Table 1.

Demographic Data of the Participants

	PWS		Control	P value
	DEL	mUPD
Age (years)	14.4 (4.1)	11.8 (3.5)	11.7 (2.6)	<.05
Age range (years)	8.4–23.1	6.9–18.4	7.1–17.9
Sample size (N)	15	13	61
Gender (N)				ns
Male	7	3	28
Female	8	10	33
Age at start of GH treatment	6.6 (3.5)	4.6 (2.9)	n/a	ns
Total IQ score	68.6 (14.6)	70.4 (12.8)	n/a	ns
Verbal IQ	3.9 (3.2)	4.5 (2.7)	n/a	ns
Performance IQ	4.7 (2.6)	4.8 (2.7)	n/a	ns
Psychiatric history	0	2a	n/a
Use of psychotropic medication	0	0	n/a

Note: n/a, not applicable.

^aTwo children were diagnosed with autism spectrum disorders prior to MRI study.