Table 5 Comparison selected PSG indices with previous sleep studies in general children population (mean ± standard deviation)
From: Sleep problems among children with Fetal Alcohol Spectrum Disorders (FASD)- an explorative study
Current study | Montgomery- Downs [36] | Montgomery-Downs [36] | Goodwin [37] | |
|---|---|---|---|---|
Age, range, years | 2.9–12.6 | 3.2–5.9 | 6.0–8.6 | 6–11 |
N | 19 | 153 | 388 | 480 |
TST, min | 464 ± 50.4 | 475.2 ± 42.0 | 471.6 ± 43.7 | 487 ± 79.7 |
Sleep efficiency, %TIB | 84.8 ± 7.9 | 90.0 ± 7.0 | 89.3 ± 7.5 | 89.8 ± 5.8 |
Sleep latency, min | 24.7 ± 25.7 | 24.1 ± 25.6 | 23.0 ± 25.3 | 18.5 ± 21.0 |
W, %TIB | 15.2 ± 7.9 | 9.4 ± 7.3 | 8.1 ± 7.1 | |
N1, %TST | 4.5 ± 2.5 | 6.6 ± 4.8 | 7.1 ± 5.5 | 4.6 ± 3.3 |
N2, %TST | 52.5 ± 6.3 | 41.6 ± 7.1 | 46.1 ± 8.5 | 52.0 ± 6.1 |
N3, %TST | 26.8 ± 6.2 | S3: 6.6 ± 2.6 S4: 21.6 ± 6.2 | S3: 5.5 ± 2.9 S4: 18.5 ± 6.6 | 21.9 ± 6.9 |
REM, %TST | 16.2 ± 4.0 | 23.6 ± 4.8 | 22.2 ± 5.2 | 21.5 ± 5.0 |
Arousal index, events/h | 7.4 ± 2.2 | 9.0 ± 3.4 | 9.5 ± 5.3 | |
Total apnea index, events/h | 1.8 ± 1.8 | 0.86 ± 0.75 | 0.50 ± 0.52 | |
Central apnea index, events/h | 1.6 ± 1.5 | 0.82 ± 0.73 | 0.45 ± 0.49 | 0.28 ± 0.84 |
Obstructive apnea index, events/h | 0.2 ± 0.3 | 0.03 ± 0.1 | 0.05 ± 0.11 | 0.02 ± 0.27 |
Mixed apnea index, events/h | 0.1 ± 0.2 | 0.01 ± 0.05 | 0.01 ± 0.06 | |
Hypopnea index, events/h | 1.3 ± 3.0 | 0.03 ± 0.07 | 0.10 ± 0.18 | |
Apnea hypopnea index, events/h | 3.2 ± 4.4 | 0.90 ± 0.78 | 0.68 ± 0.75 | 0.90 ± 1.91 |
Minimal SaO2, % | 90.1 ± 3.1 | 92.7 ± 4.5 | 92.6 ± 3.6 | |
Average SaO2, % | 96.4 ± 1.2 |