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. 2022 Aug 15;15(9):1768–1780. doi: 10.1002/aur.2790

TABLE 2.

Parametric coefficients and approximate complexity and significance of smooth terms for the fitted GAM model to SCQ total score.

Sample A ‐ SCQ Lifetime
Fixed factor β SE p
Intercept 16.529 1.778 <2e‐16***
Diagnosis −15.114 0.995 <2e‐16***
Neurotypical −1.204 0.963 0.213
Gender girl verbal 5.895 1.929 0.003**
Smooth term Estimated degrees of freedom p
s(AGE) 1.000 0.239
s(AGE):Diagnosis ASD 1.000 0.259
s(AGE):Diagnosis neurotypical 7.373e‐05 0.995
s(AGE):Gender boy 1.000 0.539
s(AGE):Gender girl 2.728e‐06 1.000
s(AGE):Non‐verbal 1.628e‐04 0.998
s(AGE):Verbal 1.000 0.109
Sample B ‐ SCQ Current
Fixed factor β SE p
Intercept 17.083 1.604 <2e‐16***
Diagnosis neurotypical −10.796 0.738 <2e‐16***
Gender girl −0.120 0.685 0.861
Verbal −1.216 1.720 0.481
Smooth term Estimated degrees of freedom p
s(AGE) 1.000 0.0041*
s(AGE):Diagnosis ASD 1.533 0.181
s(AGE):Diagnosis neurotypical 1.000 0.420
s(AGE):GENDER BOY 1.2243–04 0.997
s(AGE):Gender girl 2.825 0.256
s(AGE):Non‐verbal 1.000 0.999
s(AGE):Verbal 2.145e‐05 0.999