Table 1.

Locations along the white matter tracts in which preterm and full term groups showed significant group differences in fractional anisotropy in two different protocols.

30 diffusion directions					96 diffusion directions
Half tract	Significant cluster location	Preterm mean FA of cluster (95% CI)	Full term mean FA of cluster (95% CI)	Significant cluster location	Preterm mean FA of cluster (95% CI)	Full term mean FA of cluster (95% CI)
PT mean FA < FT mean FA
UF-L
Medial	25–27c	0.53 (0.50–0.56)	0.57 (0.55–0.58)	22–27b	0.51 (0.47–0.54)	0.54 (0.53–0.56)
UF-R
Medial	16–20a	0.43 (0.40–0.45)	0.45 (0.44–0.47)	17–21a	0.42 (0.40–0.45)	0.45 (0.44–0.47)
	25–27a	0.53 (0.51–0.56)	0.57 (0.55–0.58)	24–27a	0.51 (0.49–0.54)	0.54 (0.53–0.56)
F-Major
Left	–	–	–	12–15b	0.70 (0.66–0.73)	0.74 (0.73–0.76)
PT mean FA > FT mean FA
ATR-R
Posterior	11–15b	0.56 (0.55–0.58)	0.54 (0.52–0.55)	–	–	–
IFOF-L
Posterior	10–14b	0.52 (0.50–0.54)	0.49 (0.47–0.50)	11–14b	0.48 (0.45–0.50)	0.44 (0.42–0.45)
IFOF-R
Posterior	10–14b	0.54 (0.52–0.57)	0.50 (0.49–0.51)	10–15b	0.50 (0.47–0.53)	0.46 (0.44–0.47)
ILF-L
Posterior	6–8c	0.53 (0.51–0.55)	0.50 (0.48–0.52)	–	–	–
ILF-R
Posterior	9–14b	0.51 (0.49–0.53)	0.48 (0.47–0.49)	–	–	–

^aSignificant for peak value, corrected, with at least two surrounding nodes.

^bSignificant for cluster size, corrected.

^cTrend for significance, cluster of at least 3 nodes, uncorrected.