Table 5. Multivariate logistic regression of risk factors of little REM sleep in patients with OSA.

Variables	Odds ratio	95% CI	p
Age	0.997	0.989–1.005	0.483
BMI	1.009	0.973–1.046	0.633
AHI	1.512	1.020–1.812	<0.001
Supine position	1.003	0.998–1.272	0.180

AHI: apnea-hypopnea index, BMI: body mass index, CI: confidence interval, OSA: obstructive sleep apnea, REM: rapid eye movement.