Description of the study populations
| The Netherlands cohort | The LISA-Munich cohort | ||||
|---|---|---|---|---|---|
| Frequencies n/N | Prevalence % | Frequencies n/N | Prevalence % | ||
| Parental education* | |||||
| Low | 188/2626 | 7.2 | 23/673 | 3.4 | |
| Medium | 760/2626 | 28.9 | 101/673 | 15.1 | |
| High | 1678/2626 | 63.9 | 546/673 | 81.5 | |
| Degree of urbanisation | |||||
| Strongly urbanised 1 | 297/2633 | 11.3 | |||
| Urban 2 | 782/2633 | 29.7 | |||
| Moderately urban 3 | 615/2633 | 23.4 | |||
| Slightly urban 5 | 519/2633 | 19.7 | |||
| Non-urban 5 | 420/2633 | 16.0 | |||
| Total traffic (subjective assessment) | |||||
| None/not many/low | 1115/2633 | 42.4 | 407/673 | 60.5 | |
| Moderate/medium | 926/2633 | 35.2 | 163/673 | 24.2 | |
| Many/high | 592/2633 | 22.5 | 103/673 | 15.3 | |
| Modelled exposure (GIS data) | GM (N = 2633) | (GSD) | GM (N = 673) | (GSD) | |
|---|---|---|---|---|---|
| Categories in first row for Dutch cohort, categories after slash for Munich cohort. | |||||
| *Highest achieved level by father or mother. | |||||
| PM2.5 (μg/m3) | 16.7 | (1.1) | 13.3 | (1.1) | |
| PM2.5 abs (10−5m−1) | 1.65 | (1.27) | 1.73 | (1.17) | |
| NO2 (μg/m3) | 23.7 | (1.4) | 27.1 | (1.2) | |