Table 1.

Reference values for TSH in the literature.

Author	Year	n	Population	TSH range
Baloch [2]	2003	Not given	Undefined (adults?)	Single value 2.5
Abalovich [3]	2007	Not given	Pregnancy oriented	Single value 2.5
Kratzsch [12]	2005	870	Healthy blood donors	0.3–3.63
Moncayo [13]	2007	2570	Adults	0.3–3.5
Langén [14]	2014	5709	General population	0.4–3.4
Moncayo [19]	2015	2028	Pregnant women	0.3–3.5
Kapelari [80]	2008	1209	Children	Age dependent