Table 5.
Regression Models Including Therapy Dosage Variables and Interaction Terms in ASD Group
| OT Total | PT Total | ST Total | Therapies Total | Sensory-Based Total | |
|---|---|---|---|---|---|
| Est (SE) | Est (SE) | Est (SE) | Est (SE) | Est (SE) | |
| Dependent variable: T2 HYPO | |||||
| Parameter | |||||
| T1 HYPO | 0.68 (0.11)*** | 0.67 (0.13)*** | 0.63 (0.11)*** | 0.64 (0.11)*** | 0.67 (0.12)*** |
| Therapy Dosage | 0.003 (0.001)** | −0.001 (0.004) | 0.002 (0.001)* | 0.001 (0.0004)** | 0.001 (0.001) |
| Interaction | 0.01 (0.06) | −0.13 (0.28) | 0.02 (0.04) | 0.00 (0.03) | −0.03 (0.05) |
| Standardized Beta | |||||
| T1 HYPO | 0.64 (0.11) | 0.63 (0.12) | 0.60 (0.11) | 0.6 (0.10) | 0.63 (0.11) |
| Therapy Dosage | 0.34 (0.12) | −0.04 (0.17) | 0.34 (0.13) | 0.43 (0.13) | 0.16 (0.13) |
| Dependent variable: T2 HYPER | |||||
| Parameter | |||||
| T1 HYPER | 0.66 (0.13)*** | 0.71 (0.13)*** | 0.74 (0.13)*** | 0.71 (0.12)*** | 0.7 (0.13)*** |
| Therapy Dosage | 0.003 (0.001)* | −0.002 (0.003) | 0.002 (0.001)** | 0.002 (0.001)** | 0.001 (0.001) |
| Interaction | −0.08 (0.07) | 0.27 (0.28) | −0.04 (0.03) | −0.04 (0.02) | −0.01 (0.04) |
| Standardized Beta | |||||
| T1 HYPER | 0.64 (0.12) | 0.69 (0.13) | 0.72 (0.12) | 0.69 (0.12) | 0.68 (0.13) |
| Therapy Dosage | 0.34 (0.14) | −0.1 (0.12) | 0.38 (0.14) | 0.47 (0.15) | 0.17 (0.16) |
| Dependent variable: T2 SIRS | |||||
| Parameter | |||||
| T1 SIRS | 0.92 (0.16)*** | 0.93 (0.18)*** | 0.85 (0.16)*** | 0.87 (0.16)*** | 0.9 (0.16)*** |
| Therapy Dosage | 0.003 (0.001)* | 0.001 (0.003) | 0.002 (0.001)* | 0.001 (0.001)** | 0.002 (0.001) |
| Interaction | −0.07 (0.06) | 0.09 (0.29) | −0.06 (0.05) | −0.05 (0.03) | −0.06 (0.06) |
| Standardized Beta | |||||
| T1 SIRS | 0.66 (0.12) | 0.67 (0.13) | 0.61 (0.12) | 0.63 (0.11) | 0.65 (0.12) |
| Therapy Dosage | 0.29 (0.13) | 0.03 (0.14) | 0.31 (0.14) | 0.40 (0.14) | 0.24 (0.13) |
p < 0.05
p < 0.01
p < 0.001
Note. ASD = autism spectrum disorder; HYPO = hyporesponsiveness pattern; HYPER = hyperresponsiveness pattern; SIRS = sensory interests repetitions and seeking behaviors pattern; OT = occupational therapy; PT = physical therapy; ST = speech-language therapy. Interaction terms represent T1 Sensory Score X Therapy Dosage; Est (SE) = parameter estimate (standard error). Covariates included in all models: elapsed time, age at T1, gender, IQ proxy, household income, mother’s education. Therapy dosage is scaled in hours of service. For example, for each additional hour of OT service, we expect a .003 increase in HYPO score. Table is best viewed in a separate window.