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Table 2 Baseline characteristics for the high risk patients who injected hCG (n = 353) and either developed (n = 40) or did not develop severe OHSS (n = 313)

From: Outpatient management of severe early OHSS by administration of GnRH antagonist in the luteal phase: an observational cohort study

  N = 313 patients without severe OHSS N = 40 patients with severe OHSS p
Age (years) 32.6 ± 4.4 32.7 ± 4.0 0.960
BMI (kg/m2) 23.8 ± 4.8 24.8 ± 5.2 0.896
Duration of infertility (years) 3.8 ± 3.8 10.6 ± 1.4 0.958
Number of previous IVF attempts 1.1 ± 1.8 1.18 ± 1.93 0.084
Baseline FSH (IU/l) 6.7 ± 1.6 5.3 ± 1.4 0.008
Baseline LH(IU/l) 5.4 ± 2.5 5.6 ± 2.2 0.229
Baseline oestradiol (pg/ml) 32.9 ± 14.5 51.8 ± 27.0 0.652
Baseline progesterone (ng/ml) 0.51 ± 0.28 0.45 ± 0.23 0.157
Baseline TSH (mIU/ml) 1.7 ± 0.99 1.71 ± 0.92 0.763
Baseline prolactin (ng/ml) 16.7 ± 11.3 16.2 ± 10.5 0.566
  1. Values are expressed as mean ± standard deviation (SD) unless otherwise stated. P-values in bold depict statistical significance (p < 0.05).