Short sleep duration (<6 hours) is positively associated with the number of (MetS) diagnostic components.
A total of 680 participants (15.6%) reported sleeping less than 6 hours.
The analysis identified male sex, age, physical activity level, and alcohol intake as independent factors influencing the number of MetS components.
Those with shorter sleep durations exhibited a greater number of MetS diagnostic components.
The association between short sleep duration and obesity components was consistent with overall findings.
Simplified
OBJECTIVE: To examine the relation between sleep duration and (MetS).
METHODS: We examined the baseline data from 4356 healthy workers (3556 men and 800 women) aged 19-69 years. The physical activity of each participant was classified according to the International Physical Activity Questionnaire (IPAQ). We defined four components of MetS diagnostic components in this study as follows: 1) high blood pressure (BP) systolic BP [SBP] ≥ 130 mmHg, or diastolic BP [DBP] ≥ 85 mmHg, or on medication; 2) dyslipidemia (high-density lipoprotein-cholesterol concentration <40 mg/dL, or triglycerides concentration ≥150 mg/dL, or on medication; 3) impaired glucose tolerance (fasting blood sugar concentration ≥ 110 mg/dL, or if less than 8 hours after meals ≥ 140 mg/dL), or on medication; and 4) overweight (body mass index [BMI] ≥ 25 kg/m(2)), or obesity (BMI ≥ 30 kg/m(2)). There were 680 participants in the group, with sleep duration <6 hours (15.6%).
RESULTS: Those who had 0-4 MetS diagnostic components, including overweight, accounted for 2159, 1222, 674, 255, and 46 participants, respectively, in the Poisson distribution. Poisson regression analysis revealed that independent factors that contributed to the number of MetS diagnostic components were being male (regression coefficient b = 0.752, P < 0.001), age (b = 0.026, P < 0.001), IPAQ classification (b = -0.238, P = 0.034), and alcohol intake (mL/day) (b = 0.018, P < 0.001). Short sleep duration (<6 hours) was also related to the number of MetS (b = 0.162, P < 0.001). The results of analyses with obesity component showed a similar association.
CONCLUSION: Short sleep duration was positively associated with the number of MetS diagnostic components independent of other lifestyle habits.
Key numbers
680
Participants with <6 hours sleep
Out of 4356 total participants
0.162
Increase in components
Regression coefficient for <6 hours sleep duration
1.90
Obesity risk increase
Odds ratio for obesity with <6 hours sleep
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