Table 3 Biochemical data of NF1 patients and controls

Serum-corrected Calcium (mg/dL, nv 8.5–10.5)

9.27 ± 0.23

9.16 ± 0.43

ns*

Phosphorus (mg/dL)

4.56 ± 0.54

4.61 ± 0.49

ns*

Alkaline phosphatase (IU/L, nv 62–100)

184.6 ± 88.2

198.8 ± 44.1

ns*

Alkaline phosphatase SD^a

-0.95 (-1.34; -0.44)

-0.76 (-1.43; -0.20)

ns°

25OHvitD^c (ng/dL)

30.6 ± 9.9

24.5 ± 8.2

ns*

TmP/GFR^d

1.63 ± 0.30

1.56 ± 0.32

ns*

FGF23^e intact (pg/mL)

41.6 ± 13.9

49.3 ± 12.2

ns*

FGF23^e c-terminal (RU^f/mL)

59.2 (48; 73.1)

62.1 (56.2; 72.2)

ns°

αKlotho (pg/mL)

2132.2 (1678.6; 2973.6)

2578.1 (2182.6; 3228.5)

ns°