Table 2.

Correlations between thyroid stimulating hormone (TSH) and thyroid hormones

	free triiodothyronine (free T3)		free thyroxine (free T4)
	r	(p)	r	(p)
Total
Number at risk	1724
Simple	-0.10	<0.001	-0.15	<0.001
Partial	-0.09	<0.001	-0.15	<0.001
Thyroid cyst (-)
Number at risk	1160
Simple	-0.13	<0.001	-0.18	<0.001
Partial	-0.12	<0.001	-0.18	<0.001
Thyroid cyst (+)
Number at risk	564
Simple	-0.03	0.525	-0.09	0.030
Partial	-0.03	0.418	-0.09	0.030

Partial correlation analysis is adjusted for sex and age. Logarithmic transformation was used for TSH.