Table 5.
Mean (SD) values for polysomnography and over-/underestimation (SD) of total sleep time, wake after sleep onset, and sleep efficiency for actigraphy settings by developmental age group
| Total Sleep Time (minutes) |
|||
|---|---|---|---|
| Preschool (n = 31) | School-Age (n = 48) | Adolescent (n = 28) | |
| PSG | 452.6 (35.7) | 450.1 (57.0) | 392.4 (81.7) |
| AMI: Sadeh | −51.0 (35.9)* | −27.2 (37.9)* | 12.9 (41.7) |
| AMI: Cole-Kripke | −24.2 (28.7)* | −6.9 (36.7) | 29.5 (40.1)* |
| Preschool (n = 32) | School-Age (n = 50) | Adolescent (n = 24) | |
| PSG | 452.2 (36.8) | 449.9 (56.1) | 388.6 (87.6) |
| PRMM: Medium | −23.0 (23.4)* | −7.8 (29.6) | 35.2 (31.3)* |
| PRMM: Low | −54.4 (27.0)* | −34.9 (33.1)* | 10.6 (30.3) |
| PRMM: High | 10.2 (23.1)† | 19.7 (27.2)* | 59.9 (37.0)* |
| Wake After Sleep Onset (minutes) |
|||
| Preschool (n = 31) | School-Age (n = 48) | Adolescent (n = 28) | |
| PSG | 57.2 (34.0) | 55.4 (35.6) | 78.4 (46.8) |
| AMI: Sadeh | 49.8 (38.2)* | 26.4 (35.9) | −4.5 (37.4) |
| AMI: Cole-Kripke | 22.9 (30.8)* | 7.0 (36.3) | −18.9 (36.2)† |
| Preschool (n = 32) | School-Age (n = 50) | Adolescent (n = 24) | |
| PSG | 52.2 (28.6) | 56.0 (34.6) | 77.7 (50.4) |
| PRMM: Medium | 29.4 (23.5)* | 11.0 (29.2)† | −20.4 (22.7)* |
| PRMM: Low | 60.9 (26.7)* | 37.2 (29.5)* | 1.2 (22.6) |
| PRMM: High | 0.0 (22.0) | −11.2 (26.9)† | −41.6 (25.0)* |
| Sleep Efficiency (percent) |
|||
| Preschool (n = 31) | School-Age (n = 48) | Adolescent (n = 28) | |
| PSG | 84.8 (5.5) | 84.4 (8.8) | 76.8 (14.8) |
| AMI: Sadeh | −9.5 (6.7)* | −5.1 (7.1)* | −2.6 (8.5) |
| AMI: Cole-Kripke | −4.5 (5.4)* | −1.3 (6.9) | −5.8 (8.1)* |
| Preschool (n = 32) | School-Age (n = 50) | Adolescent (n = 24) | |
| PSG | 85.0 (5.5) | 84.4 (8.7) | 76.4 (15.9) |
| PRMM: Medium | −4.3 (4.4)* | −1.5 (5.6) | 6.9 (6.2)* |
| PRMM: Low | −10.2 (5.0)* | −6.5 (6.2)* | 2.1 (6.0) |
| PRMM: High | 1.9 (4.3)† | 3.7 (5.2)* | 11.8 (7.2)* |
Negative values indicate an underestimate of TST/WASO/SE compared to PSG; positive values indicate an overestimate of TST/WASO/SE compared to PSG.
AMI, Ambulatory Monitoring Inc., Motionlogger Sleep Watch; PRMM, Phillips Respironics Mini-Mitter Actiwatch-2; PSG, Polysomnography.
*
Post hoc comparison vs. PSG, P ≤ 0.001.
†
Post hoc comparison vs. PSG, P ≤ 0.01