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Table 3 Gonadotropin levels in patients with ICPP with a normal karyotype (adapted from Pigneur et al. [15]) and ICPP in cases with KS

From: Idiopathic central precocious puberty in a Klinefelter patient: highlights on gonadotropin levels and pathophysiology

  LH
(UI/l)
LH
Post-GnRH
(UI/l)
FSH
(UI/l)
FSH
Post-GnRH
(UI/l)
T (ng/ml)
ICPP (Pigneur et al. 2008) (28 patients) (Mean ± SD)[15] 1.1 ± 0.6 15.5 ± 0.8 2.7 ± 1.5 5.7 ± 3.9 2.6 ± 2.1
ICPP+KS (8 cases) (5–9 years) (Mean ± SD)
Review of cases in the present study
9.4 ± 12 58 ± 48 23.1 ± 38.5 49.1 ± 62.1 3.1 ± 1.3
  1. ICPP Idiopathic central precocious puberty, KS Klinefelter syndrome, FSH Follicle stimulating hormone, LH Luteinizing hormone, GnRH Gonadotropin-releasing hormone, SD Standard deviation, T Testosterone levels. Data are presented as mean ± SD