Table 2.

Descriptive characteristics for adults with and without neurodevelopmental disabilities (NDDs).

	Without NDDs (n=8,717,829)	Intellectual disabilities (n=69,456)	Autism spectrum disorders (n=21,844)	Cerebral palsy (n=29,255)
	%	%	%	%
Age, mean (SD)	55.2 (18.6)	51.5 (15.1)	38.3 (15.5)	50.8 (16.3)
18–30 years	12.0	10.6	41.3	13.1
31–40 years	13.1	14.8	20.0	16.4
41–50 years	14.5	19.4	14.8	18.7
51–60 years	17.0	26.5	13.2	22.0
61–70 years	18.9	18.6	7.3	17.9
>70 years	24.2	10.1	3.3	11.8
sex
Women	55.3	44.5	27.1	48.1
Men	44.7	55.5	72.9	51.9

SD, standard deviation.