title: Depression and sleep quality in older adults: a meta-analysis.
abstract: The literature emphasizes depression and poor sleep quality as problems that affect many elderly individuals. However, these problems have been related in few studies and there is no meta-analysis performed so far on this relationship. The present research reviewed the studies performed on the subjective sleep quality in order to understand how it relates to depression in older adults. The review was conducted in January 2016 and comprised publications between 2005 and 2015. Based on the electronic databases Web of Science and EBSCO, we used the keywords 'sleep quality', 'depression', and 'older' to identify the empirical studies performed. After assessing the collected studies, we selected those that presented the elderly as participants, resulting in nine papers (N = 3069). A random-effects method was used to evaluate the relationship between depression and sleep. We found that an older person's lack of good sleep quality is significantly related with depression. The main limitation of this study was the difficulty in collecting a greater number of studies. Future research should consider the importance of additional variables (e.g. moderators) in order to understand and investigate viable interventions for prevention and health promotion in the elderly.
authors.affiliation: a Department of Psychology, Research Centre for Spatial and Organizational Dynamics , University of Algarve, Campus de Gambelas, Building 9 , Faro , Portugal.
authors.forename: Nathália B
authors.initials: NB
authors.lastname: Becker
authors.affiliation: a Department of Psychology, Research Centre for Spatial and Organizational Dynamics , University of Algarve, Campus de Gambelas, Building 9 , Faro , Portugal.
authors.forename: Saul N
authors.initials: SN
authors.lastname: Jesus
authors.affiliation: a Department of Psychology, Research Centre for Spatial and Organizational Dynamics , University of Algarve, Campus de Gambelas, Building 9 , Faro , Portugal.
authors.forename: Karine A D R
authors.initials: KADR
authors.lastname: João
authors.affiliation: a Department of Psychology, Research Centre for Spatial and Organizational Dynamics , University of Algarve, Campus de Gambelas, Building 9 , Faro , Portugal.
authors.forename: João N
authors.identifier: 0000-0002-9817-7300
authors.initials: JN
authors.lastname: Viseu
authors.affiliation: b Clinical and Health Psychology, Research Centre for Spatial and Organizational Dynamics , University of Algarve, Campus de Gambelas, Building 9 , Faro , Portugal.
authors.forename: Rute I S
authors.initials: RIS
authors.lastname: Martins
mesh_terms: D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D003866:Depressive Disorder / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology*; D005260:Female; D006293:Health Promotion; D006801:Humans; D008297:Male; D012893:Sleep Wake Disorders / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D013223:Statistics as Topic
keywords: Ageing; depression; meta-analysis; sleep quality