Equivocal expression of emotions in children with Prader-Willi syndrome: what are the consequences for emotional abilities and social adjustment?

Table 1 Descriptive characteristics for the two PWS genetic subtype groups

	All PWS (N = 25)	PWS-DEL (N = 11)	PWS-UPD (N = 12)	Group equivalence test * Student t-test
CA
Mean (SD)	7;6 (1;6)	7;4 (1;5)	7;9 (1;9)	t₍₂₁₎ = 0.529; ns
Range	5;5–10;5	5;5–9;7	5;9–10;4	t₍₂₁₎ = 0.529; ns
DA
Mean (SD)	5;7 (1;5)	5;9 (1;7)	5;5 (1;4)	t₍₂₁₎ = 0.517; ns
Range	3;2–9;2	3;2–9;1	4;3–9;1	t₍₂₁₎ = 0.517; ns
IQ
Mean (SD)	75.7 (17.1)	78.4 (14.7)	72.9 (19.5)	t₍₂₁₎ = 0.751; ns
Range	44–103	52–94	44–103	t₍₂₁₎ = 0.751; ns

Legend. Means, ranges and SDs of chronological age (CA), intellectual developmental age (DA) and full-scale IQ (IQ) for the two PWS genetic subtype groups and results of group equivalence tests. ns: not significant, age: [years; months], PWS-DEL: PWS with deletion, PWS-UPD: PWS with mUPD

ISSN: 1750-1172