Table 2.
Brain Tissue Relationships to EA-CSF at ages 1 and 2 years in typically developing.
| Continuous Variables | Year One (N=82) | Year Two (N=49) | ||||||
|---|---|---|---|---|---|---|---|---|
| Mean (SD) | R2 | Est. | p | Mean (SD) | R2 | Est. | p | |
| EA-CSF (mm3) | 78830.59 (13491.83) | - | - | - | 85285.73 (14635.93) | - | - | - |
| CSF at Birth (mm3) | 60213.59 (11805.56)a | .309 | 0.584 | <.001* | 59236.32 (11233.64)b | .107 | 0.431 | 0.048* |
| Intracranial (mm3) | 938899.07 (90378.31) | .211 | 0.069 | <.001* | 1061392.36 (108222.17) | .260 | 0.069 | <.001* |
| Gray Matter (mm3) | 639499.57 (56240.98) | .187 | 0.103 | <.001* | 731709.03 (74139.13) | .270 | 0.103 | <.001* |
| White Matter (mm3) | 230625.04 (31376.44) | .136 | 0.159 | <.001* | 258942.39 (28145.69) | .217 | 0.242 | <.001* |
| CSF (mm3) | 68774.46 (10040.55) | .311 | 0.750 | <.001* | 70740.95 (8483.61) | .174 | 0.720 | .002* |
| Total Ventricle (mm3) | 6552.18 (3301.14) | .039 | 0.807 | .075 | 6830.35 (3878.06) | .102 | 1.205 | .025* |
| Average CT (mm) | 2.84 (0.14)c | .129 | 34039.4 | .002* | 2.68 (0.09)d | .001 | −4414.55 | .850 |
| Total SA (mm2) | 141205.33 (12799.35)c | .213 | 0.465 | <.001* | 167593.47 (14747.69)d | .168 | 0.411 | .004* |
n=56
n=37
n=7
n=48.