Table 4.
Regression coefficients showing associations between diffusion parameter values at term-equivalent age and language ability at two years old, controlling for room type, social risk, and birth gestational age
| Receptive | Expressive | ||||||
|---|---|---|---|---|---|---|---|
| Coefficient | Corrected p value | R2 | Coefficient | Corrected p value | R2 | ||
| pGM | FA | −0.83 | >0.99 | 0.08 | 8.66 | >0.99 | 0.09 |
| MD | 9.11 | >0.99 | 0.12 | 9.07 | >0.99 | 0.11 | |
| AD | 7.41 | >0.99 | 0.12 | 9.55 | >0.99 | 0.12 | |
| RD | 8.08 | >0.99 | 0.12 | 6.85 | >0.99 | 0.10 | |
| nGM | FA | −9.10 | >0.99 | 0.10 | −32.59 | 0.03 | 0.26 |
| MD | 12.11 | 0.22 | 0.19 | 12.85 | 0.37 | 0.17 | |
| AD | 8.05 | 0.55 | 0.16 | 2.62 | >0.99 | 0.09 | |
| RD | 11.15 | 0.30 | 0.18 | 16.23 | 0.07 | 0.23 | |
| pWM | FA | 15.74 | >0.99 | 0.12 | −3.71 | >0.99 | 0.08 |
| MD | 1.78 | >0.99 | 0.09 | 9.53 | >0.99 | 0.13 | |
| AD | 4.39 | >0.99 | 0.10 | 7.80 | >0.99 | 0.12 | |
| RD | −0.50 | >0.99 | 0.08 | 7.98 | >0.99 | 0.11 | |
| nWM | FA | −8.82 | >0.99 | 0.09 | −19.28 | >0.99 | 0.11 |
| MD | −0.06 | >0.99 | 0.08 | 5.11 | >0.99 | 0.11 | |
| AD | −0.47 | >0.99 | 0.09 | 3.10 | >0.99 | 0.09 | |
| RD | 0.20 | >0.99 | 0.08 | 5.68 | >0.99 | 0.12 | |
Bold values indicate a significant association. Coefficient values for diffusivity measures are multiplied by 103. p/nGM, primary/nonprimary GM.