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
| 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 |
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.