Figure 3
The associations of (A) CO, (B) NO, (C) NO2, (D) NOX, (E) O3, (F) PM10, (G) PM2.5, and (H) SO2 values with fitted annual eGFR slope. Abbreviations: ppb, parts per million; ppm, parts per billion; μg/m3, micrograms per cubic meter; CO, carbon monoxide; NO, nitrogen monoxide; NO2, nitrogen dioxide; NOx, nitrogen oxide; O3, ozone; PM10, particulate matter < 10 μm in aerodynamic diameter; PM25, particulate matter < 2.5 μm in aerodynamic diameter; SO2, sulfur dioxide; eGFR, estimated glomerular filtration rate. Predicted values were generated by univariable general linear models with restricted cubic splines.
