Table 1

Prevalence and ORs for the presence of MetSyn and its associated components according to total sleep duration

n (%)Model 1Model 2Model 3n (%)Model 1Model 2Model 3
Total sleep duration (h)MetSynReduced HDL cholesterol
<61,142 (28.8)1.14* (1.05–1.24)0.98 (0.90–1.06)0.97 (0.88–1.06)634 (16.0)0.95 (0.86–1.05)0.90 (0.82–1.00)0.88* (0.79–0.99)
6 to <72,020 (28.2)1.10* (1.03–1.18)1.02 (0.95–1.09)1.00 (0.93–1.08)1,152 (16.1)0.96 (0.88–1.04)0.93 (0.86–1.01)0.93 (0.85–1.01)
7 to <82,303 (26.2)1.001.001.001,467 (16.7)1.001.001.00
8 to <91,995 (28.8)1.14* (1.06–1.22)1.16* (1.08–1.25)1.16* (1.08–1.25)1,233 (17.8)1.08 (0.99–1.17)1.09* (1.01–1.19)1.07 (0.98–1.17)
≥9762 (29.6)1.18* (1.07–1.30)1.22* (1.11–1.35)1.21* (1.10–1.34)454 (17.7)1.07 (0.95–1.20)1.10 (0.98–1.23)1.05 (0.93–1.18)
Elevated blood pressureIFG
<62,216 (55.9)1.15* (1.06–1.24)0.96 (0.89–1.04)0.93 (0.85–1.01)1,623 (41.0)1.18* (1.09–1.27)1.07 (0.99–1.16)1.06 (0.99–1.16)
6 to <73,969 (55.4)1.12* (1.06–1.20)1.02 (0.96–1.09)1.00 (0.93–1.07)2,808 (39.2)1.10* (1.03–1.17)1.04 (0.97–1.11)1.01 (0.95–1.08)
7 to <84,609 (52.5)1.001.001.003,253 (37.1)1.001.001.00
8 to <93,720 (53.8)1.05 (0.99–1.12)1.04 (0.98–1.11)1.02 (0.95–1.09)2,737 (39.6)1.11* (1.04–1.19)1.11* (1.04–1.19)1.08* (1.01–1.16)
≥91,448 (56.3)1.16* (1.07–1.27)1.14* (1.04–1.25)1.08 (0.98–1.19)1,042 (40.5)1.16* (1.06–1.27)1.14* (1.05–1.25)1.08 (0.98–1.19)
Elevated triglyceridesCentral obesity
<61,331 (33.6)0.99 (0.92–1.07)0.97 (0.90–1.05)0.92 (0.84–1.00)1,479 (37.3)1.20* (1.11–1.30)1.01 (0.93–1.10)1.02 (0.94–1.11)
6 to <72,337 (32.6)0.95 (0.89–1.01)0.94 (0.88–1.00)0.90* (0.84–0.97)2,599 (36.3)1.15* (1.08–1.23)1.06 (0.99–1.13)1.04 (0.98–1.12)
7 to <82,966 (33.8)1.001.001.002,905 (33.1)1.001.001.00
8 to <92,499 (36.1)1.11* (1.04–1.18)1.11* (1.04–1.19)1.08* (1.01–1.16)2,309 (33.4)1.01 (0.95–1.08)1.05 (0.98–1.12)1.04 (0.97–1.12)
≥9960 (37.3)1.17 (1.06–1.28)1.18* (1.08–1.29)1.13* (1.02–1.24)888 (34.5)1.07 (0.97–1.17)1.15* (1.05–1.27)1.12* (1.01–1.23)
  • Data are ORs (95% CI) unless otherwise indicated. Participants are 29,333 Chinese adults aged ≥50 years from the GBCS, 2003–2008. Model 1 was unadjusted; model 2 was adjusted for age and sex; and model 3 was additionally adjusted for education, smoking, physical activity, diagnosed mental illness, insomnia, use of hypnotics, daytime sleepiness, alcohol consumption, snoring, and as appropriate, mean systolic blood pressure, glucose, total cholesterol, and triglycerides.

  • *P < 0.05.