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Table 2 Comparison of treatment characteristics and pregnancy outcomes between the two study groups

From: Impact of preconceptional serum thyroid stimulating hormone values ranging between 2.5 and 4.5 mIU/L on live birth rates following ovulation induction and intrauterine insemination treatment for unexplained infertility

  TSH 0.27–2.5 mIU/L
n = 543
1110 cycles
TSH 2.51–4.5
n = 183
355 cycles
 
Duration of ovulation induction (days)* 9 (5–12) 9 (5–11) 0.34
Total gonadotrophin dose used (IU)* 525 (262.5–5625) 546 (130–6950) 0.37
Number of follicles > 17 mm on triggerday, n* 1 (0–6) 1 (0–6) 0.65
Clinical pregnancy, n (%cycle) 96 (8.6%) 28 (7.9%) 0.74
Live birth, n (%cycle) 90 (8.1%) 25 (7.1%) 0.38
Miscarriage rate(cycle %) 6 (6.25%) 3 (10.7%) 0.46
  1. TSH, thyroid stimulating hormone; FSH: follicle stimulating hormone; LH: luteinizing hormone
  2. *Values are median (25th–75th percentile)