Table 5.

Correlations between salivary and serum levels of hormones for subgroups of patients with hypothyroidism, dependent on LT₄ therapy.

LT4 therapy	ECLIA-Cobas		CLIA-LIAISON
	fT4 [pmol/L]
	R s	p-Value	R s	p-Value
Salivary fT4 [pg/mL]
Yes N = 32	0.307	0.113	0.124	0.530
No N = 10	0.898	0.002 a	0.849	0.004 a
	fT3 [pg/mL]
	R s	p-Value	R s	p-Value
Salivary fT3 [pg/mL]
Yes N = 32	0.271	0.163	0.156	0.429
No N = 10	0.898	0.002 a	0.728 a	0.026 a

^ap-value < 0.05.

TSH, thyroid stimulating hormone; fT4, thyroxine; fT3, tri-iodothyronine; LT4 levothyroxine; ECLIA-Cobas, electrochemiluminescence (ECLIA) immunoassays Elecsys^® Cobas e801, Roche; CLIA-LIAISON, chemiluminescence immunoassay (CLIA) LIAISON XL^®, DiaSorin; R_s, Spearman’s correlation coefficients.