Table 1.
Descriptive characteristics of the study participants.
| Mean (SD) | Range | |
|---|---|---|
| VABS subdomains (n = 47) (developmental age) | ||
| Communication (years) | 2.7 (1.4) | (0.8–5.6) |
| Socialization (years) | 2.4 (1.3) | (0.9–6.5) |
| Daily living skills (years) | 3.1 (1.8) | (0.9–11.1) |
| Motor skills (years) | 3.4 (1.2) | (1.4–6.2) |
| ABC-C subscales (n = 52) | ||
| I: Irritability, agitation, crying | 43.3 (24.0) | (0.0–93.3) |
| II: Lethargy, social withdrawal | 27.4 (15.0) | (4.2–72.9) |
| III: Stereotypic behavior | 27.9 (19.3) | (0.0–76.0) |
| IV: Hyperactivity, Non-compliance | 50.5 (23.5) | (2.0–98.0) |
| CSHQ total score (n = 50) | 51.6 (9.4) | (34–78) |
| ASD-adapted CSHQ (n = 50) | ||
| Bedtime routine | 6.2 (2.4) | (4–12) |
| Sleep onset and duration | 10.4 (2.7) | (6–16) |
| Night waking | 7.8 (1.9) | (6–12) |
| Sleep disordered breathing | 3.5 (1.3) | (3–9) |
| Morning wakening | 6.7 (2.1) | (4–12) |
| Actigraphy sleep measures (n = 40) | ||
| TST (min)TST(hours) | 503.9 (52.5) | (372.0–603.1) |
| 8.40 (52.5) | (6.2–10.1) | |
| WASO (min) | 51.8 (23.0) | (21.9–126.1) |
| SE (%) | 82.6 (6.0) | (65.9–91.0) |
| SL (min) | 36.8 (23.6) | (4.0–94.1) |
| LSE (min) | 354.0 (90.0) | (184.8–553.1) |
| LSE (hours) | 5.9 (1.5) | (3.1–9.2) |
| Actigraphy circadian measures (n = 39) | ||
| IS | 0.59 (0.11) | (0.33–0.78) |
| IV | 0.65 (0.09) | (0.44–0.88) |
| RA | 0.93 (0.05) | (0.79–0.98) |
| MSF (hh:mm) | 02:07 (01:06) | (23:46–04:19) |
VABS, Vineland Adaptive Behavior Scales; ABC-C, Aberrant behavior checklist-community; ABC-I, Factor I Irritability; ABC-II, Factor II social withdrawal; ABC-III, Factor III stereotypic behavior; ABC-IV, Factor IV Hyperactivity; ABC-total, Total score on the ABC-C; CSHQ, Children’s sleep habits questionnaire; BR, bedtime resistance; SOD, sleep onset delay; SD, sleep duration; NW, night waking; Para, parasomnia; SDB, sleep disordered breathing; DS, daytime sleepiness; CSHQ total; Total score on the CSHQ; ASD-adapted CSHQ, ASD-adapted Children’s sleep habits questionnaire; BTR, Bedtime Routine; SO&D, Sleep Onset and Duration; NW, Night Wakening; SDB, Sleep Disordered Breathing; MoW, Morning Wakening; TST, Total Sleep Time; WASO, Wake After Sleep Onset; SE, Sleep Efficiency; SL, Sleep Latency; LSE, longest Sleep Episode; IS, Interdaily Stability; IV, Intradaily Variability; RA, Relative Amplitude; MSF, Midpoint of Sleep.