From: EEG complexity as a biomarker for autism spectrum disorder risk
 | Age | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
 | 6 months | 9 months | 12 months | 18 months | 24 months | |||||
Parameter | HRA | CON | HRA | CON | HRA | CON | HRA | CON | HRA | CON |
Number of infants | 14 | 16 | 16 | 12 | 23 | 17 | 15 | 7 | 14 | 9 |
Males, n = 59 | 6 | 6 | 8 | 4 | 10 | 6 | 8 | 3 | 4 | 4 |
Females, n = 84 | 8 | 10 | 8 | 8 | 13 | 11 | 7 | 4 | 10 | 5 |
Total, N = 143 | 30 | 28 | 40 | 22 | 23 | |||||
Demographic information | ||||||||||
   Mean age, days | 189 | 185 | 272 | 273 | 366 | 362 | 549 | 541 | 725 | 727 |
   SD | 11.7 | 8.6 | 5.1 | 3.6 | 9.4 | 9.0 | 12.4 | 6.2 | 9.1 | 12.4 |
   Mean height, in | 26.5 | 26.1 | 27.8 | 27.2 | 29.8 | 29.5 | 32.1 | 32.1 | 34.1 | 34.8 |
   SD | 1.9 | 1.0 | 0.7 | 1.6 | 1.0 | 1.5 | 1.7 | 1.2 | 1.1 | 1.2 |
   P value | 0.46 | 0.18 | 0.53 | 0.97 | 0.24 | |||||
   Mean head circumference, mm | 434 | 435 | 459 | 447 | 465 | 466 | 484 | 481 | 492 | 493 |
   SD | 12.7 | 12.2 | 13.7 | 15.8 | 12.5 | 18.0 | 11.4 | 18.8 | 16.7 | 17.2 |
   P value | 0.93 | 0.04 | 0.87 | 0.61 | 0.53 | |||||
mMSE over channel groups | ||||||||||
   Total mMSE | 2.02 | 1.93 | 2.07 | 2.02 | 2.05 | 1.87 | 2.16 | 1.97 | 2.07 | 1.96 |
   SD | 0.15 | 0.21 | 0.20 | 0.36 | 0.20 | 0.35 | 0.22 | 0.10 | 0.14 | 0.15 |
   P value | 0.17 | 0.71 | 0.07 | 0.01 | 0.13 | |||||
   Frontal mMSE | 2.02 | 1.93 | 2.12 | 2.08 | 2.10 | 1.94 | 2.18 | 2.01 | 2.08 | 2.00 |
   SD | 0.15 | 0.21 | 0.20 | 0.36 | 0.20 | 0.35 | 0.22 | 0.12 | 0.11 | 0.13 |
   P value | 0.04 | 0.39 | 0.11 | 0.04 | 0.21 | |||||
   Left frontal mMSE | 1.94 | 1.81 | 1.94 | 1.91 | 2.01 | 1.82 | 2.06 | 1.91 | 2.03 | 1.88 |
   SD | 0.15 | 0.20 | 0.20 | 0.31 | 0.16 | 0.32 | 0.21 | 0.13 | 0.13 | 0.15 |
   P value | 0.05 | 0.72 | 0.04 | 0.07 | 0.03 |