Table 1.
Sample Characteristics
| Characteristics | n | % |
|---|---|---|
| Sex | ||
| Female | 26 | 27.7% |
| Male | 68 | 72.3% |
| Outcome Group | ||
| Low-risk negative | 35 | 37.2% |
| High-risk negative | 46 | 48.9% |
| High-risk positive | 13 | 13.8% |
| Race | ||
| Biracial/multiracial | 10 | 10.6% |
| Black/African American | 2 | 2.1% |
| White | 72 | 76.6% |
| Not reported | 10 | 10.6% |
| Ethnicity | ||
| Hispanic or Latino | 6 | 6.4% |
| Not Hispanic or Latino | 78 | 83.0% |
| Not reported | 10 | 10.6% |
| Mean | SD | |
|---|---|---|
| Age at Time of Scan, mo | 6.51 | 0.59 |
| Number of BOLD Frames (After Scrubbing) | 241.13 | 57.17 |
| 12-mo Behaviors | ||
| Age at time of assessment, mo | 12.48 | 0.49 |
| CSBS-DP IJA | 1.44 | 1.38 |
| RBS-R restricteda | 0.30 | 0.85 |
| RBS-R ritualistic-samenessa | 0.63 | 1.73 |
| MSEL fine motor (T score) | 56.21 | 9.59 |
| MSEL gross motor (T score) | 48.70 | 12.75 |
| 24-mo Behaviors | ||
| Age at time of assessment, mo | 24.57 | 1.09 |
| ADOS total CSSa | 2.05 | 1.94 |
| ADOS social affect CSSa | 2.39 | 1.98 |
| ADOS RRB CSSa | 2.91 | 2.53 |
All participants included in the study sample (n = 94) provided at least 150 noncensored functional connectivity magnetic resonance imaging frames at 6 months. High scores reflect typical behaviors, unless otherwise indicated.
ADOS, Autism Diagnostic Observation Schedule; BOLD, blood oxygen level–dependent; CSBS-DP, Communication and Symbolic Behavior Scales Developmental Profile; CSS, calibrated severity score; IJA, initiation of joint attention; MSEL, Mullen Scales of Early Learning; RBS-R, Repetitive Behavior Scale–Revised; RRB, restricted interest and repetitive behavior.
a
Variables for which high scores reflect atypical behaviors.