The AQUA-FONTIS study: protocol of a multidisciplinary, cross-sectional and prospective longitudinal study for developing standardized diagnostics and classification of non-thyroidal illness syndrome

Table 3 Inclusion and exclusion criteria of the AQUA FONTIS study

Inclusion	Exclusion
Severe illness requiring intensive care	Substituted hypothyroidism (E03.0, E03.1, E03.3 E03.9, E89.0) or substitution in case of thyroid carcinoma (C73)
Stay of at least 24 hours at the ICU	Hyperthyroidism treated with thyrostatic agents and exhibiting a TSH level not below the reference region (E05.0 E05.9, E06.2)
	Manifest AIDS disease (B24)
	Pregnancy

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