Table 1. Sample characteristics.
Statistical comparison between LL and HL samples. For categorical variables, chi-square (χ2) was applied. For continuous variables, we used two-tailed independent T-tests. p-values <0.05 are highlighted in bold.
| Measure [mean (SD)] | Low-likelihood | High-likelihood | p-value |
|---|---|---|---|
| Number of participants (n = 44) | 19 | 25 | |
| Number of EEG recordings (n = 83) | 39 | 44 | |
| 3 months EEG age (n = 18) | 3.3 ± 0.6 (n = 11) | 3.5 ± 0.3 (n = 7) | 0.309 |
| 6–9 months EEG age (n = 20) | 6.6 ± 0.8 (n = 9) | 7.1 ± 1.3 (n = 11) | 0.320 |
| 12–15 months EEG age (n = 20) | 13.0 ± 1.0 (n = 10) | 13.5 ± 1.4 (n = 10) | 0.371 |
| 18–21 months EEG age (n = 25) | 19.0 ± 1.1 (n = 9) | 18.7 ± 1.6 (n = 16) | 0.438 |
| Female biological sex | 4 (21.1%) | 12 (48.0%) | 0.066 (χ2) |
| Age at verbal outcome | 19.6 ± 2.4 (n = 16) | 19.7 ± 2.0 (n = 24) | 0.886 |
| Verbal outcome [DQ] | 104.3 ± 16.2 | 77.9 ± 22.2 | 0.001 |