Study On The Relationship Between Residential Greenness With Overweight And Obesity In Liaoning Province

Objective: With the rapid development of urbanization and the prevalence of obesity,more and more attention has been paid to the relationship between the residential greenness and overweight and obesity.Most studies focus on the economically developed countries and regions,few studies also focus on the economically underdeveloped rural areas.This study also included urban and rural areas to explore the impact of residential greeness on overweight and obesity.Methods:In this study,the residents of urban and rural communities in Liaoning Province were selected as the investigation subjects by multistage sampling.The height,weight and waist circumference data of 4746 subjects were collected through questionnaires,and the body mass index(BMI,kg /m~2)、 Waist circumference(WC,cm)、waist to height ratio(WHt R)、 body roundness index(BRI)and clinica universidad denavarra-body adiposity estimator(CUN-BAE)are used to assess overweight and obesity of the study subjects.NDVI(Normalized Difference Vegetation Index)as the satellite remote sensing data is used to assess the residential greenness.In this study,age,gender,nationality,urban and rural areas,education level,per capita annual household income,smoking,drinking,and physical activity were taken as control variables.The data were processed and analyzed using IBM SPSS 23.0 and R4.1.0 software.Results: After controlling for different covariates,the results showed that the residential greenness was negatively correlated with BMI,WC,WHTR,BRI,CUN-BAE(P < 0.05),and the model was robust.In the interaction analysis,residential greenness had interaction with age,sex and education level(P < 0.05).The results of stratified analysis showed that residential greenness was more negatively correlated with BMI and CUN-BAE in women and people aged ≥ 60 years(P<0.05).The negative correlation between residential greenness and WC,WHt R and BRI was greater in men and people aged < 60 years(P<0.05).In urban population,residential greenness was significantly negatively correlated with WC,WHt R and BRI(P<0.05),but not with BMI and CUN-BAE(P>0.05).Among rural residents,residential greenness was more negatively correlated with BMI,WC,WHt R,BRI and CUN-BAE.Rresidential greenness was more negatively correlated with BMI,WC,WHt R,BRI and CUN-BAE in people with primary school education and below(P<0.05).Conclusion:Residential greenness has a negative impact on BMI,WC,WHTR,BRI and CUN-BAE.Improving residential greenness can reduce the risk of overweight and obesity.Women and people aged less than 60 years old are more sensitive to the impact of living environment greening on BMI and CUN-BAE,while men and people aged more than 60 years old are more sensitive to the negative impact of living environment greening on WC,WHt R and BRI.The population with lower education level is the sensitive population whose residential greenness has a greater negative impact on BMI,WC,WHTR,BRI and CUN-BAE.