Table 2.

Overview of available data.

Sample	Country	N	N males	N females	Age (M±SD)	Year collected	Questionnaire	Genotyping platform
YFS	Finland	1,382	634	748	32.5 (±5.1)	2001	TCI, 240 rating scale items	Illumina 670K Custom BeadChip
HBCS	Finland	1,441	578	863	63.4 (±2.9)	2004	TPQ, 98 dichotomous items	Illumina 610K Quad Chip
NFBC	Finland	4,506	2,013	2,493	31†	1997	TPQ, 107 dichotomous items	Illumina 370duo Chip
QIMR	Australia	5,530	2,006	3,524	36.7 (±12.3)	1988–1990	TPQ, 54 dichotomous items	Illumina 317K Illumina HumanCNV370-Quadv3
								Illumina Human610-Quad
Total		12,859	5,231	7,628

^†all participants in the NFBC sample were 31 years old