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Table 2 The mean difference between different levels of serum prolactin compared to the basal level

From: Changes in serum prolactin level during intracytoplasmic sperm injection, and effect on clinical pregnancy rate: a prospective observational study

  Mean Prolactin level ng/ml Mean difference from basal PRL level ng/ml 95% confidence interval p-value
  Lower bound Upper bound
PRL before OPU 16.8 ± 11.6 3.1 ± 1.4 0.556 6.816 0.146
PRL after OPU 39.5 ± 25.4 25.8 ± 2.8 18.205 33.391 < 0.01*
PRL before ET 11.5 ± 10 2.2 ± 1.1 0.852 5.29 0.326
  1. Values are given as mean ± standard error (95% CI)
  2. *Statistically significant result p < 0.05
  3. (F = 406.9, p < 0.001)