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Table 7 Linear mixed effects analysis for functional connectivity global metrics. Exact values reported, but findings are interpreted only if significant after false discovery rate corrections

From: Brain connectomes in youth at risk for serious mental illness: an exploratory analysis

 

Model 0

AIC

BIC

Model 1

AIC

BIC

χ2

Sig

Model 2

AIC

BIC

χ2

Sig

 

-2LL

  

-2LL

  

Change

 

-2LL

  

change

 

Functional connectome density

-725.28

-719.28

-709.85

-736.31a

-726.31

-710.60

-11.03

0.01

-737.80

-719.80

-691.52

-1.49

n.s

Functional connectome intensity

-687.19

-681.19

-671.77

-694.37a

-684.37

-668.66

-7.18

0.05

-697.25

-679.25

-650.97

-2.88

n.s

Assortativity (z-score)

1099.39

1105.39

1114.81

1099.28

1109.28

1124.99

-0.11

n.s

1091.17

1109.17

1137.45

-8.11

n.s

Hierarchy (z-score)

811.92

817.92

827.35

810.52

820.52

836.23

-1.40

n.s

803.03

821.03

849.31

-7.49

n.s

Network efficiency

 Global

-937.42

-931.42

-922.00

-951.69a

-941.69

-925.98

-14.27

0.001

-953.09

-935.09

-906.81

-1.40

n.s

 Local

-809.46

-803.46

-794.04

-813.38

-803.38

-787.67

-3.92

n.s

-814.27

-796.27

-768.00

-0.89

n.s

Small world

 Clustering coefficient

-579.38

-573.38

-563.95

-582.73

-572.73

-557.02

-3.35

n.s

-583.61

-565.61

-537.33

-0.88

n.s

 ϒ (Gamma)

-164.84

-158.84

-149.41

-170.04

-160.04

-144.33

-5.20

n.s

-173.39

-155.39

-127.12

-3.35

n.s

 λ (Lambda)

-1184.65

-1178.65

-1169.23

-1195.13b

-1185.13

-1169.42

-10.48

0.01

-1198.17

-1180.17

-1151.89

-3.04

n.s

 Shortest path length

-641.04

-635.04

-625.62

-654.94a

-644.94

-629.23

-13.90

0.001

-656.49

-638.49

-610.22

-1.55

n.s

 σ (Sigma)

-188.55

-182.55

-173.12

-192.98

-182.98

-167.27

-4.43

n.s

-196.39

-178.39

-150.11

-3.41

n.s

 Synchronization (z-score)

1427.38

1433.38

1442.80

1420.21a

1430.21

1445.91

-7.17

0.05

1411.90

1429.90

1458.18

-8.31

n.s

  1. Model 0 = no fixed factors; Model 1 fixed factor = age, head movement; Model 2 fixed factor = age, group, head movement
  2. aSignificant effect of head movement
  3. bSignificant effect of age