Table 4. Clinical data and hormonal profiles of infertile euthyroid women according to clinical pregnancy outcomes.
Characteristics * Clinical Pregnancy p -value
No Yes
n 231 (54%) 197 (46%) -
Female age (years) 36 [32 - 39] 34 [32 - 37] 0.007ª
BMI (kg/cm2) 23.23 [21.71 - 25.63] 22.83 [21.22 - 24.64] 0.135ª
Time trying to conceive (months) 24 [12 - 48] 24 [12 - 39] 0.867ª
Baseline FSH (UI/mL) 6.47 [5.31 - 7.70] 6.60 [5.30 - 7.91] 0.659ª
LH (mUI/mL) 5.20 [3.79 - 6.70] 5.91 [4.39 - 7.55] 0.011ª
Estradiol (pg/dL) 48.30 [34.00 - 72.00] 46.63 [32.05 - 71.05] 0.438ª
Prolactin (ng/mL) 13.00 [9.30 - 17.90] 13.40 [9.17 - 17.48] 0.684ª
TSH (mUI/mL) 1.80 [1.13 - 2.46] 1.71 [1.23 - 2.35] 0.783ª
FT4 (ng/dL) 1.14 [1.00 - 1.29] 1.14 [1.02 - 1.25] 0.534ª
Thyroid Peroxidase Antibody positive (n, %) 28 (12.1%) 30 (15.2%) 0.396 b
Oocytes retrieved (n) 8 [4 - 12] 10 [6 - 15] <0.001 b
MII oocytes (n) 6 [3 - 10] 8 [5 - 12.5] <0.001 b
Embryos (n) 3 [2 - 5] 5 [3 - 7] <0.001 b
Embryos transferred (n) 2 [1 - 2] 2 [1 - 2] <0.001 b

*Qualitative variables are presented as absolute and relative frequencies and quantitative variables as median and interquartile interval (IQR). BMI, Body Mass Index; FSH: Follicle-stimulating hormone; LH: Luteinizing hormone; TSH, thyroid-stimulating hormone; FT4, free Thyroxine MII: Metaphase II oocytes.