Table 3 Results of the qualitative interview of depressed subjects and healthy controls on their ruminative tendencies. Significant p-values and effect sizes are depicted in bold for reasons of clarity.

From: Amplitude of low frequency fluctuations (ALFF) of spontaneous and induced rumination in major depression: An fNIRS study

 

HC

MDD

t/χ2

p

OR/d

Process: dwell on thoughts

62%

100%

χ2 = 13.22

p < .001

OR = 1.62

Process: uncontrollability

15%

93%

χ2 = 32.77

p < .001

OR = 6.2

Process: focus on past

27%

68%

χ2 = 7.74

p < .01

OR = 2.52

Process: duration (hours/day)

0.23

2.8

t = 6.41

p < .001

d = 1.77

Process: impairment

11%

89%

χ2 = 32.64

p < .001

OR = 8.09

Thematic: personal relevance rated from 0 to 100%

64%

88%

t = 3.05

p < .01

d = 0.8

Thematic: job

23%

28%

χ2 = 0.21

p > .1

OR = 1.20

Thematic: relationships

46%

57%

χ2 = 0.21

p > .1

OR = 1.23

Thematic: personal failure

0%

46%

χ2 = 15.90

p < .001

OR = 25.14a

Emotion: guilt

8%

57%

χ2 = 14.48

p < .001

OR = 7.12

Emotion: shame

4%

50%

χ2 = 14.31

p < .001

OR = 12.5

Emotion: sadness

8%

65%

χ2 = 18.52

p < .001

OR = 8.13

Cognition: hopelessness

8%

71%

χ2 = 22.68

p < .001

OR = 8.87

Cognition: optimism in future

50%

25%

χ2 = 4.81

p > .1

OR = 0.5

Cognition: solution

54%

4%

χ2 = 12.41

p < .001

OR = 0.07

Cognition concreteness

57%

64%

χ2 = 0.25

p > .1

OR = 1.12

Cognition: counterfactual

27%

89%

χ2 = 20.95

p < .001

OR = 3.30

Behavior: action

54%

10%

χ2 = 11.63

p < .001

OR = 0.185

  1. All p-values are calculated as Fisher's exact tests.
  2. aComputed with Haldane-Anscombe correction.