Table 1.

Description of thyroid function traits.

Thyroid function traits	Consortium or study	Sample size	Population	Year
FT4	BHS, CHS, HBCS, KORA, NBS, Rotterdam Study, SardiNIA, SHIP/SHIP-Trend, TwinsUK, ASKLEPIOS, CARLA, EFSOCH, Health2006, SardiNIA2	26,089	Europeans	2018
TSH	BHS, CHS, HBCS, KORA, NBS, Rotterdam Study, SardiNIA, SHIP/SHIP-Trend, TwinsUK, ValBorbera, ASKLEPIOS, CARLA, EFSOCH, Health2006, SardiNIA2	27,916	Europeans	2018
TPOAb	ARIC, BHS, CHS, HBCS, KORA, NBS, RS, SardiNIA, SHIP, TwinsUK, Val Borbera, ASKLEPIOS, CARLA, EFSOCH, Health2006, SardiNIA2	18,297	Trans-ethnic	2015
FT3:FT4 ratio	Weston Area T3/T4 Study (WATTS) cohort, Exeter Family Study of Childhood Health (EFSOCH), Invecchiare in Chianti (InCHIANTI), Depression and Thyroid Disease (DEPTH)	3065	Trans-Ethnics	2008

ASKLEPIOS: The Asklepios Study; BHS: The 1994/1995 Busselton health survey; CHS: Cardiovascular Health Study; EFSOCH, Exeter family of childhood health; FT3: Free triiodothyronine; FT4: Free thyroxine; HBCS: Helsinki Birth Cohort Study; NBS: The Nijmegen Biomedical Study; SHIP: Study of Health in Pomerania; SIBLOS: The SIBLing Osteoporosis Study; TPOAb: Thyroid peroxidase antibodies; TSH: Thyrotropin.