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Updated: Aug 5, 2026

Oral Health Assessment by Lay Personnel for Older Adults
Published on: February 2, 2020
Sleep and quality of life in the Austrian population
J Zeitlhofer1, A Schmeiser-Rieder, G Tribl
1Department of Neurology, University of Vienna. josef.zeitlhofer@univie.ac.at
Purpose:
To compare the self-reported estimation of sleep quality evaluated by the Pittsburgh Sleep Quality Index (PSQI) and life quality assessed by the Quality of Life Index (QLI).
Background:
The PSQI comprised 19 questions and assessed a wide variety of factors relating to sleep quality. The QLI consisted of 10 items for self assessment of different dimensions of life quality.
Subjects:
A representative Austrian sample (n = 1049) aged above 15 years.
Procedure:
Interviews in the homes of the participants.
Results:
32.1% could be classified as poor sleepers (37% females, 26.5% males). Sleep quality decreased with increasing age, especially in women. Overall quality of life was highest in younger (15-29 years) and lowest in elderly subjects (over 50 years). Life quality decreased with increasing age. Between subjective sleep quality and quality of life a moderate, significant correlation was found (r2= 0.6721).
Conclusions:
Complaints about a bad quality of sleep could be used as a screening method in the exploration of patients' quality of life (QoL).
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