Table 1.
Characteristics of the studies
| GSMS | CHDS | VTSABD | |
|---|---|---|---|
| Representative population sample? | Y | Y | Y (twins) |
| Number of data waves | 7–10 | 22 | 5 |
| Age range from start to most recent wave | 9–26 | birth-30 | 8–30 |
| Total phenotyped subjects | 1415 | 1265 | 2588 |
| Total phenotype repeated observations | 9437 | 6921 | 5837 |
| Assessment instruments | CAPA; YAPA | DISC; RAPI; CIDI | CAPA; YAFU |
| DNA source | Dried Bloodspots | Whole Blood | Whole Blood |
| Subjects removed during quality control | 94 | 22 | 17 |
| Total number of subjects included in genome-wide association testing | 784 | 739 | 603 |
| Genotyping Platform | Illumina 660W-Quad v1 DNA Analysis BeadChip | Illumina 660W-Quad v1 DNA Analysis BeadChip | Illumina 660W-Quad v1 DNA Analysis BeadChip |