Developmental Motor Profile in Preschool Children with Primary Stereotypic Movement Disorder

Table 3

Comparison between SMD patients and controls.

	SMD patients	Controls
M/F ratio	22/4	23/4	Fisher’ exact= 1.000
Mean age at evaluation (months)	52.8	48.8	§p= 0.0624
MABC Total	7.1 ± 3.3	8.7 ± 2.7	§p= 0.0303; p= 0.0854
MABC Manual dexterity	7.± 3.6	7.1 ± 3.2	§p= 0.7744; p= 0.6913
MABC Balance	7.3 ± 3.1	10.3 ± 2.5	§p= 0.0001; p= 0.0007
MABC Ball skills	9.0 ± 3.7	13.5 ± 5.9	§p= 0.0038; p= 0.0075
VMI Total	99.2 ± 14.3	104.8 ± 10.9	§p= 0.1281; p= 0.2235
VMI Visual	108.1 ± 16.0	98.3 ± 14.7	§p= 0.0215; p= 0.0187
VMI Motor	86.8± 15.6	89.0 ± 15.4	§p= 0.7849; p= 0.1985

Standard scores.
§Mann-Whitney.
ANCOVA with group (SMD patients versus controls) as grouping factors and age at assessment as covariate; p refers to the effect of group.