Table 1.

Clinical characteristics of each AITD study group

	n	Age (years)	Free T4 (ng/dl)	Free T3 (pg/ml)	TSH (mU/ml)	TRAb (%)
Normal range			0·97–1·79	2·47–4·34	0·34–3·5	<15
Graves’ disease groups
Thyrotoxic
Untreated	4	46·3 ± 8·2	2·87 ± 0·79**	5·75 ± 3·72**	–	44·3 ± 27·4†
Euthyroid
Seriously intractable	26	44·1 ± 15·4	1·45 ± 0·68	3·51 ± 1·53	1·54 ± 2·04	32·7 ± 27·9†
Intractable	14	39·8 ± 10·8	1·14 ± 0·23	2·97 ± 0·29	2·75 ± 2·42	8·3 ± 5·9
In remission	25	45·5 ± 13·4	1·20 ± 0·19	3·03 ± 0·35	1·61 ± 0·99	2·5 ± 4·4
Hashimoto's disease groups
Euthyroid
Severe	32	58·0 ± 8·9*	1·50 ± 0·37	3·15 ± 0·44	1·44 ± 2·74	ND
Mild	16	49·8 ± 13·1	1·00 ± 0·24	3·11 ± 0·31	2·57 ± 1·67	ND

AITD, Autoimmune thyroid disease; - Not detected; ND, Not done;

^*P < 0·05 vs. other groups;

^**P < 0·01 vs. other groups;

^†P < 0·01 vs. intractable GD, GD in remission, and HD groups