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Table 2 In vitro fertilization and embryo transfer data between the TC and control groups

From: Analysis of in vitro fertilization/intracytoplasmic sperm injection outcomes in infertile women with a history of thyroid cancer: a retrospective study

Characteristics TC group
(N = 64)
Control group
(N = 320)
P value
Gonadotropin dose, median (IQR), IU 2175 (1500–2925) 2175 (1575–2850) 0.794
LH on hCG trigger day, median (IQR), mIU/ml 1.4 (0.8–3.1) 1.3 (0.7–2.8) 0.601
Estradiol on hCG trigger day, median (IQR), mIU/ml 5446 (3466–12,204) 6969.5 (4363.8–12,281.3) 0.121
Progesterone on hCG trigger day, median (IQR), pmol/L 2.1 (1.5–3.1) 2.3 (1.6–3.1) 0.458
No. of retrieved oocytes per cycle, median (IQR) 9 (6–14) 12 (8–17) 0.025*
Fertilization, no. (%)
 IVF 36 (56.3) 223 (69.7) 0.036*
 ICSI 28 (43.8) 97 (30.3)
High-quality embryos, median (IQR)a 3 (2–5.8) 4.5 (2–8) 0.046*
No. of embryos transferred, No. (%)
 1 15 (23.4) 52 (16.3) 0.212
 2 48 (75.0) 267 (83.4)
 3 1 (1.6) 1 (0.3)
  1. Abbreviations: IQR interquartile range, GnRH gonadotropin-releasing hormone, HCG human chorionic gonadotropin, ICSI intracytoplasmic sperm injection, IVF in vitro fertilization
  2. * P < 0.05
  3. a Embryos were evaluated on the third day after fertilization. Good-quality embryos all developed from two pronuclei zygotes and met the following criteria: (1) had > 5 blastomeres; (2) the size difference was < 20%; and (3) fragmentation was < 50%