Table 1

Median (and range) of plasma 17-OHP, androstenedione, testosterone, and mean (SE) of growth hormone and IGF-I concentrations in 22 prepubertal and four pubertal children with CAH randomly treated with hydrocortisone, 15 or 25 mg/m2daily for two consecutive six month periods

17-OHP (nmol/l)Androstenedione (nmol/l)Testosterone (nmol/l)Growth hormone (μg/l)IGF-1 (μg/l)
PeakIncrement< 6 years6-12 years> 12 years
Hydrocortisone 15 mg/m2 13.8 (1.8) (n=50)9.6 (2) (n=50)93.1 (14.9) (n=16)320 (39.9) (n=8)265 (25) (n=2)
 Prepubertal (n=44)113.71-150 (0.5–1207.5)3.41-150(0.5–40.2)2.5 (0.8–9.1)
 Pubertal (n=8)91.7 (6.8–453)11 (6.1–41.9)4.7 (3.9–6.9)
Hydrocortiscone 25 mg/m2 14.9 (1.5 (n=51)6.9 (3) (n=51)118.2 (20.6) (n=15)310 (36.8) (n=8)270 (30) (n=2)
 Prepubertal (n=44)11.51-150 (0.6–819.9)1.61-150(0.1–31.8)2.3 (1.2–11.3)
 Pubertal (n=8)314.2 (66.5–568.7)22.3 (10.5–47.5)6.2 (3.5–9.2)
  • 1-150 p < 0.05, comparing 15mg/m2 with 25 mg/m2; n refers to the number of determinations.

  • Reference values: 17–OHP < 3 nmol/l; androstenedione < 1.8 nmol/l; testosterone < 1.7 nmol/l; growth hormone increment > 10 μg/l; IGF–1: < 6 years, 40–180 μg/l; 6–12 years, 70–250 μg/l; >12 years, 100–390 μg/l.