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Table 4 Demographic variables among the ASD group and ID-only group in the 2010 to 2011 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 = 298), number (%)

(n = 3,963), number (%)

Age

  

30 to 39 years

148 (50)

1,291 (33)

40 to 49 years

100 (34)

1,473 (37)

50 to 59 years

50 (17)

1,199 (30)

Missing data

0

0

Gender

  

Female

74 (25)

1,825 (46)

Male

224 (75)

2,137 (54)

Missing data

0

1

Race/ethnicity

  

White, non-hispanic

224 (75)

3,009 (77)

Black, non-hispanic

51 (17)

738 (19)

Hispanic

14 (5)

128 (3)

Asian

4 (1)

20 (1)

American Indian

1 (0)

32 (1)

Other

3 (1)

17 (0)

Missing data

1

19

Marital Status

  

Single, never married

296 (99)

3,711 (94)

Single, married in the past

2 (1)

131 (3)

Married

0 (0)

97 (2)

Missing data

0

24

Level of ID

  

Mild

76 (31)

1,692 (47)

Moderate

85 (34)

1,266 (35)

Severe

87 (35)

637 (18)

Missing data

50

368

Primary language

  

English

282 (96)

3,880 (98)

Other

12 (4)

67 (2)

Missing data

4

16

Primary means of expression

  

Spoken

161 (55)

3,387 (86)

Gesture/body language

107 (36)

443 (11)

Sign language/finger spelling

18 (6)

62 (2)

Communication aid/device

3 (1)

21 (1)

Other

6 (2)

22 (1)

Missing data

3

28

  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.