Table 4.
Correlation between sleep spindle parameters (stages 2, 3, and 4) and FSIQ, DQ, and age in children with ASD
| FSIQ | DQ | Age | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| r | P | 1−β | r | P | 1−β | r | P | 1−β | ||
| Stage 2 | Density* | 0.35 | 0.45 | 0.46 | −0.10 | 0.83 | 0.08 | 0.61 | 0.02* | 0.95 |
| Duration* | 0.18 | 0.70 | 0.15 | −0.12 | 0.45 | 0.09 | 0.45 | 0.11 | 0.69 | |
| Mean amplitude* | −0.08 | 0.87 | 0.07 | −0.66 | 0.11 | 0.98 | 0.06 | 0.85 | 0.06 | |
| Stage 3 | Density* | 0.36 | 0.43 | 0.48 | −0.25 | 0.59 | 0.25 | 0.40 | 0.16 | 0.58 |
| Duration* | 0.32 | 0.49 | 0.39 | −0.20 | 0.67 | 0.18 | −0.05 | 0.86 | 0.06 | |
| Mean amplitude* | −0.14 | 0.77 | 0.11 | −0.63 | 0.13 | 0.96 | 0.17 | 0.56 | 0.14 | |
| Stage 4 | Density* | 0.71 | 0.07 | 0.99 | −0.44 | 0.33 | 0.67 | −0.08 | 0.78 | 0.07 |
| Duration* | 0.43 | 0.34 | 0.65 | −0.33 | 0.46 | 0.41 | −0.33 | 0.26 | 0.41 | |
| Mean amplitude* | 0.40 | 0.38 | 0.58 | −0.59 | 0.16 | 0.93 | −0.15 | 0.61 | 0.12 | |
Pearson’s rank correlation coefficient. ASD, autism spectrum disorder; FSIQ, full-scale intelligence quotient; DQ, developmental quotient; r, correlation coefficient; P, p-value; 1−β, power.
* P < 0.05