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Table 10 Correlation between age and tract-specific measurements

From: White matter connectivity in children with autism spectrum disorders: a tract-based spatial statistics study

  Number of streamlines Length of streamlines Volume
  ASD Controls ASD Controls ASD Controls
  r value p value r value p value r value p value r value p value r value p value r value p value
CC -.07 .77 .07 .47 .05 .82 .22 .54 -.14 .53 .31 .39
Cing left -.13 .30 -.22 .54 .09 .68 -.07 .85 -.18 .43 -.16 .66
Cing right -.05 .82 -.09 .80 .11 .61 .11 .76 -.15 .50 -.55 .09
DAF left .25 .25 .39 .29 .30 .16 -.05 .94 .25 .25 .38 .31
DAF right .47 .02* .41 .24 .15 .48 -.08 .82 .46 .03* .39 .26
IAAF left .23 .29 .17 .64 .01 .02 .46 .18 .15 .49 .39 .27
IAAF right .41 .05 -.07 .84 .95 .94 -.21 .56 .32 .14 .18 .62
IPAF left .28 .19 .07 .89 -.15 .49 .61 .06 .12 .59 .20 .57
IPAF right -.57 .005** -.28 .44 -.29 .17 .29 .40 -.49 .02* .005 .99
  Fractional anisotropy Mean diffusivity     
  ASD Controls ASD Controls     
  r value p value r value p value r value p value r value p value     
CC -.27 .22 .37 .28 -.12 .58 -.69 .03*     
Cing left .05 .82 .44 .19 -.05 .81 -.47 .17     
Cing right .31 .15 .25 .49 -.15 .49 -.72 .02*     
DAF left .21 .35 .33 .43 .08 .73 -.96 <.001**     
DAF right .008 .97 .003 .99 -.27 .27 -.71 .03*     
IAAF left .04 .85 .57 .08 -.36 .09 -.88 .001*     
IAAF right .14 .52 -.22 .54 -.25 .25 -.60 .07     
IPAF left .22 .31 .18 .62 -.39 .06 -.85 .002**     
IPAF right -.24 .26 -.25 .49 -.35 .09 -.67 .03*     
  Parallel diffusivity Perpendicular diffusivity     
  ASD Controls ASD Controls     
  r value p value r value p value r value p value r value p value     
CC -.32 .14 -.10 .78 .07 .77 -.36 .30     
Cing left .13 .56 -.38 .28 -.06 .79 -.66 .04*     
Cing right .09 .69 -.65 .04* .07 .75 -.73 .02*     
DAF left -.07 .77 -.90 .002* -.31 .16 -.78 .02*     
DAF right .12 .63 -.14 .73 -.19 .42 -.01 .98     
IAAF left -.03 .17 -.33 .35 -.31 .16 -.23 .52     
IAAF right -.05 .82 -.55 .09 -.20 .37 -.58 .08     
IPAF left -.37 .12 -.87 .001** -.38 .07 -.71 .02*     
IPAF right -.03 .88 -.58 .08 -.08 .72 -.09 .79     
  1. ASD: Autism Spectrum Disorder; CC: corpus callosum; Cing: cingulum; DAF: direct segment of the arcuate fasciculus; IAAF: indirect anterior segment of the arcuate fasciculus; IPAF: indirect posterior segment of the arcuate fasciculus. r: Pearson’s correlation coefficient.
  2. * Statistically significant at the threshold uncorrected p < .05.
  3. ** Significance level at the threshold uncorrected p < .01.