Markus P Anders1, Jürgen Breckenkamp2, Maria Blettner3, Brigitte Schlehofer4, Gabriele Berg-Beckhoff5. 1. 1 Association of Dermatological Prevention, Hamburg, Germany anders@unserehaut.de markus_anders@gmx.de. 2. 2 Faculty of Health Sciences, Department of Epidemiology and International Public Health, Bielefeld University, Bielefeld, Germany. 3. 3 Institute of Medical Biostatistics, Epidemiology and Informatics, University Medical Center, Mainz, Germany. 4. 4 Unit of Environmental Epidemiology, German Cancer Research Centre, Heidelberg, Germany. 5. 5 Unit for Health Promotion Research, University of Southern Denmark, Esbjerg, Denmark.
Abstract
BACKGROUND: Good sleep quality is essential for recovery. The risk factors of sleep disorders have been extensively investigated, but there is sparse information on the association of socioeconomic factors with a person's sleep quality. The aim of the present analysis is to investigate this association, taking particularly the effect of health confounders into consideration. METHODS: The data were extracted from the cross-sectional QUEBEB Study. In total, the study sample consisted of 3281 participants (1817 women and 1464 men, aged 16-72 years). Here socioeconomic status (SES) was collected from the baseline survey taken in 2004. Sleep quality for the same participants was measured with in-depth personal interviews in 2006 using the Pittsburgh Sleep Quality Index, together with other relevant characteristics (e.g. anxiety, depression and health status). Multiple logistic regression analyses were performed. RESULTS: People living in an urban environment with a high or medium SES have a greater probability of good sleep quality (odds ratio 1.65, 95% confidence interval 1.27-2.14; odds ratio 1.40, 95% confidence interval 1.16-1.69) than persons with a low SES. Anxiety and depression, but also health status, are also associated with sleep quality and can influence in part the socioeconomic levels seen in sleep quality. CONCLUSION: SES and sleep quality are associated. However, there are important additional determinants that influence the level of association between SES and sleep quality. Several factors, such as anxiety, depression and health status, are associated with poorer sleep quality, but at the same time, these factors occur more often within lower social classes.
BACKGROUND: Good sleep quality is essential for recovery. The risk factors of sleep disorders have been extensively investigated, but there is sparse information on the association of socioeconomic factors with a person's sleep quality. The aim of the present analysis is to investigate this association, taking particularly the effect of health confounders into consideration. METHODS: The data were extracted from the cross-sectional QUEBEB Study. In total, the study sample consisted of 3281 participants (1817 women and 1464 men, aged 16-72 years). Here socioeconomic status (SES) was collected from the baseline survey taken in 2004. Sleep quality for the same participants was measured with in-depth personal interviews in 2006 using the Pittsburgh Sleep Quality Index, together with other relevant characteristics (e.g. anxiety, depression and health status). Multiple logistic regression analyses were performed. RESULTS:People living in an urban environment with a high or medium SES have a greater probability of good sleep quality (odds ratio 1.65, 95% confidence interval 1.27-2.14; odds ratio 1.40, 95% confidence interval 1.16-1.69) than persons with a low SES. Anxiety and depression, but also health status, are also associated with sleep quality and can influence in part the socioeconomic levels seen in sleep quality. CONCLUSION: SES and sleep quality are associated. However, there are important additional determinants that influence the level of association between SES and sleep quality. Several factors, such as anxiety, depression and health status, are associated with poorer sleep quality, but at the same time, these factors occur more often within lower social classes.
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