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Table 1 Demographic variables among the ASD group and the ID-only group in the 2009 to 2010 NCI sample of adults aged 30-59 years

From: Prevalence of selected clinical problems in older adults with autism and intellectual disability

Demographic variables

ASD groupa

ID-only groupb

(n = 438), number (%)

(n = 4,551), number (%)

Age

  

30 to 39 years

190 (43)

1,326 (29)

40 to 49 years

154 (35)

1,654 (36)

50 to 59 years

94 (21)

1,571 (35)

Missing data

0

0

Gender

  

Female

117 (27)

2,008 (44)

Male

319 (73)

2,532 (56)

Missing data

2

11

Race/ethnicity

  

White, non-hispanic

326 (75)

3,280 (72)

Black, non-hispanic

84 (19)

914 (20)

Hispanic

14 (3)

228 (5)

Asian

4 (1)

48 (1)

American Indian

2 (0)

44 (1)

Other

3 (1)

15 (0)

Missing data

5

19

Marital status

  

Single, never married

431 (100)

4,257 (95)

Single, married in the past

0 (0)

142 (3)

Married

1 (0)

111 (2)

Missing data

6

41

Level of ID

  

Mild

107 (27)

2,055 (47)

Moderate

147 (37)

1,441 (33)

Severe

146 (37)

840 (19)

Missing data

38

215

Primary language

  

English

433 (99)

4,440 (98)

Other

5 (1)

95 (2)

Missing data

0

16

Primary means of expression

  

Spoken

280 (64)

3,933 (87)

Gesture/body language

137 (31)

477 (11)

Sign language/finger spelling

13 (3)

61 (1)

Communication aid/device

3 (1)

21 (0)

Other

3 (1)

33 (1)

Missing data

2

26

  1. aASD group: diagnosis of intellectual disability (ID) and autism spectrum disorder (ASD); bID-only group: diagnosis of ID but no diagnosis of ASD. NCI, National Core Indicators.