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Effects of exposure to outdoor light at night on blood lipids in China: a nationwide cross-sectional study
Outdoor light at night linked to blood fat levels across China
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Abstract
A sample of 10,894 adults showed that higher outdoor light at night exposure is associated with a 20% increased prevalence of .
- Increased exposure to outdoor light at night is linked to higher levels of LDL cholesterol, triglycerides, and lower levels of HDL cholesterol.
- Each increase in quintile of outdoor light at night exposure correlates with a rise in high LDL cholesterol (prevalence ratio of 1.10), high triglycerides (1.07), and low HDL cholesterol (1.11).
- The prevalence of dyslipidemia increased by 6% with each quintile increase in outdoor light exposure.
- The highest exposure group (fifth quintile) had a 20% higher prevalence of dyslipidemia compared to the lowest exposure group (first quintile).
- Long-term exposure to outdoor light at night may be detrimental to lipid metabolism in adults.
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Key numbers
1.10
Increased Prevalence of High LDL-cholesterol
Per quintile increase in outdoor LAN exposure.
1.20
Increased Prevalence of
Fifth quintile of LAN exposure vs. first quintile.
1.11
Increased Prevalence of Low HDL-cholesterol
Per quintile increase in outdoor LAN exposure.