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Table 1 Baseline demographic characteristics of Noonan syndrome (NS) and Turner syndrome (TS) patients with complete 4-year longitudinal data (unadjusted data)

From: Noonan syndrome and Turner syndrome patients respond similarly to 4 years’ growth-hormone therapy: longitudinal analysis of growth-hormone-naïve patients enrolled in the NordiNet® International Outcome Study and the ANSWER Program

Baseline characteristic NS, mean ± SD TS, mean ± SD
  All patients GHD subseta All patients GHD subseta
N, Sex (male:female) N = 30 (24:6) n = 8 (7:1) N = 294 (0:294) n = 21
Age, years (range) 8.39 ± 3.45 (2.38–14.29) 8.97 ± 4.19 (2.38–14.04) 7.81 ± 3.22 (0.51–15.23) 8.22 ± 3.21 (3.08–14.45)
HSDS −2.64 ± 0.96 −2.61 ± 0.81 −2.67 ± 0.88 −2.84 ± 0.53
HSDS (Ranke)b [7, 19] −0.46 ± 0.89 −0.43 ± 0.85 0.30 ± 0.99 −0.07 ± 0.67
HSDS (Westerlaken) [21] NA NA −0.20 ± 1.01 −0.53 ± 0.71
HSDS (Cabrol) [20] NA NA −0.05 ± 1.03 −0.39 ± 0.70
Target HSDS −0.43 ± 0.83 −0.81 ± 0.75 (n = 6) −0.24 ± 1.02 −0.56 ± 0.89
TH-corrected HSDSc −2.19 ± 1.14 −1.70 ± 1.19 (n = 6) −2.46 ± 1.16 −2.27 ± 1.10
Bone age, years 6.92 ± 3.58 6.96 ± 4.92 (n = 6) 6.72 ± 3.03 7.56 ± 3.12 (n = 12)
Bone age – chronological age −1.61 ± 1.22 −2.08 ± 1.17 (n = 6) −1.31 ± 1.12 −1.49 ± 1.07 (n = 12)
Father’s height (cm) 176.19 ± 7.38 173.78 ± 6.71 (n = 6) 176.94 ± 7.89 172.85 ± 8.05
Mother’s height (cm) 161.53 ± 8.49 158.08 ± 4.96 (n = 6) 163.57 ± 6.96 162.18 ± 6.93
IGF-I SDS −1.42 ± 1.45 (n = 19) −2.52 ± 1.27 (n = 5) −0.89 ± 1.51 (n = 147) −1.21 ± 1.28 (n = 11)
  1. GHD Growth hormone deficiency, HSDS Height standard deviation score, NA Not applicable, TH Target height, SDS Standard deviation score
  2. aGHD defined by GH peak < 10 μg/L
  3. bHSDS (Ranke) NS vs TS mean difference –0.76 (95% confidence interval –1.13, –0.39); P < 0.001
  4. cTH-corrected HSDS refers to attainment of genetic height potential, i.e., parental-height-corrected HSDS – defined as HSDS minus target HSDS, during 4 years of GH treatment