Table 2.
ROI | ||
---|---|---|
| ||
Region of Interest | Fractional Anisotropy (dimensionless) | |
Smokers | Non-Smokers | |
Genu corpus callosum | 0.88 ± 0.04* | 0.84 ± 0.05 |
Splenium corpus callosum | 0.90 ± 0.05 | 0.89 ± 0.04 |
anterior corona radiata: | ||
left | 0.60 ± 0.07 | 0.56 ± 0.07 |
right | 0.58 ± 0.08 | 0.58 ± 0.08 |
midcaudal superior corona radiata: | ||
left | 0.44 ± 0.08 | 0.41 ± 0.07 |
right | 0.43 ± 0.06 | 0.43 ± 0.07 |
caudal superior corona radiata: | ||
left | 0.51 ± 0.08 | 0.47 ± 0.07 |
right | 0.48 ± 0.07 | 0.48 ± 0.08 |
internal capsule anterior limb | 0 | |
left | 0.54 ± 0.07 | 00.51 ± 0.09 |
right | 0.53 ± 0.08 | 0.50 ± 0.08 |
Genu internal capsule | ||
Left | 0.63 ± 0.06 | 0.62 ± 0.07 |
right | 0.63 ± 0.06 | 0.60 ± 0.06 |
internal capsule posterior limb | ||
left | 0.70 ± 0.06 | 0.70 ± 0.06 |
right | 0.75 ± 0.04 | 0.74 ± 0.04 |
perforant path | ||
left | 0.54 ± 0.07 | 0.54 ± 0.09 |
right | 0.54 ± 0.07 | 0.52 ± 0.08 |
anterior cingulum | ||
left | 0.49 ± 0.09 | 0.45 ± 0.11 |
right | 0.42 ± 0.09 | 0.37 ± 0.11 |
middle cingulum | ||
left | 0.72 ± 0.06* | 0.66 ± 0.08 |
right | 0.66 ± 0.08* | 0.61 ± 0.08 |
posterior cingulum | ||
left | 0.51 ± 0.09 | 0.54 ± 0.08 |
right | 0.52 ± 0.10 | 0.49 ± 0.10 |
Values tabulated are group means ± SD.
Significant difference from nonsmoker group, p<*0.05, **0.01 protected post-hoc T-Test (rank-transformed, therefore nonparametric) following omnibus repeated-measures MANCOVA covarying age and years-of-education.