Table 1.
Demographic Characteristics of the Sample and Overall Traumatic Event and Symptom Descriptive Characteristics
| Autistic, M (SD) | Nonautistic, M (SD) | Group differences |
|||
|---|---|---|---|---|---|
| t(df) | p | Cohen's d | |||
| Age, years | 29.00 (9.80) | 45.69 (16.12) | t(606.66) = 16.15 | <0.001 | 1.21 |
| Household income, USD | 34,933 (40,194) | 56,753 (68,042) | t(588.13) = 4.99 | <0.001 | 0.38 |
| Autistic traits (AQ-Short score) | 78.61 (11.28) | 64.47 (10.72) | t(617) = 15.91 | <0.001 | 1.29 |
| Depression symptoms (PHQ-4) | 2.92 (1.91) | 1.55 (1.78) | t(570.53) = 9.33 | <0.001 | 0.75 |
| Anxiety symptoms (PHQ-4) | 3.02 (1.87) | 1.61 (1.92) | t(634) = 9.32 | <0.001 | 0.75 |
| n, % | χ2 | p | |||
|---|---|---|---|---|---|
| Gender |
|
56.91, df = 2 |
<0.001 |
||
| Cisgender woman |
93, 33.7 |
180, 49.9 |
|
|
|
| Cisgender man |
128, 46.4 |
172, 47.6 |
|||
| Transgender or nonbinary |
55, 19.9 |
9, 2.5 |
|||
| Race/ethnicity |
|
|
15.38, df = 2 |
<0.001 |
|
| White/non-Hispanic |
205, 74.3 |
239, 66.2 |
|||
| Black/African American |
14, 5.1 |
53, 14.7 |
|||
| Other/not listed | 57, 20.7 | 69, 19.1 | |||
| Autistic, M (SD) | Nonautistic, M (SD) | t(df) | p | Cohen's d | |
|---|---|---|---|---|---|
| Overall traumatic events (0–17) | |||||
| Number happened to me |
3.21 (2.67) |
2.55 (2.44) |
t(562.44) = −3.21 |
0.001 |
−0.26 |
| Number witnessed |
1.94 (2.50) |
1.26 (2.00) |
t(515.01) = −3.69 |
<0.001 |
−0.30 |
| Number learned about |
2.49 (3.97) |
1.71 (3.31) |
t(531.94) = −2.64 |
0.008 |
−0.22 |
| Number part of job |
0.28 (1.36) |
0.11 (0.67) |
t(377.37) = −1.82 |
0.07 |
−0.16 |
| PCL symptom scores | |||||
| Total score |
39.14 (22.47) |
24.22 (21.10) |
t(626) = −8.53 |
<0.001 |
−0.69 |
| Cluster B (re-experiencing) |
9.97 (6.16) |
6.56 (5.88) |
t(626) = −7.06 |
<0.001 |
−0.57 |
| Cluster C (avoidance) |
4.55 (2.83) |
3.37 (2.81) |
t(626) = −5.18 |
<0.001 |
−0.42 |
| Cluster D (Neg mood/cognition) |
13.96 (8.63) |
8.22 (8.05) |
t(626) = −8.57 |
<0.001 |
−0.69 |
| Cluster E (hyperarousal) | 10.67 (6.76) | 6.12 (6.26) | t(626) = −8.71 | <0.001 | −0.70 |
The transgender and/or nonbinary category consisted of those who selected transgender, nonbinary, agender, or not listed. The other/not listed race/ethnicity category consisted of those who selected Hispanic or Latino/a, bi- or multiracial, Asian or Asian American, Native Hawaiian or other Pacific Islander, American Indian or Native Alaskan, Middle Eastern, Southwest Asian, or North African, or not listed.
AQ-Short, Autism-Spectrum Quotient-Short; PCL, Posttraumatic Stress Disorder Checklist; PHQ-4, Patient Health Questionnaire-4; USD, U.S. dollars, rounded to the nearest dollar.