Table 1 (abstract P60). Milestone acquisition ages in the sample and in the two subgroups

N° of subjects

36

18

18

Mean Age of the sample (years) (SD)

14.21 (3.22)

14.77 (3.78)

13.64 (2.52)

Age Range of the sample (years)

6.4 - 21.3

6.4 - 21.3

6.4 - 16.8

Standing Acquisition mean (months) (SD)

10.92 (3.56)

10.67 (3.12)

11.17 (4.03)

11 (1.9)

Standing acquisition range (months)

6-24

8-18

6-24

Walking acquisition mean (months) (SD)

16.4 (5.55)

16.25 (6.55)

16.56 (4.53)

12.1 (1.8)

Walking acquisition range (months)

9-30

9-30

9-24

Running acquisition mean (months) (SD)

12-72

12-36

15-72