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Table 2 Human chorionic gonadotropin (hCG) injected during embryo transfer compared to no injection for infertile women undergoing in vitro fertilisation cycles

From: Effect of intrauterine injection of human chorionic gonadotropin before embryo transfer on clinical pregnancy rates from in vitrofertilisation cycles: a prospective study

  Intervention group (hCG) n/N Control group n/N Relative risk 95% confidence intervals
Biochemical pregnancies 53/101 39/109 1.46 1.07 to 2.00
p 0.01
Clinical pregnancies 51/101 36/109 1.52 1.09 to 2.12
     p 0.01
  1. n outcome; N number of participants.