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. 2016 Apr 14;7:136. doi: 10.3389/fphys.2016.00136

Table 2.

SampEn of normal, interictal, and ictal EEG recordings.

Feature Index A B C
Normal Interictal Ictal Normal Interictal Ictal Normal Interictal Ictal
1†,†,† 2.32 ± 0.18a 1.92 ± 0.38 1.67 ± 0.49b 2.29 ± 0.23a 1.89 ± 0.39 1.76 ± 0.44b 2.29 ± 0.21a 1.89 ± 0.41 1.84 ± 0.58b
2†,†,† 2.34 ± 0.21a 1.92 ± 0.38 1.72 ± 0.50b 2.31 ± 0.18a 1.90 ± 0.40 1.81 ± 0.48b 2.30 ± 0.16a 1.90 ± 0.47 1.83 ± 0.53b
3†,†,† 2.35 ± 0.17a 1.94 ± 0.37 1.78 ± 0.47b 2.31 ± 0.15a 1.93 ± 0.38 1.82 ± 0.44b 2.32 ± 0.15a 1.94 ± 0.42 1.84 ± 0.46b
4†,†,† 2.34 ± 0.16a 1.93 ± 0.37 1.81 ± 0.42b 2.31 ± 0.16a 1.91 ± 0.38 1.87 ± 0.41b 2.32 ± 0.15a 1.95 ± 0.44 1.89 ± 0.47b
5†,†,† 2.33 ± 0.17a 1.92 ± 0.34 1.83 ± 0.41b 2.32 ± 0.17a 1.92 ± 0.37 1.88 ± 0.39b 2.31 ± 0.17a 1.93 ± 0.39 1.93 ± 0.48b
6†,†,† 2.16 ± 0.38a 1.38 ± 0.50 1.43 ± 0.53b 2.11 ± 0.38a 1.33 ± 0.51 1.46 ± 0.42b 2.10 ± 0.32a 1.36 ± 0.54 1.50 ± 0.63b
7†,†,† 2.17 ± 0.38a 1.35 ± 0.49 1.46 ± 0.53b 2.11 ± 0.34a 1.30 ± 0.48 1.45 ± 0.46b 2.14 ± 0.36a 1.38 ± 0.59 1.55 ± 0.58b
8†,†,† 2.15 ± 0.35a 1.33 ± 0.48 1.50 ± 0.48b 2.16 ± 0.34a 1.32 ± 0.55 1.54 ± 0.43b 2.13 ± 0.35a 1.38 ± 0.52 1.52 ± 0.57b
9†,†,† 2.20 ± 0.34a 1.29 ± 0.48 1.54 ± 0.51b 2.12 ± 0.34a 1.32 ± 0.45 1.56 ± 0.42b 2.12 ± 0.34a 1.34 ± 0.52 1.56 ± 0.61b
10†,†,† 2.18 ± 0.35a 1.31 ± 0.52 1.55 ± 0.54b 2.16 ± 0.34a 1.29 ± 0.47 1.57 ± 0.35b 2.18 ± 0.33a 1.34 ± 0.57 1.60 ± 0.57b
11~20 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined Undefined

Values are given in Median ± IQR (inter quartile range). Results corresponding to different analyzing protocols are listed in columns A, B, and C, respectively.

† p < 0.001.

a

Interictal significantly different (p < 0.001) from Normal.

b

Ictal significantly different (p < 0.001) from Normal.

cIctal significantly different (p < 0.001) from Interictal. The p-values are indicated by Mann–Whitney U-test. Strings next to feature index indicate the significant levels for all three analyzing protocols, e.g., the string

†,†,†

indicates p < 0.001 for protocols A, B, and C. Feature index 1, 2, … , 20 indicate the [m, τ] combinations [2, 8], [2, 9], … ., [5, 12], respectively.