Table 2.

Summary of the studies reporting data on thyroid volume in overweight/obesity

First Author (ref)	Year	Country	Study group (n)	Study group iodine status	Main finding(s)
Sari R [30]	2003	Turkey	Pre-menopausal obese women (n = 98)	NA	higher TV and goiter prevalence in obese women; not significant change in TV for > 10% weight loss
Eray E [31]	2011	Turkey	Pre-menopausal obese women (n = 98)	sufficient	-ve relationship between TV and UIC; no significant association between TV and weight loss
Méndez-Villa L [32]	2016	Mexico	Schoolchildren (n = 673)	more than adequate	higher iodine intake and TV in OW than in AW children
De Angelis S [13]	2021	Italy	Schoolchildren (n = 1595)	sufficient/ mildly deficient	TV distribution in AW children significantly lower in comparison to TV distribution in OB children, irrespective of the iodine status.

NA not assessed, TV thyroid volume, −ve negative, AW adequate weight, OW overweight, OB obese