Table 1 Results obtained from the EEG parameters evaluated in the visual analysis, expressed as mean, standard deviation, statistical significance, and cut-off points of maximum likelihood to discriminate both study groups.

From: Assessment of neonatal EEG background and neurodevelopment in full-term small for their gestational age infants

EEG variables

Interrater agreement ICC (95% CI)b

Group of study

Sig.

Cut-off pointsc

SGA (n = 45)

AGA (n = 44)

Mean ± SD

Artifact-free tracing (minutes)a

0.89 (0.85–0.97)

35 ± 8.70

28 ± 14.70

0.097

–

% Tracé alternant

0.93 (0.90–0.96)

26.37 ± 20.72

51.94 ± 21.18

<0.001

<30%

% Discontinuous tracing

0.97 (0.96–0.98)

37.62 ± 26.79

5.53 ± 13.032

<0.001

>11%

% Asynchony

0.76 (0.60–0.89)

10.87 ± 8.36

4.72 ± 5.38

<0.001

>7%

% Asymmetry

0.87 (0.81–0.95)

11.68 ± 8.58

2.65 ± 4.20

<0.001

>5%

% Bursts with Delta Brushes

0.83 (0.68–0.92)

23.78 ± 18.04

6.45 ± 6.13

<0.001

>11%

Maximum IBI duration (s)

0.77 (0.66–0.85)

6.84 ± 2.60

2.82 ± 2.67

<0.001

>5 s.

No. transients/hour

0.73 (0.61–0.89)

17.68 ± 13.02

8.20 ± 6.48

<0.001

>11

  1. ICC intraclass correlation coefficient
  2. aTime (minutes) of artifact-free EEG tracing only including trace alternant and discontinuous pattern
  3. bThe significance of interrater reliability for all EEG variables was P  <  0.001
  4. cCut-off points obtained from of the ROC curve analysis with a positive predictive value  >80% and P value  < 0.001 belonging to the group of SGA infants
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