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Table 3 Weight of variables in ADI-R score change based on linear regression models

From: Two-year follow-up of 90 children with autism spectrum disorder receiving intensive developmental play therapy (3i method)

  Variable Coefficient SD t-value P value
ADI-R Reciprocal Social Interaction >  30 hours per week or less −12.58 5.04 −2.496 0.0146*
Age −0.29 0.72 − 0.398 0.6914
Sex male or not 0.11 6.47 0.016 0.987
ADI-R score at T0 −0.09 0.51 − 0.182 0.8563
Verbal communication or not at T0a −14.82 6.40 −2.316 0.0231*
Listed comorbidity or not −1.42 7.23 −0.197 0.8445
ADI-R Language/Communication >  30 hours per week or less −9.88 6.77 −1.458 0.14859
Age −0.25 0.97 −0.263 0.79309
Sex male or not 5.62 8.86 0.634 0.52788
ADI-R score at T0 −1.32 1.09 −1.21 0.22971
Verbal communication or not at T0a −20.36 7.66 −2.659 0.00944**
Listed comorbidity or not −4.52 9.67 −0.47 0.64
ADI-R Repetitive Behaviors/Interests >  30 hours per week or less 0.55 6.95 0.08 0.94
Age −2.32 0.99 −2.34 0.022*
Sex male or not 2.43 8.58 0.28 0.78
ADI-R score at T0 −0.67 0.56 −1.20 0.24
Verbal communication or not at T0a −4.69 8.79 −0.53 0.60
Listed comorbidity or not −14.75 9.77 −1.51 0.14
  1. aVerbal or non-verbal communication status was defined through ADI-R communication initial assessment; **<0.01; *<0.05