Table 1.
Baseline Characteristics
| HA-PCI | PCI | P | |||||
|---|---|---|---|---|---|---|---|
| Mean | SD | n | Mean | SD | n | ||
| Age | 63.1 | 8.4 | 58 | 64.3 | 7.9 | 46 | .455 |
| Hippocampal volume (mL) | 3.8 | 0.5 | 57 | 3.8 | 0.4 | 46 | .762 |
| Gray matter (mL) | 566 | 57.8 | 57 | 585 | 47.3 | 46 | .072 |
| Normal appearing white matter (mL) | 442 | 63.0 | 57 | 450 | 55.1 | 46 | .536 |
| White matter hyperintensities (mL) | 12.7 | 12.5 | 55 | 17.4 | 20.7 | 44 | .167 |
| Accelerated aging (months) | 0.1 | 7.0 | 58 | 3.0 | 8.8 | 46 | .062 |
| Total recall (nr. words) | 22.9 | 4.8 | 55 | 24.6 | 6.2 | 41 | .132 |
Abbreviation: HA-PCI, hippocampal avoidance prophylactic cranial radiation.
Characteristics for patients for whom MRI data from the baseline and 4-month measurement were available.