Table 5.
Regression Coefficients Showing Cognitive and Language Factors as Predictors of ASD Classification
| Leiter-R
|
PPVT-III
|
EVT
|
||||
|---|---|---|---|---|---|---|
| B (SE) | OR (95% CI) | B (SE) | OR (95% CI) | B (SE) | OR (95% CI) | |
| ADI-R | ||||||
| Full Sample | −1.03 (0.32)** | 0.36 (0.19–0.67) | −0.42 (0.13)** | 0.66 (0.50–0.86) | −0.44 (0.14)** | 0.64 (0.49-.847) |
| Males | −0.96 (0.63) | 0.38 (0.11–1.32) | −0.26 (0.25) | 0.77 (0.48–1.25) | −0.12 (0.25) | 0.99 (0.62–1.58) |
| Females | −0.76 (0.44) † | 0.47 (0.20–1.12) | −0.21 (0.22) | 0.81 (0.53–1.24) | −0.48 (0.32) | 0.62 (0.33–1.14) |
| ADOS | ||||||
| Full Sample | −0.77 (0.24)** | 0.46 (0.28–0.74) | −0.40 (0.13)** | 0.67 (0.52–0.87) | −0.38 (0.13)** | 0.69 (0.53–0.89) |
| Males | −0.82 (0.66) | 0.44 (0.12–1.61) | −0.12 (0.27) | 0.89 (0.52–1.50) | −0.11 (0.26) | 0.89 (0.54–1.47) |
| Females | −0.43 (0.28) | 0.65 (0.38–1.12) | −0.24 (0.19) | 0.79 (0.54–1.15) | −0.16 (0.18) | 0.86 (0.61–1.21) |
| Clinical Diagnosis | ||||||
| Full Sample | −0.29 (0.23) | 0.75 (0.47–1.18) | −1.00 (0.13) | 0.91 (0.71–1.16) | −0.09 (0.12) | 0.91 (0.72–1.15) |
| Males | −0.12 (0.60) | 0.89 (0.27–2.89) | −0.23 (0.25) | 0.79 (0.49–1.29) | 0.11 (0.24) | 1.12 (0.70–1.79) |
| Females | −0.55 (0.36) | 0.58 (0.28–1.18) | −0.09 (0.19) | 0.92 (0.63–1.33) | −0.30 (0.26) | 0.74 (0.44–1.23) |
Note:
**
p < .01,
†
p < .09.
All models adjusted for chronological age. ADI-R=Autism Diagnostic Interview-Revised; ADOS=Autism Diagnostic Observation Schedule; PPVT-III=Peabody Picture Vocabulary Test; EVT=Expressive Vocabulary Test; Leiter-R=Leiter International Performance Scale-Revised.