Gesundheitswesen 2017; 79(08/09): 656-804
DOI: 10.1055/s-0037-1605925
Poster
Georg Thieme Verlag KG Stuttgart · New York

Association between subjectively and objectively assessed sleep quality in German adolescents. Results from the GINIplus/LISAplus studies

C Flexeder
1   Helmholtz Zentrum München, Institute of Epidemiology I, Neuherberg
,
M Standl
1   Helmholtz Zentrum München, Institute of Epidemiology I, Neuherberg
,
D Berdel
2   Marien-Hospital Wesel, Department of Pediatrics, Wesel
,
A von Berg
2   Marien-Hospital Wesel, Department of Pediatrics, Wesel
,
J Heinrich
1   Helmholtz Zentrum München, Institute of Epidemiology I, Neuherberg
3   Ludwig Maximilians University Munich, University Hospital Munich, Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine, Munich
,
H Schulz
1   Helmholtz Zentrum München, Institute of Epidemiology I, Neuherberg
› Author Affiliations
Further Information

Publication History

Publication Date:
01 September 2017 (online)

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Background:

Sleep affects performance, health and quality of life in people. Moreover, adolescence is a crucial period when sleep behaviour undergoes substantial changes. For the assessment of sleep quantity and quality in epidemiological studies questionnaires and in recent years also objective measurements based on accelerometry are used, but their accordance is little explored under field conditions. The aim of this study was to analyse the association between subjective and objective sleep quality in adolescents.

Methods:

Between 2011 and 2014, 1376 subjects (53.9% females; mean age: 15.6 years) from the GINIplus and LISAplus cohorts were wearing wrist accelerometers (Actigraph GT3X) during night for one week and filling in sleep and activity diaries every day. Sleep efficiency evaluated according to the Sadeh algorithm (Sleep 1995) was used as an objective measure of sleep quality and the diary self-reported sleep quality (on a 1 to 6 scale) was taken up as its subjective counterpart. The association between the two sleep quality measures has been evaluated using bivariate tests and a linear mixed-effects model.

Results:

The subjective and the objective sleep quality measures show a significant association, although they are poorly correlated (Spearman correlation coefficient: ρ= 0.10). Most of the variance in the relationship between the actigraphic and the diary sleep quality measures occurs on a between-individual level. The relationship is significantly affected by self-reported wellbeing during the day before sleep, mental health given by the emotional Strengths and Difficulties Questionnaire score, pubertal status, day of the week, season of the year and study region (urban vs. rural).

Conclusion:

The low association observed between the perceived and the measured sleep quality in adolescents supports the current recommendation to complement subjective sleep quality reports with objective observations.