Age Bins: | 8 to 12Â years | 13 to 14Â years | 15 to 16Â years | 17 to 28Â years | ||
---|---|---|---|---|---|---|
Total number of observations | 1492 | 1552 | 1683 | 959 | ||
Number of repeated observations excluded (same participant with two questionnaires in age bin) | 53 | 154 | 108 | 25 | ||
Number of observations from identical triplet or extra siblings (excluded) | 57 | 27 | 67 | 47 | ||
Final sample size (individuals) for genetic analyses | 1382 | 1371 | 1508 | 887 | ||
Incl. | N complete twin pairs | 634 | 603 | 670 | 242 | |
Incl. | N MZ pairs | 226 | 209 | 230 | 96 | |
N DZ pairs | 408 | 394 | 440 | 146 | ||
N extra sibling | 84 | 114 | 89 | 62 | ||
N twin-sibling pair | 1 | 1 | 0 | 23 | ||
N singletons | 28 | 49 | 79 | 295 | ||
Incl. | N twins | 8 | 8 | 15 | 96 | |
N siblings | 20 | 41 | 64 | 199 | ||
Mean age (SD) [range] | ||||||
% Females | 50% | 50% | 54% | 58% |