Table 2.
Summary statistics and Pearson correlation coefficients for traffic-related long-term exposures for 3155 participants of the Heinz Nixdorf Recall Study.
| Exposure | Mean ± SD | IQR | PM2.5 | PNacc | NO2 | Lden | Lnight |
|---|---|---|---|---|---|---|---|
| PM10 (µg/m3)a | 20.2 ± 2.6 | 3.8 | 0.81 | 0.76 | 0.57 | 0.21 | 0.23 |
| PM2.5 (µg/m3)b | 16.7 ± 1.2 | 2.0 | 0.69 | 0.69 | 0.10 | 0.14 | |
| PNacc (#/mL)c | 3399 ± 382 | 520 | 0.69 | 0.20 | 0.21 | ||
| NO2 (µg/m3)d | 39.4 ± 4.0 | 5.3 | 0.18 | 0.21 | |||
| Lden (dB(A))e | 53.9 ± 9.3 | 14.4 | 0.99 | ||||
| Lnight (dB(A))f | 45.0 ± 9.1 | 13.7 | 1.00 |
PMx: particulate matter with an aerodynamic diameter < x µm; PNacc: particle number of accumulation mode particles; NO2: nitrogen dioxide; Lden: day-evening-night noise; Lnight: night-time noise; IQR: interquartile range. aPM10: particulate matter with an aerodynamic diameter <10 µm. bPM2.5: particulate matter with an aerodynamic diameter < 2.5 µm. cPNacc: particle number of accumulation mode particles. dNO2: nitrogen dioxide eLden: day-evening-night noise. fLnight: night-time noise; IQR: interquartile range.