Table 1 Characteristics of participants included in analyses
| Â | Group | Â | |
|---|---|---|---|
| Â | HRA (SD) | LRC (SD) | p value |
N | 35 | 45 | Â |
Male: female | 18:17 | 23:22 | Â |
Race (% nonwhite) | 2.9 | 13.6 | Â |
Ethnicity (% Hispanic or Latino) | 8.6 | 2.3 | Â |
Family income level (% less than $75,000) | 16.7 | 15.2 | Â |
Maternal education (% less than college degree) | 32.3 | 8.3 | Â |
Geodesic sensor net:Hydrocel sensor net | 17:18 | 18:27 | Â |
NetAmp200:NetAmp300 | 25:10 | 32:13 | Â |
S1 trials | 26.8 (7.6) | 26.4 (7.4) | Â |
S2 trials | 22.2 (5.9) | 21.2 (6.5) | Â |
S3 trials | 18.3 (5.2) | 16.8 (4.6) | Â |
Deviant trials | 26.1 (7.1) | 25.3 (7.0) | Â |
6-month Mullen T-scores (31 HRA, 37 LRC) | Â | Â | Â |
 Visual reception | 49.69 (9.0) | 47.86 (7.3) | .378 |
 Fine motor | 48.38 (7.4) | 47.84 (6.9) | .765 |
 Receptive language | 49.54 (8.4) | 47.65 (5.7) | .293 |
 Expressive language | 45.85 (6.1) | 46.51 (5.8) | .662 |
12-month Mullen T-scores (38 HRA, 41 LRC) | Â | Â | |
 Visual reception | 53.03 (8.2) | 57.20 (8.4) | .036* |
 Fine motor | 58.73 (10.7) | 61.98 (8.3) | .146 |
 Receptive language | 42.94 (10.5) | 46.83 (7.4) | .067 |
 Expressive language | 46.15 (12.4) | 52.12 (8.1) | .015* |
18-month Mullen T-scores (33 HRA, 35 LRC) | Â | Â | |
 Visual reception | 48.33 (7.4) | 52.47 (7.9) | .035* |
 Fine motor | 51.97 (7.0) | 53.60 (6.0) | .313 |
 Receptive language | 43.40 (13.3) | 55.71 (12.8) | <.001** |
 Expressive language | 47.97 (9.5) | 52.89 (7.0) | .019* |
18-month ADOS (31 HRA, 35 LRC) | Â | Â | Â |
 Severity score | 2.66 (1.9) | 1.54 (0.9) | .002** |