Journal of Clinical Medicine Research, ISSN 1918-3003 print, 1918-3011 online, Open Access
Article copyright, the authors; Journal compilation copyright, J Clin Med Res and Elmer Press Inc
Journal website http://www.jocmr.org

Original Article

Volume 11, Number 12, December 2019, pages 825-833

Measuring Sleep Quality and Efficiency With an Activity Monitoring Device in Comparison to Polysomnography

Figures

Figure 1.
Figure 1. Flow chart. PSG: polysomnography; PAM: physical activity monitor.
Figure 2.
Figure 2. Regression analysis and identity plots. Total sleep time (TST) between Polar A300 and polysomnography (PSG). PAM: physical activity monitor.
Figure 3.
Figure 3. Regression analysis and identity plots. Sleep efficiency between Polar A300 and polysomnography (PSG). SE: standard error.
Figure 4.
Figure 4. Bland-Altman plots with the mean over 2 days. Upper/lower limits of agreement (LoA) and 95% confidence interval (CI) (over/under the means) of sleep efficiency between (SE) Polar A300 and polysomnography (PSG). SE: standard error.
Figure 5.
Figure 5. Bland-Altman plots with the mean over 2 days. Upper/lower limits of agreement (LoA) and 95% CI (over/under the means) of total sleep time (TST) between SE Polar A300 and polysomnography (PSG). SE: standard error.
Figure 6.
Figure 6. Regression analysis and identity plots. Steps per day between Polar A300 and Pittsburgh sleep quality index (PSQI).
Figure 7.
Figure 7. Regression analysis and identity plots. Sleep efficiency between Polar A300 and Pittsburgh sleep quality index (PSQI). PAM: physical activity monitor.
Figure 8.
Figure 8. Regression analysis and identity plots. Sleep efficiency between Polar A300 and multidimensional fatique inventory (MFI). PAM: physical activity monitor.
Figure 9.
Figure 9. Regression analysis and identity plots. Steps per day between Polar A300 and multidimensional fatique inventory (MFI). PAM: physical activity monitor.
Figure 10.
Figure 10. Regression analysis and identity plots. Total sleep time (TST) between Polar A300 and consensus sleep diary (CSD). PAM: physical activity monitor.

Tables

Table 1. Baseline Parameters (n = 26)
 
VariablesValue (mean ± SD) (min. - max.)
SD: standard deviation; BMI: body mass index; AHI: apnea-hypopnea index; PAL: physical activity level.
Age (years)54.8 ± 14.4 (27 - 86)
Sex (male/female)17/9
BMI (kg/m2)30.4 ± 4.8 (21 - 41)
AHI (per h)8.1 ± 9 (0 - 34)
Smoking (pack years)16.6 ± 4.8 (0 - 40)
PAL1.51 ± 0.1 (1.4 - 1.8)

 

Table 2. Comorbidities of the Patients
 
DiseasePatient count
RLS: restless leg syndrome; COPD: chronic obstructive pulmonary disease.
Arterial hypertension7
Asthma2
Hypothyreose2
RLS1
Diabetes mellitus (type II)1
Depression1
COPD1