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. 2008 May 1;31(5):635–643. doi: 10.1093/sleep/31.5.635

Table 3.

Sensitivity Analysis Results for Relationships Between Sleep Duration and Cardiometabolic Risk in the Subsample of Participants not Taking Antihypertensive Medication (n = 1173, 96.6% of the Sample)

Reported sleep duration, hours Individual components of the metabolic syndrome
Metabolic syndrome OR (95% CI) Central adiposity criterion OR (95% CI) Glucose criterion OR (95% CI) Blood pressure criterion OR (95% CI) Triglycerides criterion OR (95% CI) HDL criterion OR (95% CI)
< 6 1.76 (1.13–2.74) 1.75 (1.19–2.56) 1.76 (1.19–2.60) 1.13 (0.76–1.68) 1.29 (0.82–2.03) 1.31 (0.87–1.95)
6 – < 7 1.47 (1.03–2.11) 1.64 (1.22–2.22) 1.06 (0.77–1.45) 0.96 (0.70–1.31) 1.51 (1.07–2.13) 1.26 (0.92–1.73)
7– 8 Ref Ref Ref Ref Ref Ref
> 8 1.65 (0.91–3.00) 1.41 (0.85–2.34) 1.56 (0.93–2.63) 0.87 (0.49–1.54) 0.91 (0.48–1.74) 1.77 (1.08–2.89)

Sleep duration = 7–8 hours as referent; covariates included age, sex, race, educational attainment, smoker, physical activity, low-density lipoprotein (LDL) cholesterol and symptoms of depression (odds ratio [OR] and 95% confidence interval [CI] not shown). HDL refers to high-density lipoprotein.