Table 3.
Module 3: Classification by ADOS-2, SCQ and SRS
| Model fit | Correct classification | Variables | b (SE) | Wald (df = 3.84) |
Odd`s ratio | p | |||
|---|---|---|---|---|---|---|---|---|---|
| χ2 | − 2 LL | R2 | (%) | ||||||
| Autism and autism spectrum classification (n = 247) | |||||||||
| Model 1 | 73.09 (p < 0.000) |
181.15 | 0.40 | 86.2 | ADOS-2 | 3.07 (0.39) | 62.1 | 21.56 | 0.000 |
| Model 2 | 89.03 (p < 0.000) |
165.21 | 0.47 | 86.2 | ADOS-2 SRS |
3.04 (1.60) 1.60 (0.41) |
52.83 15.09 |
20.91 4.94 |
0.000 0.000 |
| Model 3 | 85.58 (p < 0.000) |
168.65 | 0.46 | 86.2 | ADOS-2 SCQ |
3.16 (0.42) 1.54 (0.44) |
57.07 12.21 |
23.70 4.69 |
0.000 0.000 |
| Model 4 | 93.36 (p < 0.000) |
160.87 | 0.49 | 85.4 | ADOS-2 SRS SCQ |
3.11 (0.43) 1.23 (0.45) 1.02 (0.49) |
51.78 7.60 4.35 |
22.44 3.44 2.77 |
0.000 0.006 0.037 |
| Autism classification (n = 165) | |||||||||
| Model 1 | 78.47 (p < 0.000) |
127.17 | 0.53 | 86.1 | ADOS-2 | 3.47 (0.46) | 57.31 | 32.31 | 0.000 |
| Model 2 | 92.31 (p < 0.000) |
113.33 | 0.60 | 86.1 | ADOS-2 SRS |
3.39 (0.50) 1.81 (0.51) |
46.53 12.76 |
29.85 6.13 |
0.000 0.000 |
| Model 3 | 98.18 (p < 0.000) |
107.46 | 0.63 | 86.1 | ADOS-2 SCQ |
3.89 (0.59) 2.27 (0.59) |
44.36 15.03 |
48.83 9.68 |
0.000 0.000 |
| Model 4 | 102.03 (p < 0.000) |
103.61 | 0.55 | 86.1 | ADOS-2 SRS SCQ |
3.76 (0.53) 1.09 (0.56) 1.83 (0.63) |
40.67 3.75 8.40 |
43.14 2.97 6.21 |
0.000 0.053 0.004 |
| Autism spectrum classification (n = 134) | |||||||||
| Model 1 | 44.51 (p < 0.000) |
134.48 | 0.38 | 79.9 | ADOS-2 | 2.69 (0.45) | 36.12 | 14.82 | 0.000 |
| Model 2 | 53.99 (p < 0.000) |
124.99 | 0.45 | 79.9 | ADOS-2 SRS |
2.74 (0.47) 1.37 (0.46) |
32.95 8.89 |
15.47 3.92 |
0.000 0.003 |
| Model 3 | 50.24 (p < 0.000) |
128.75 | 0.42 | 79.9 | ADOS-2 SCQ |
2.82 (0.47) 1.12 (0.47) |
35.54 5.52 |
16.79 3.05 |
0.000 0.019 |
| Model 4 | 55.50 (p < 0.000) |
123.50 | 0.46 | 79.9 | ADOS-2 SRS SCQ |
2.81 (0.49) 1.12 (0.50) 0.65 (0.53) |
32.98 5.07 1.51 |
16.63 3.07 1.92 |
0.000 0.024 0.220 |
L log likelihood, R2 Nagelkerkes R2, b regression coefficient, SE standard error, SRS Social Responsiveness scale, SCQ Social Communication Questionnaire