Table 3.
Global gray matter, white matter, CSF and TIV volumes (liters) by group. Values given in mean (standard deviation)
| Variable | Controls (n = 31) | SDTx (n = 17) | MDTx (n = 12) | ANCOVA |
|---|---|---|---|---|
| Gray matter | 0.682 (0.08) | 0.667 (0.04) | 0.624 (0.06) | F(2,56) = 7.09, P = 0.002 |
| White mattera | 0.474 (0.05) | 0.454 (0.05) | 0.438 (0.06) | F(2,56) = 4.82, P = 0.012 |
| CSFa | 0.457 (0.10) | 0.550 (0.13) | 0.523 (0.08) | F(2,56) = 9.83, P < 0.001 |
| TIV | 1.613 (0.19) | 1.671 (0.15) | 1.584 (0.15) | F(2,57) = 1.02, P = 0.368 |
a
Controls significantly different from SDTx and MDTx, pairwise statistics given in text. CSF = cerebrospinal fluid; MDTx = multiple detoxification group; SDTx = single detoxification group; TIV = total intracranial volume.