Table 2:

Parameter estimates from a mixed linear modela

ParameterMean Change in FA (×103)P Value
(Intercept)−1.372.339
ACR5.360.058
ALIC1.906.499
BCC−2.767.326
CC−1.386.623
CGC−1.487.598
CGH2.145.447
CR2.908.302
CST−2.916.301
EC0.985.727
FXb6.677.018
FXSTb−6.268.027
GCC−1.024.716
IC−1.028.715
IFO2.183.439
PCR1.698.547
PLIC−1.709.544
PTR−0.666.813
RLIC−3.181.259
SCC0.224.937
SCR0.772.784
SFO−0.132.963
SLF−0.744.792
SS−0.229.935
Impacts−0.00178.722
Impacts × ACR−0.00194.841
Impacts × ALIC0.00005.996
Impacts × BCC0.00811.402
Impacts × CC−0.00330.733
Impacts × CGC0.01671.085
Impacts × CGHb−0.02059.034
Impacts × CR0.00312.747
Impacts × CST0.00699.471
Impacts × EC−0.00440.650
Impacts × FX0.00951.326
Impacts × FXSTb−0.02641.007
Impacts × GCC−0.01075.267
Impacts × IC0.00009.992
Impacts × IFO−0.01002.301
Impacts × PCR0.00327.735
Impacts × PLIC0.00033.973
Impacts × PTR0.01127.245
Impacts × RLIC−0.00015.988
Impacts × SCC−0.01306.178
Impacts × SCR0.00874.367
Impacts × SFO0.01579.104
Impacts × SLF0.00970.317
Impacts × SS−0.00291.764
  • Note:—CGH indicates cingulum hippocampus; CGC, cingulate gyrus; ACR, anterior corona radiata; ALIC, anterior limb of internal capsule; BCC, body of corpus callosum; CC, corpus callosum; CR, corona radiata; CST, corticospinal tracts; EC, external capsule; FX, fornix; IC, internal capsule; GCC, genu of corpus callosum; IFO, inferior fronto-occipital faciculus; PCR, posterior corona radiata; PLIC, posterior limb of internal capsule; PTR, posterior thalamic radiation; RLIC, retrolenticular part of internal capsule; SCC, splenium of corpus callosum; SCR, superior corona radiata; SFO, superior fronto-occipital fasciculus; SLF, superior longitudinal fasciculus; SS, sagittal stratum.

  • a Parameters for region main effects are centered at the mean number of impacts.

  • b Indicates statistical significance (P < .05).