The Impact of Preconceptional Serum TSH Levels between 2.5 and 4.0 mIU/L on Infertile Women Going through Their First IUI Treatment Cycle

Table 3

Clinical outcomes of IUI in patients with different TSH levels.

		AID					AIH
		Natural cycle	Stimulated cycle	Primary infertility	Secondary infertility		Natural cycle	Stimulated cycle	Primary infertility	Secondary infertility
Implantation rate	TSH [0.4, 2.5)^a	81/200	44/98	98/228	27/70	125/298	36/295	56/257	56/323	36/229	92/552
	TSH [2.5, 4.0)^a	53/149	30/77	68/185	15/41	83/226	23/214	43/196	38/239	27/170	65/409
		0.324	0.43	0.199	0.835	0.242	0.613	0.949	0.652	0.965	0.791
Clinical pregnancy rate	TSH [0.4, 2.5)^a	76/200	43/98	94/228	25/70	119/298	29/295	47/257	47/323	29/229	76/552
	TSH [2.5, 4.0)^a	49/149	28/77	63/185	14/41	77/226	22/214	35/195	33/239	24/170	57/409
		0.349	0.315	0.135	0.867	0.173	0.876	0.926	0.803	0.672	0.94
Miscarriage rate	TSH [0.4, 2.5)^a	10/76	6/43	13/94	3/25	16/119	6/29	6/47	5/47	7/29	12/76
	TSH [2.5, 4.0)^a	3/49	3/28	4/63	2/14	6/77	7/22	5/35	8/33	4/24	12/57
		0.208	1.000	0.127	0.838	0.254	0.366	0.842	0.104	0.502	0.498

^amIU/L. AIH : artificial insemination by husband; AID : artificial insemination by donor.