| TWAa < 10 µg/l | TWA ≥ 10 µg/l | p-value** |
---|---|---|---|
Total | 17,139 | 13,730 | Â |
Gender | |||
 Men | 8400 (56.1) | 6552 (43.8) |  |
 Women | 8739 (54.9) | 7178 (45.1) | 0.120 |
Mean age (years) | 40.1 | 41.9 | 0.098 |
Socio-economic status | |||
 High | 9746 (57.6) | 7183 (42.4) |  |
 Medium | 4594 (69.5) | 2012 (30.5) |  |
 Low | 2687 (37.3) | 4512 (62.7) |  < 0.001 |