Associations of Residential Long-Term Air Pollution Exposures and Satellite-Derived Greenness with Insulin Resistance in German Adolescents

http://dx.doi.org/10.1289/ehp.1509967



Table 3. Spearman correlation of the untransformed exposures within the Munich study area (lower triangle) and Wesel study area (upper triangle).
Exposure NDVI (500 m) (NDVI units) NDVI (1,000 m) (NDVI units) NO2
(μg/m3)
PM10 (μg/m3) PM2.5 (μg/m3) PM2.5 absorbance (10–5/m)
All correlations were statistically significant (p < 0.05) except between PM2.5 absorbance and NDVI (500 m and 1,000 m) in Munich and between PM2.5 and NDVI (1,000 m) in Munich.
NDVI (500 m) (NDVI units) 1 0.86 –0.58 –0.71 –0.54 –0.6
NDVI (1,000 m) (NDVI units) 0.91 1 –0.65 –0.82 –0.64 –0.72
NO2 (μg/m3) –0.40 –0.45 1 0.75 0.71 0.76
PM10 (μg/m3) –0.32 –0.30 0.57 1 0.76 0.90
PM2.5 (μg/m3) –0.15 –0.07 0.17 0.36 1 0.71
PM2.5 absorbance (10–5/m) –0.07 –0.06 0.42 0.66 0.38 1