Table 2 Locus coeruleus ANOVA results.

From: Locus coeruleus contrast and diffusivity metrics differentially relate to age and memory performance

 

MTC

DTI

NODDI

Whole

Subdiva

Hemisa

Whole

Subdiva

Hemisa

Whole

Subdiva

Hemisa

Age group

33.2

15.2

16.8

10.2

5.5

10.1

0.5

0.2

0.2

Metric

1968.7

n/a

n/a

13269.8

16163.7

12236.2

29737.2

21923.5

30665.1

Age group × metric

6.9

n/a

n/a

14.5

28.4

13.9

4.4

4.2

5.9

Sex

1.0

2.6

3.5

6.7

7.6

6.7

21.1

12.1

22.0

Sex × age group

1.6

6.2

5.3

1.2

1.2

1.1

0.4

 < 0.1

0.6

Sex × metric

2.4

n/a

n/a

3.4

4.7

3.8

14.6

9.8

14.4

Sex × age group × metric

1.0

n/a

n/a

2.1

3.0

2.3

4.1

5.5

4.4

Subdivision

n/a

68.5

n/a

n/a

119.5

n/a

n/a

0.8

n/a

Subdivision × age group

n/a

1.1

n/a

n/a

0.3

n/a

n/a

3.8

n/a

Subdivision × metric

n/a

n/a

n/a

n/a

42.9

n/a

n/a

123.6

n/a

Subdivision × age group × metric

n/a

n/a

n/a

n/a

23.6

n/a

n/a

3.2

n/a

Subdivision × sex

n/a

 < 0.1

n/a

n/a

 < 0.1

n/a

n/a

1.4

n/a

Subdivision × sex × age group

n/a

0.3

n/a

n/a

1.0

n/a

n/a

6.4

n/a

Subdivision × sex × metric

n/a

n/a

n/a

n/a

0.2

n/a

n/a

0.1

n/a

Subdivision × sex × age group × metric

n/a

n/a

n/a

n/a

0.1

n/a

n/a

1.4

n/a

Hemisphere

n/a

n/a

72.0

n/a

n/a

11.8

n/a

n/a

11.7

Hemisphere × age group

n/a

n/a

6.9

n/a

n/a

0.1

n/a

n/a

 < 0.1

Hemisphere × metric

n/a

n/a

n/a

n/a

n/a

0.2

n/a

n/a

43.5

Hemisphere × age group × metric

n/a

n/a

n/a

n/a

n/a

0.4

n/a

n/a

0.1

Hemisphere × sex

n/a

n/a

0.4

n/a

n/a

0.5

n/a

n/a

2.1

Hemisphere × sex × age group

n/a

n/a

0.1

n/a

n/a

0.1

n/a

n/a

1.0

Hemisphere × sex × metric

n/a

n/a

n/a

n/a

n/a

0.8

n/a

n/a

3.1

Hemisphere × sex × age group × metric

n/a

n/a

n/a

n/a

n/a

0.4

n/a

n/a

 < 0.1

  1. F statistics are provided for each ANOVA run using values from either the whole locus coeruleus (whole), its subdivisions (subdiv), or its hemispheres (hemis) for each dependent metric (MTC, DTI, NODDI). Significant effects at p < 0.05 are bolded.
  2. aThere are no effects of Metric for the subdivision and hemisphere analyses that were only run using average MTC because the maximum value appeared in just one subdivision or hemisphere.