AI Article Synopsis
- The study examines how green space impacts mortality rates from Chronic Obstructive Pulmonary Disease (COPD) in Chongqing, China, using data from over 313,000 deaths from 2012 to 2020.
- Researchers discovered a non-linear relationship between green space, measured by Fractional Vegetation Cover (FVC), and COPD mortality rates with varied effects across different regions.
- The findings indicate that while 63% of areas show a positive correlation between green space and COPD mortality, 37% display a negative correlation, suggesting that green space may be a risk factor for COPD mortality in certain regions.
Article Abstract
Background: There are regional differences in the effect of green space on mortality of Chronic obstructive pulmonary disease (COPD). We conduct an ecological study, using the administrative divisions of Chongqing townships in China as the basic unit, to investigate the association between COPD mortality and green space based on data of 313,013 COPD deaths in Chongqing from 2012 to 2020. Green space is defined by Fractional vegetation cover (FVC), which is further calculated based on the normalised vegetation index (NDVI) from satellite remote sensing imagery maps.
Methods: After processing the data, the non-linear relationship between green space and COPD mortality is revealed by generalised additive models; the spatial differences between green space and COPD mortality is described by geographically weighted regression models; and finally, the interpretive power and interaction of each factor on the spatial distribution of COPD mortality is examined by a geographic probe.
Results: The results show that the FVC local regression coefficients ranged from - 0.0397 to 0.0478, 63.0% of the regions in Chongqing have a positive correlation between green space and COPD mortality while 37.0% of the regions mainly in the northeast and west have a negative correlation. The interpretive power of the FVC factor on the spatial distribution of COPD mortality is 0.08.
Conclusions: Green space may be a potential risk factor for increased COPD mortality in some regions of Chongqing. This study is the first to reveal the relationship between COPD mortality and green space in Chongqing at the township scale, providing a basis for public health policy formulation in Chongqing.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10024412 | PMC |
| http://dx.doi.org/10.1186/s12890-023-02359-x | DOI Listing |
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