Table 5:
Comparison of scores for children with ASD and community-matched controls without ASD during phase III
| Variables | Sensitivity | Specificity | True Positives n (%) | True Negatives n (%) | False Positives n (%) | False Negatives n (%) | Positive Predictive Value | Negative Predictive Value |
|---|---|---|---|---|---|---|---|---|
| SRS long form1 | ||||||||
| Raw scores (cut off 62) | 0.96 | 0.98 | 47 (48.0) | 48 (49.0) | 1 (1.0) | 2 (2.0) | 0.98 | 0.96 |
| Raw scores (cut off 70) | 0.76 | 0.98 | 37 (37.8) | 48 (49.0) | 1 (1.0) | 12 (12.2) | 0.97 | 0.80 |
| T scores (cut off 60) | 0.90 | 0.98 | 44 (44.9) | 48 (49.0) | 1 (1.0) | 5 (5.1) | 0.98 | 0.91 |
| SRS short form2 | ||||||||
| Raw scores (cut off 15) | 0.90 | 0.98 | 44 (44.9) | 48 (49.0) | 1 (1.0) | 5 (5.1) | 0.98 | 0.91 |
1
Based on standard recommendation, SRS total raw score cutpoint value of 70 was used to determine which children screened positive for ASD. SRS T-score cutpoint value of 60 was used to determine which children screened positive for ASD
2
SRS Total raw score cutpoint value of 15 based on short form with 16 questions
ADS: Autism spectrum disorder; CI: Confidence interval; SRS: Social responsiveness scale.