Appendix B

The content in this publication was current at the time it was published, but it is not being updated. The publication is provided for historical purposes only.

Table 7. Adult Test Scores for PKUCS Subjects Grouped by Age at Diet Discontinuation (Values tabulated are mean ± s.d.)

* Change from 12-year WISC-R or WRAT score

** p-values are for illustration only, due to small sample sizes

Diet Discontinued Before 6.5 yrs.
	- WAIS-R -				- WRAT 3 -
	n	Verbal	Perform	Full	n	Reading	Spelling	Arithmetic
Parent IQ	31			106±11
Adult Score	33	91±11	96±14	92±13	31	95±12	95±14	93±15
Change*	26	-2	+1	-1	24	-1	+4	+10
p**		0.33	0.76	0.54		0.59	0.08	0.0001
Diet Discontinued 6.5 - 12.5 years
Parent IQ	12			110±7
Adult Score	13	93±15	98±22	95±19	12	97±17	97±16	90±16
Change*	10	-1	-2	-2	9	0	+1	+10
p**		0.59	0.60	0.50		0.86	0.66	0.02
Diet Discontinued 12.5 - 20 yrs.
Parent IQ	11			107±16
Adult Score	11	97±14	102±17	99±16	7	96±24	97±24	93±23
Change*	9	+4	+3	+3	5	-5	-3	+10
p**		0.28	0.39	0.44		0.07	0.54	0.004
Never Off Diet
Parent IQ	7			111±7
Adult Score	7	108±11	103±17	108±9	7	107±6	109±5	98±6
Change*	6	+10	+2	+8	6	0	+6	+16
p**		0.03	0.26	0.03		1.00	0.19	0.001

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Appendix B

Table 7. Adult Test Scores for PKUCS Subjects Grouped by Age at Diet Discontinuation (Values tabulated are mean ± s.d.)