Table 4.
Reduced model exploration of the significant interactions from the model-building analyses. DHA, choline, and DHA X choline were used to predict the difference in latency to peak amplitude of the negative deflection seen between 200 and 900 ms when viewing novel vs. familiar stimuli. Only lead groupings showing a predictor at the p < 0.15 level in previous analyses were analyzed.
| Lead Grouping | Variable | β | SE | F-Value | p-Value | Model F | Model p | Model R-sq |
|---|---|---|---|---|---|---|---|---|
| Frontal Right | Intercept | −229.54 | 127.45 | −1.80 | 0.08 ^ | 2.02 | 0.12 | 0.11 |
| DHA | 5.38 | 3.46 | 1.55 | 0.12 | ||||
| Choline | 1.75 | 0.77 | 2.28 | 0.03 * | ||||
| DHA X Choline | −0.04 | 0.02 | −1.92 | 0.06 ^ | ||||
| Frontal Left | Intercept | −117.69 | 106.95 | −1.10 | 0.27 | 3.66 | 0.02 * | 0.18 |
| DHA | 6.81 | 2.90 | 2.35 | 0.02 * | ||||
| Choline | 1.05 | 0.64 | 1.63 | 0.11 | ||||
| DHA X Choline | −0.05 | 0.02 | −2.75 | 0.008 ** | ||||
| Central Z | Intercept | −312.00 | 117.62 | −2.65 | 0.01 * | 4.54 | 0.007 ** | 0.21 |
| DHA | 9.89 | 3.19 | 3.10 | 0.03 * | ||||
| Choline | 1.73 | 0.71 | 2.44 | 0.02 * | ||||
| DHA X Choline | −0.07 | 0.02 | −3.44 | 0.001 ** | ||||
| Midline | Intercept | −118.24 | 110.56 | −1.07 | 0.29 | 2.27 | 0.09 ^ | 0.12 |
| DHA | 5.38 | 3.00 | 1.79 | 0.08 ^ | ||||
| Choline | 0.94 | 0.67 | 1.40 | 0.17 | ||||
| DHA X Choline | −0.04 | 0.02 | −2.18 | 0.03 * |
*** Significant at p < 0.001; ** Significant at p < 0.01; * Significant at p < 0.05; ^ Trending toward significance at p < 0.10; DHA: docosahexaenoic acid.