Table 3.
Relative spectral power, early home adversity, early intervention status and timing
| Parameters | Model 1 | Model 2 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Fixed Effects | Estimates | Fixed Effects | Estimates | ||||||||
| Band | F | p val | B | SE | p val | F | p val | B | SE | p val | |
| Theta (4–6Hz) | Intercept | 33.243 | .000** | −1.641 | .282 | .000** | 32.633 | .000** | −1.69 | .294 | .000** |
| Region1 | 27.005 | .000** | - | - | - | 27.003 | .000** | - | - | - | |
| Malt. Risk | 0.032 | .858 | −.001 | .001 | .858 | 0.091 | .764 | −.001 | .001 | .764 | |
| Fam. Income Inf. | 1.476 | .227 | .008 | .006 | .227 | 1.659 | .201 | .008 | .006 | .201 | |
| Fam. Income 8 yr | 0.190 | .664 | .002 | .003 | .664 | 0.218 | .642 | .001 | .003 | .642 | |
| EEG age | 7.383 | .008** | −.009 | .003 | .008** | 7.695 | .007** | −.009 | .003 | .007** | |
| ABC2 | -- | -- | -- | -- | -- | 0.769 | .383 | .015 | .017 | .383 | |
| Intervention Timing | -- | -- | -- | -- | -- | 1.430 | .235 | .001 | .001 | .089 | |
| ABC*Timing | -- | -- | -- | -- | -- | 1.188 | .278 | −.001 | .001 | .278 | |
| Low Alpha (6–9Hz) | Intercept | 11.099 | .001** | −1.600 | .485 | .001** | 10.244 | .002** | −1.57 | .494 | .002** |
| Region1 | 25.531 | .000** | - | - | - | 25.494 | .000** | - | - | - | |
| Malt. Risk | 4.794 | .031* | .003 | .001 | .031* | 4.542 | .036* | ,003 | ,001 | .036* | |
| Fam. Income Inf. | 5.245 | .024* | .025 | .011 | .024* | 4.974 | .028* | ,025 | .011 | .028* | |
| Fam. Income 8 yr | 4.856 | .030* | −.013 | .005 | .030* | 5.413 | .022* | −.013 | .005 | .022* | |
| EEG age | 1.174 | .281 | −.006 | .006 | .281 | 0.802 | .373 | −.005 | .005 | .373 | |
| ABC2 | -- | -- | -- | -- | -- | 2.434 | .122 | .046 | .029 | .122 | |
| Intervention Timing | -- | -- | -- | -- | -- | 4.765 | .032* | −.001 | .001 | .783 | |
| ABC*Timing | -- | -- | -- | -- | -- | 3.329 | .071 | −.004 | .002 | .071 | |
| High Alpha (9–12Hz) | Intercept | 9.345 | .003** | −1.32 | .441 | .004** | 8.363 | .005** | −1.29 | .459 | .006** |
| Region1 | 75.515 | .000** | - | - | - | 75.405 | .000** | - | - | - | |
| Malt. Risk | 18.909 | .000** | −.005 | .001 | .000** | 18.559 | .000** | −.005 | .001 | .000** | |
| Fam. Income Inf. | 0.007 | .934 | .001 | .010 | .934 | 0.003 | .958 | .001 | .011 | .958 | |
| Fam. Income 8 yr | 3.534 | .063 | −.010 | .005 | .063 | 3.713 | .057 | −.010 | .005 | .057 | |
| EEG age | 6.091 | .015* | .013 | .005 | .015* | 6.963 | .010* | .014 | .005 | .010* | |
| ABC2 | -- | -- | -- | -- | -- | 0.001 | .980 | .001 | .027 | .098 | |
| Intervention Timing | -- | -- | -- | -- | -- | 2.740 | .101 | −.002 | .001 | .167 | |
| ABC*Timing | -- | -- | -- | -- | -- | 0.039 | .844 | .001 | .002 | .844 | |
| Beta (12–20Hz) | Intercept | 9.836 | .002** | −1.51 | .484 | .002** | 8.713 | .004** | −1.418 | .494 | .005** |
| Region1 | 13.139 | .000** | - | - | - | 13.096 | .000** | - | - | - | |
| Malt. Risk | 0.003 | .958 | −.001 | .001 | .958 | .001 | .980 | .001 | .001 | .980 | |
| Fam. Income Inf. | 1.472 | .228 | −.013 | .011 | .228 | 1.829 | .180 | −.015 | .011 | .180 | |
| Fam. Income 8 yr | 0.465 | .497 | .004 | .005 | .497 | 0.481 | .489 | .003 | .005 | .489 | |
| EEG age | 0.053 | .818 | .001 | .006 | .818 | 0.002 | .961 | −.001 | .005 | .961 | |
| ABC2 | -- | -- | -- | -- | -- | 4.270 | .042* | −.061 | .029 | .042* | |
| Intervention Timing | -- | -- | -- | -- | -- | 2.628 | .108 | −.001 | ,001 | .770 | |
| ABC*Timing | -- | -- | -- | -- | -- | 4.077 | .046* | .005 | .002 | .046* | |
Key:
*
= p<.05,
**
=p<.01.
1
B estimates for each of the 7 regions included in model not reported, Reference is parietal region;
1
Reference is ABC group. ABC=Attachment and Biobehavioral Catch up; DEF=Developmental Education for Children; Fam=Family.