Table 7.
Actigraphy: TD Cohort Compared with ASD Subgroups
| TD | Autism | PDD | AD | Autism | PDD | AD | |
|---|---|---|---|---|---|---|---|
| P Value | P Value | P Value | |||||
| Starting time | 21:16 | 21:21 | 21:06 | 21:31 | 0.705 | 0.442 | 0.297 |
| Ending time | 07:06 | 06:50 | 07:02 | 07:31 | 0.154 | 0.684 | 0.074 |
| Duration, min | 591.40 | 570.63 | 595.10 | 603.713 | 0.077 | 0.738 | 0.339 |
| Activity | |||||||
| Mean | 21.53 | 29.96 | 23.96 | 29.992 | 0.0002 | 0.210 | 0.008 |
| SD | 42.82 | 53.44 | 46.38 | 50.088 | 0.0000 | 0.105 | 0.030 |
| Wake time, min | 121.83 | 133.25 | 122.11 | 159.236 | 0.309 | 0.982 | 0.048 |
| TST, min | 469.57 | 437.39 | 472.99 | 444.477 | 0.023 | 0.831 | 0.231 |
| % Sleep | 79.44 | 76.81 | 79.51 | 73.770 | 0.155 | 0.976 | 0.072 |
| SE, % | 84.21 | 84.01 | 85.30 | 79.960 | 0.897 | 0.551 | 0.124 |
| SOL, min | 21.71 | 34.09 | 32.54 | 38.353 | 0.0015 | 0.023 | 0.0007 |
| WASO, min | 87.46 | 83.58 | 80.02 | 110.945 | 0.637 | 0.439 | 0.107 |
| Wake episodes | |||||||
| > 1 min, no. | 20.44 | 17.39 | 17.31 | 20.101 | 0.022 | 0.033 | 0.841 |
| > 5 min, no. | 6.56 | 5.77 | 5.61 | 6.958 | 0.123 | 0.101 | 0.598 |
| Mean duration, min | 9.39 | 9.46 | 8.57 | 8.672 | 0.985 | 0.845 | 0.897 |
| Longest, min | 34.70 | 51.96 | 45.78 | 48.713 | 0.002 | 0.063 | 0.050 |
| Sleep episodes, no. | 19.91 | 16.94 | 16.82 | 19.584 | 0.023 | 0.034 | 0.846 |
Data are presented as mean and p values for typically developing (TD) children and children with autism spectrum disorders (ASD), including autism, pervasive developmental disorders (PDD), and Asperger disorder (AD). TST refers to total sleep time; SE, sleep efficiency; SOL, sleep-onset latency; WASO, wake time after sleep onset.