient	Standard error	t	P
Constant	−2.48
Age (year)	0.03	0.02	1.40	.18
BMI	−0.01	0.02	−0.12	.90
WHR	2.83	1.51	1.86	.08
AHI	0.02	0.01	3.27	.005

AHI: Apnea-hypopnea index, BMI: body mass index, WHR: waist-hip ratio.