Non-participation | Participation | ||
---|---|---|---|
(n = 7581) | (n = 1049) | p-value | |
Case–control status (%) | <0.001 | ||
Controls | 92.9 | 7.1 | |
Cases/dropouts | 79.6 | 20.4 | |
Sex (%) | <0.001 | ||
Boys | 91.3 | 8.7 | |
Girls | 83.7 | 16.3 | |
Age (mean) | 19.25 | 19.09 | <0.001 |
Mean house price (mean) | 145690 | 158380 | <0.001 |