Table 2.

Multivariate logistic regression models assessing the association between snoring frequency and prediabetes stratified by total cholesterol

Model	Snoring frequency	Prediabetes
		Nonhypocholesterolemia			Hypocholesterolemia
		OR	95% CI	P	OR	95% CI	P
Model 0	Never	1.0	–	–	1.0	–	–
	Occasional	1.2	1.1–1.4	<0.001	1.1	1.0–1.3	0.078
	Habitual	1.8	1.6–2.0	<0.001	1.4	1.2–1.7	<0.001
Model 1	Never	1.0	–	–	1.0	–	–
	Occasional	1.1	1.0–1.3	0.030	1.1	0.9–1.2	0.444
	Habitual	1.5	1.3–1.7	<0.001	1.2	1.0–1.5	0.017
Model 2	Never	1.0	–	–	1.0	–	–
	Occasional	1.1	1.0–1.2	0.110	1.0	0.9–1.2	0.684
	Habitual	1.4	1.2–1.6	<0.001	1.1	0.9–1.3	0.238

Hypocholesterolemia: TC ≥5.6 mmol/L. Model 0: Adjusted for no confounding factors; Model 1: Adjusted for age, gender, and BMI; Model 2: Adjusted for age, gender, BMI, education, WC, HC, WHR, smoke, alcohol drinker, tea drinker, TC, serum TGs, HDL-C, LDL-C, depression status, CVD, HTN, family history of diabetes, sleep quality, and duration of night sleep. –: Not applicable. OR: Odds ratio; CI: Confidence intervals; BMI: Body mass index; HTN: Hypertension; HDL-C: High-density lipoprotein cholesterol; LDL-C: Low-density lipoprotein cholesterol; WHR: Waist-to-hip ratio; WC: Waist circumference; HC: Hip circumference; TG: Triglyceride; TC: Total cholesterol; CVD: Cardiovascular disease.