Correlation analyse between thyroid hormone levels and severity of schizophrenia symptoms

Table 2 Comparison of thyroid hormone levels (mean ± SD)

Grouping	T3 (nmol/L)	T4 (nmol/L)	FT3 (pmol/L)	FT4 (pmol/L)	TSH (mIU/L)	Cortisol (mmol/L)
Control group (n = 55)	2.04 ± 0.53	118.66 ± 17.44	4.60 ± 0.50	16.51 ± 2.20	3.10 ± 0.90	3.23 ± 0.09
Schizophrenia group (n = 100)	1.77 ± 0.58	98.78 ± 16.30	4.35 ± 0.60	13.40 ± 2.19	2.08 ± 0.85	6.50 ± 1.30
t	2.856	7.086	2.783	8.442	7.002	25.066
P value	0.005	< 0.001	0.006	< 0.001	< 0.001	< 0.001

T3: Triiodothyronine; T4: Thyroxine; FT3: Free triiodothyronine; FT4: Free thyroxine; TSH: Thyroid stimulating hormone.