Table I.

Baseline study group characteristics

Gender	%	Age[years]	BMI[kg/m2]	TSH[μIU/ml]	fT3[pmol/l]	fT4[pmol/l]	eGFR[ml/min/ 1.73 m2]	GGTP[U/l]	Total bilirubin[μmol/l]	ALT[U/l]	AST[U/l]
Females	74	23 ±1.9	20.9 ±2.4	2.7 ±1.4	16.4 ±0.5	5.1 ±0.8	113 ±13	17 ±8	12.5 ±5	23 ±2	16 ±2
Males	26	23.5 ±3.2	24.0 ±2.4	2.6 ±0.9	17.0 ±3.1	5.3 ±0.8	108 ±14	19 ±8	15.6 ±7	33 ±23	27 ±19

BMI – body mass index, TSH – thyroid-stimulating hormone, fT3 – free triiodothyronine, fT4 – free thyroxine, eGFR – estimated glomerular filtration rate, GGTP – γ-glutamyl transpeptidase, ALT – alanine transaminase, AST – aspartate transaminase.