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Table 2 Class differences in symptom severity at 36 months

From: Latent trajectories of adaptive behaviour in infants at high and low familial risk for autism spectrum disorder

  ANOVA Post hoc Tukey’s tests
     Class 2 vs. class 1 Class 3 vs. class 1 Class 3 vs. class 2
  F dof p t p t p t p
ADOS at 36m1
 CSS-Tot 1.77 2/232 0.17
 CSS-SA 1.04 2/232 0.35
 CSS-RRB 2.15 2/232 0.12
ADI-R at 36m2
 ADI-Comm3 9.56 2/236 < 0.001* − 4.25 < 0.001* − 3.97 < 0.001* − 0.42 0.91
 ADI-Soc3 13.0 2/236 < 0.001* − 5.04 < 0.00* − 4.39 < 0.001* 0.01 1.00
 ADI-RBI4 5.32 2/236 0.005* − 2.79 0.015* − 3.23 0.004* − 1.28 0.40
SCQ at 36m2
 SCQ-Tot3 11.2 2/236 < 0.001* − 4.40 < 0.001* − 4.53 < 0.001* 0.50 0.50
  1. This table shows the detailed statistics from the ANOVA-investigated differences between classes in symptom severity at 36 months as measured by the ADOS, ADI-R, and SCQ. When differences were significant, post hoc Tukey’s tests for multiple comparisons were performed for paired comparisons of classes. Differences were considered significant for p < 0.05 (marked as “*”)
  2. ANOVA analysis of variance, Class 1 decreasing adaptive behaviour, Class 2 average/stable adaptive behaviour, Class 3 recovering adaptive behavior, dof degrees of freedom, ADOS Autism Diagnostic Observation Schedule, CSS Calibrated Severity Score, ADI-R Autism Diagnostic Interview-Revised, SCQ Social Communication Questionnaire
  3. 1Data were available for a subsample of n = 235 infants
  4. 2Data were available for a subsample of n = 239 infants
  5. 3Significant difference per class with p < 0.001
  6. 4Significant difference per class with p < 0.05