Association between long-term exposure to ambient air pollution and obesity in a Chinese rural population: The Henan Rural Cohort Study

Feb 12, 2020Environmental pollution (Barking, Essex : 1987)

Long-term air pollution exposure linked to obesity in rural China

AI simplified

Circadian Biology on OpenScience ↗PubMed ↗DOI ↗

Abstract

A total of 38,824 participants were assessed for the association between long-term exposure to ambient air pollution and obesity in Chinese rural adults.

Long-term exposure to particulate matter and nitrogen dioxide is positively associated with obesity, regardless of obesity definition.
Increased levels of particulate matter and nitrogen dioxide correlate with higher body mass index, waist circumference, waist-to-hip ratio, waist-to-height ratio, body fat percentage, and visceral fat index.
Particulate matter shows the largest effects on obesity compared to other air pollution types.
Vulnerability to the effects of air pollution on obesity is greater among the elderly, women, individuals with lower education and income levels, and those with high-fat diets.
Sensitivity analysis indicates that the associations between ambient air pollution and obesity are consistent and robust.

AI simplified

Association between long-term exposure to ambient air pollution and obesity remains inconclusive, and the evidence from rural areas was limited. Thus, this study aimed to assess the association between ambient air pollution and obesity based on different anthropometric indices in Chinese rural adults, and further to compare the effect sizes of different air pollution types. A total of 38,824 participants (aged 18-79 years) were recruited from the Henan Rural Cohort Study. Logistic and multivariable linear regression model were used to examine the association between ambient air pollution exposure (including particulate matter with aerodynamic diameters ≤ 1.0 μm (PM), ≤2.5 μm (PM), and ≤10 μm (PM), and nitrogen dioxide (NO)) and obesity as well as obese anthropometric indices (including body mass index (BMI), waist circumference (WC), waist-to-hip ratio (WHR), waist-to-height ratio (WHtR), body fat percentage (BFP), and visceral fat index (VFI)). The potential effect modifications were also examined. Positive associations were found between long-term exposure to PM, PM, PMand NOand obesity regardless of how obesity was defined (false discovery rate (FDR) < 0.05). Moreover, BMI, WC, WHR, WHtR, BFP, and VFI displayed increased trends with PM, PM, PMand NOconcentrations increasing (all FDR<0.05). PMhad the largest effects on obesity among the four types of air pollution. The elderly, women, individuals with low level of education and income, and those who had high fat diet were more vulnerable to the adverse effects of air pollution. In addition, the results of the sensitivity analysis showed that those associations between ambient air pollution and obesity remained robust. These findings suggest that long-term exposure to ambient air pollutant (particularly PM) may be positively associated with obesity in Chinese rural adults, especially among the elderly, women, individuals with low education and income, as well as unhealthy lifestyles. 1 2.5 10 2 1 2.5 10 2 1 2.5 10 2 10 10

Full Text

Full text is available at the source.

View full text (XML) ↗View full text ↗

Association between long-term exposure to ambient air pollution and obesity in a Chinese rural population: The Henan Rural Cohort Study

Abstract

Full Text

You found one interesting study. We’ll send the next 7.

what lands in your inbox each week:

Recent issues from the circadian biology brief

Abstract

Full Text

Related papers

You found one interesting study. We’ll send the next 7.

what lands in your inbox each week:

Recent issues from the circadian biology brief