Table 3.
Mixed Effects Models for the (a) Left Arcuate-FT and (b) Right Arcuate-FP Estimating Receptive Language
| (a) Left Arcuate-FT | (b) Right Arcuate-FP | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Estimate (SE) | t-statistic | df | p-value | 95% CI | Estimate (SE) | t-statistic | df | p-value | 95% CI | |
| Intercept | −0.649 (3.67) | −0.177 | 32.2 | 0.861 | (−8.12, 6.82) | −0.73 (3.23) | −0.226 | 27.5 | 0.823 | (−7.36, 5.9) |
| HL: Negative | 5.9 (3.52) | 1.675 | 43.7 | 0.101 | (−1.2, 13) | 5.692 (3.18) | 1.793 | 30.8 | 0.083 | (−0.79, 12.18) |
| LL: Negative | 7.975 (3.79) | 2.106 | 38.2 | 0.042 | (0.31, 15.64) | 7.033 (3.45) | 2.038 | 29.2 | 0.051 | (−0.02, 14.09) |
| 6- to 12-months | 3.853 (2.88) | 1.339 | 95 | 0.184 | (−1.86, 9.57) | 4.454 (2.93) | 1.52 | 25.8 | 0.141 | (−1.58, 10.49) |
| 12- to 24-months | −5.144 (5.91) | −0.87 | 22.5 | 0.393 | (−17.41, 7.12) | −3.378 (7.28) | −0.464 | 8.7 | 0.654 | (−20.17, 13.42) |
| Fractional Anisotropy | 1.811 (1.03) | 1.753 | 32.4 | 0.089 | (−0.29, 3.91) | 1.925 (0.95) | 2.018 | 26.7 | 0.054 | (−0.04, 3.88) |
| HL: Neg. x 6–12 | 1.645 (0.72) | 2.272 | 172.7 | 0.024 | (0.22, 3.07) | 1.65 (0.7) | 2.346 | 154.2 | 0.02 | (0.26, 3.04) |
| LL: Neg x 6–12 | 2.701 (0.8) | 3.386 | 108.2 | 0.001 | (1.12, 4.28) | 2.608 (0.78) | 3.341 | 89.1 | 0.001 | (1.06, 4.16) |
| HL: Neg. x 12–24 | 5.746 (0.8) | 7.178 | 926.1 | < 0.001 | (4.17, 7.32) | 5.767 (0.82) | 7.017 | 433.5 | < 0.001 | (4.15, 7.38) |
| LL: Neg. x 12–24 | 6.078 (0.87) | 6.96 | 739.2 | < 0.001 | (4.36, 7.79) | 6.08 (0.89) | 6.825 | 438.1 | < 0.001 | (4.33, 7.83) |
| HL: Neg. x FA | −1.578 (0.99) | −1.591 | 44.1 | 0.119 | (−3.58, 0.42) | −1.59 (0.94) | −1.699 | 30.9 | 0.099 | (−3.5, 0.32) |
| LL: Neg. x FA | −2.102 (1.07) | −1.964 | 37.6 | 0.057 | (−4.27, 0.07) | −1.92 (1.02) | −1.885 | 28.6 | 0.07 | (−4.01, 0.17) |
| 6–12 x FA | −0.109 (0.77) | −0.142 | 65 | 0.887 | (−1.64, 1.42) | −0.286 (0.8) | −0.359 | 23.3 | 0.723 | (−1.93, 1.36) |
| 12–24 x FA | 1.976 (1.4) | 1.415 | 27 | 0.168 | (−0.89, 4.84) | 1.704 (1.75) | 0.971 | 9.6 | 0.355 | (−2.26, 5.67) |
Note. Reference groups are High-Likelihood ASD, Female, and Maternal Education Less than a college Degree. The covariates of sex, maternal education, and site of data collection were controlled for in the current model. HL: Negative = High-Likelihood not diagnosed with ASD, LL: Negative = Low Likelihood not diagnosed with ASD, FA = Fractional Anisotropy, WM = White Matter.