Table 1. Mean (SE) Values for Polysomnography and Over/Underestimation (SE) of Sleep Onset Latency for Actigraphy Settings by Developmental Age Group.
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Preschool AMI n=28, PRMM n=29 |
AMI: Sadeha | AMI: Cole-Kripkea | PRMM: Mediumc | PRMM: Lowb | PRMM: Highb |
|---|---|---|---|---|---|
| PSG | 25.5 (3.2) | 25.5 (3.2) | 27.5 (3.2) | 27.5 (3.2) | 27.5 (3.2) |
| 3 minute rule | 3.5 (1.6) | 4.9 (1.5) | -11.3 (3.1)* | -7.3 (2.6) | -15.0 (2.9)* |
| 5 minute rule | 6.0 (2.8) | 4.9 (1.5) | -8.0 (2.7) | -6.0 (2.5) | -14.5 (2.9)* |
| 10 minute rule | 6.3 (2.8) | 7.9 (2.8) | -2.8 (2.1) | 0.0 (1.8) | -6.8 (2.3) |
| 15 minute rule | 7.4 (2.4) | 9.0 (2.5)* | -0.5 (1.5) | 2.0 (2.3) | -4.1 (1.8) |
| 20 minute rule | 7.4 (2.4) | 9.0 (2.5)* | 0.8 (2.0) | 6.6 (2.9) | -1.9 (2.2) |
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School-Age AMI n=40, PRMM n=40 |
AMI: Sadehc | AMI: Cole-Kripkeb | PRMM: Mediumb | PRMM: Lowb | PRMM: Highb |
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| PSG | 23.2 (2.6) | 23.2 (2.6) | 24.6 (2.8) | 24.6 (2.8) | 24.6 (2.8) |
| 3 minute rule | 2.2 (1.5) | 4.5 (1.5) | -8.7 (2.7) | 5.9 (2.7) | -13.7 (2.9)* |
| 5 minute rule | 3.4 (1.1) | 5.5 (1.7) | -7.6 (2.8) | -4.8 (2.7) | -11.4 (2.8)* |
| 10 minute rule | 4.4 (1.4) | 6.6 (1.7)* | -1.8 (2.7) | 0.5 (2.5) | -5.0 (2.8) |
| 15 minute rule | 4.9 (1.6) | 8.7 (2.4)* | 2.0 (2.7) | 4.6 (3.1) | -2.0 (2.7) |
| 20 minute rule | 7.9 (2.5) | 9.8 (2.5)* | 4.8 (3.4) | 8.9 (3.2) | -1.3 (2.6) |
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Adolescent AMI n=21, PRMM n=18 |
AMI: Sadeh | AMI: Cole-Kripke | PRMM: Mediumb | PRMM: Low | PRMM: High |
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| PSG | 23.9 (4.2) | 23.9 (4.2) | 22.1 (4.4) | 22.1 (4.4) | 22.1 (4.4) |
| 3 minute rule | -4.7 (3.7) | -8.3 (4.2) | -14.3 (4.5) | -12.4 (4.5) | -16.3 (4.4) |
| 5 minute rule | -4.1 (3.8) | -8.0 (4.2) | -14.1 (4.4) | -12.7 (4.5) | -15.6 (4.6) |
| 10 minute rule | -4.1 (3.8) | -7.4 (4.4) | -11.6 (3.6) | -7.2 (3.3) | -14.5 (4.4) |
| 15 minute rule | -4.1 (3.8) | -7.4 (4.4) | -5.7 (3.5) | -2.5 (2.8) | -11.6 (4.1) |
| 20 minute rule | -2.5 (2.7) | -2.2 (2.6) | -4.2 (3.1) | -0.6 (3.9) | -7.1 (3.1) |
Note. Negative values indicate an underestimate of SOL compared to PSG, positive values indicate an overestimate of SOL compared to PSG.
AMI = Ambulatory Monitoring Inc., Motionlogger Sleep Watch; PRMM = Phillips Respironics Mini-Mitter Actiwatch-2; PSG = Polysomnography
a
Multivariate analysis (Wilks' Lambda) significant, p≤.001
b
Multivariate analysis (Wilks' Lambda) significant, p≤.01
c
Multivariate analysis (Wilks' Lambda) significant, p≤.05
*
Post-hoc comparison vs. PSG, p≤.001