Table 2 Statistical results for gray matter volume reductions in OSA vs. controls as shown by SPM.

From: Reduced Regional Grey Matter Volumes in Pediatric Obstructive Sleep Apnea

Cluster #

Cluster

Peak

P (FWE)

voxels

P (FWE)

T

x,y,z (mm)

1

0

10098

0

7.73

−27 50 30

   

0

7.49

−23 33 45

   

0

7.03

−6 48 41

2

0

8845

0

7.29

20 17 56

   

0

6.99

27 39 44

   

0

6.76

26 30 51

3

0

6758

0

6.81

−36 −66 51

   

0

6.08

−44 −41 51

   

0

5.68

−20 −57 57

4

0

7483

0

6.14

41 −41 53

   

0

5.91

27–47 53

   

0

5.75

50–30 47

5

0

1601

0.001

5.48

8 −35 −35

   

0.001

5.41

−2 −27 −24

6

0.011

138

0.014

4.77

44 −81 −18

   

0.023

4.63

54 −65 −20

7

0.004

291

0.016

4.72

56 −60 14

   

0.021

4.65

41 −50 5

8

0.038

11

0.018

4.7

−51 −71 −18

9

0.017

82

0.019

4.68

−62 −30 15

10

0.03

26

0.023

4.64

−1 0 5

11

0.015

92

0.028

4.58

−2 53 −26

12

0.042

5

0.03

4.56

26–17 45

13

0.033

20

0.033

4.53

−56–26 5

14

0.047

1

0.048

4.43

−68 −35 −2

15

0.047

1

0.05

4.42

−62 −9 2

  1. Each cluster has cluster-level P-value (FWE corrected) and number of voxels indicated. For each cluster one or more major peaks show p value (FWE corrected),t statistic, and location in template space. Other SPM results include: height threshold t = 4.42 (for P < 0.05, FWE); expected voxels per cluster = 92.4; expected number of clusters = 0.05; degrees of freedom = [1,211]; effective FWHM = 19.9 20.1 19.5 mm; voxel size = 1.5 mm.