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Table 3 Characteristics of female partners in the 2 groupsa

From: Males with low serum levels of vitamin D have lower pregnancy rates when ovulation induction and timed intercourse are used as a treatment for infertile couples: results from a pilot study

  GROUP 1 GROUP 2 P Value
Normal Vit D Low Vit D
Number of Couples 36 54 n.s.
Age (years) 30.1 ± 2.57 29.5 ± 2.57 n.s.
Duration of infertility (months) 28.5 ± 4.53 29.1 ± 2.57 n.s.
Serum estradiol (pg/mL)b 291.2 ± 31.73 293.1 ± 19.81 n.s.
Follicle diameter (mm) 18.2 ± 1.28 18.0 ± 1.34 n.s.
Body mass index (kg/m2) 20.8 ± 1.14 21.1 ± 1.37 n.s.
  1. aValues are mean ± SD
  2. bOn the day of hCG administration. Conversion factor to SI unit = 3.671