Table 3.
I-Irritability | II-Social Withdrawal | III-Stereotypy | IV-Hyperactivity | ||
---|---|---|---|---|---|
Sleep | R2 total | 7.0% | 6.0% | 7.0% | 0.8% |
Dominant predictor (R2) | LSE (2.5%) | TST (4.1%) | LSE (4.3%) | SL (0,3%) | |
Circadian | R2 total | 4.5% | 9.8% | 18.4% | 0.3% |
Dominant predictor (R2) | IS (1.7%) | MSF (5.2%) | MSF (15.8%) | RA (0.3%) | |
Sleep and Circadian | R2 total | 17.7% | 16.7% | 35.9% | 0.7% |
Dominant predictor (R2) | LSE (6.1%) | MSF (4.7%) | LSE & MSF * | RA (0.4%) |
* Complete dominance between LSE and MSF cannot be established. MSF accounted uniquely for 18.2% and LSE for 14.3% for the stereotypic behaviors factor. IV, intradaily variability; RA, relative amplitude; MSF, mid-point of sleep; ABC-I, Factor I Irritability; ABC-II, Factor II social withdrawal; ABC-III, Factor III stereotypic behavior; ABC-IV, Factor IV Hyperactivity; TST, total sleep time; LSE, longest sleep episode.