. Author manuscript; available in PMC: 2014 Sep 16.

Published in final edited form as: Disabil Health J. 2012 May 2;5(3):185–189. doi: 10.1016/j.dhjo.2012.03.004

Table 2.

Birth year 1992, demographics, intellectual disability, and evaluation information for all cases residing in the region in surveillance year 2000 (age 8 years) and all cases residing in the region in surveillance year 2007 (age 15 years)

	Age 8 in 2000 N=61	Age 15 in 2007 N=67	p-value

Sex			0.05^†
Male	41(67%)	55(82%)
Female	20(33%)	12(18%)

Race^*			0.26
White	41(67%)	41
Black	20(33%)	15
Other	-	2

Intellectual isability^**			0.02^†
IQ<70	33(63%)	27(42%)
IQ>70	19(37%)	37(58%)

Median number of evaluations	6	6	0.33

Median age at 1^st diagnosis	44 months	104 months	0.00^†

^†

Statistically significant

Percentages do not add to 100 because of unknown race.

^**

Intellectual disability reported only for children with available IQ testing scores (90% of 8 year olds, 96% of 15 year olds).