Table 4 Differences in means for the different recurrence plot measures for the non-depressed(\(n=25\)) and depressed(\(n=21\)) groups.

From: Uncovering complexity details in actigraphy patterns to differentiate the depressed from the non-depressed

Property

\(Mean_N \pm SD\)

\(Mean_D \pm SD\)

t-statistic

p-value

Cohen’s d

DET

0.359±0.11

0.308±0.087

− 1.725

0.091

0.511

\(L_{avg}\)

2.436±0.195

2.334±0.142

− 2.018

0.050*

0.594

\(L_{ent}\)

0.853±0.21

0.725±0.202

− 2.104

0.041*

0.634

LAM

0.511±0.13

0.466±0.119

− 1.168

0.249

0.353

\(\frac{LAM}{DET}\)

1.446±0.09

1.517±0.11

2.336

0.025*

− 0.721

\(V_{avg}\)

3.079±0.475

2.864±0.367

− 1.731

0.090

0.512

\(V_{ent}\)

1.352±0.28

1.206±0.257

− 1.707

0.095

0.520

  1. The measures that show statistically significant (\(p<.05\)) differences are indicated with an *
  2. DET: Determinism; \(L_{avg}\): Average diagonal line length; \(L_{ent}\): Entropy of diagonal line distribution; LAM: Laminarity; \(\frac{LAM}{DET}\): Laminarity to determinism ratio; \(V_{avg}\): Average vertical line length; \(V_{ent}\): Entropy of vertical line distribution, \(Mean_N\): Mean of the non-depressed group; \(Mean_D\): Mean of the depressed group; SD: Standard deviation.
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