TABLE 3.

Behavior, Visual Processing, Academic Achievement, and Intelligence Parameters Found to be Significantly Different Among the Three PWS Subject Groups (TI deletion, TII deletion, or UPD) With the Two Subject Groups Listed Having Significant Differences

Parameter	Group
Maladaptive behavior
SIB externalized maladaptive index	TI deletion vs TII deletion*
	TII deletion vs UPD*
SIB hurtful to self frequency	TII deletion vs UPD‡
SIB hurtful to self severity	TII deletion vs UPD†
Reiss self-injury	TII deletion vs UPD*
Adaptive behavior
SIB broad independence score	TI deletion vs TII deletion*
SIB motor skills	TI deletion vs TII deletion†
SIB social interaction and communication	TI deletion vs TII deletion†
SIB personal living skills	TI deletion vs TII deletion‡
	TII deletion vs UPD*
Obsessive-compulsive disorder
Y-BOCS control over compulsion	TI deletion vs TII deletion*
CBC interference with social	TI deletion vs TII deletion*
CBC interruption response-halts and resumes	TII deletion vs UPD*
CBC skin picking	TII deletion vs UPD*
Visual processing
Vineland Motor Inventory (raw score)	TI deletion vs TII deletion*
Vineland Motor Inventory (percentile)	TI deletion vs TII deletion*
	TII deletion vs UPD*
Vineland Motor Inventory (standard score)	TI deletion vs TII deletion†
	TII deletion vs UPD†
Academic achievement
Woodcock-Johnson reading cluster	TI deletion vs UPD*
Letter-word identification	TI deletion vs TII deletion*
Reading comprehension	TI deletion vs TII deletion*
Woodcock-Johnson math cluster	TI deletion vs TII deletion*
	TI deletion vs UPD*
Applied problems	TI deletion vs UPD*
Calculation	TI deletion vs TII deletion*
Intelligence
Verbal IQ	TII deletion vs UPD*
Information (standard score)	TI deletion vs UPD*
	TII deletion vs UPD‡
Vocabulary (standard score)	TII deletion vs UPD*
Object assembly (standard score)	TII deletion vs UPD*
Comprehension (standard score)	TII deletion vs UPD*

^*P < .05.

^†P < .01.

^‡P ≤ .001.