{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,13]],"date-time":"2026-07-13T11:04:52Z","timestamp":1783940692434,"version":"3.55.0"},"reference-count":47,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2026,7,13]],"date-time":"2026-07-13T00:00:00Z","timestamp":1783900800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background\/Objectives: Mood disorders, such as major depressive disorder (MDD) and bipolar disorder (BD), along with obstructive sleep apnea (OSA), are prevalent conditions that have serious effects on affected individuals and public health. These issues have received more attention recently, as research shows there are similar risk factors and they can influence each other by worsening symptoms and treatment response. However, there is still no clear understanding of the extent of this co-occurrence and the factors that influence it. Methods: A systematic review of comorbid OSA and mood disorders was conducted from EMBASE, Ovid MEDLINE, Global Health, and APA PsycINFO (1 January 2013\u201325 July 2025), with meta-analyses applying random-effects models in R (metafor). Heterogeneity, publication bias, subgroup effects, and meta-regression analyses were performed by assessing demographic, clinical, and study quality variables. Results: Out of 6221 screened studies, 23 articles met eligibility criteria, yielding 2,380,986 OSA patients, with 446,495 comorbid mood disorders (MDD = 446,290; BD = 205), and 5724 mood disorder patients (MDD = 1987; BD = 3737) with 450 comorbid OSA. All meta-analyses demonstrated a significant prevalence of comorbidity, accompanied by substantial heterogeneity. Meta-regression analyses identified mean age (\u03b2 = 0.18, 95% CI 0.03\u20130.33, p = 0.02) and mean body mass index (\u03b2 = \u22120.18, 95% CI \u22120.32 to \u22120.04, p = 0.01) as significant moderators of OSA prevalence. Conclusions: This meta-analysis indicates a high prevalence of comorbidity between OSA and mood disorders, including MDD and BD, with significant heterogeneity. Age and body mass index emerged as significant moderators of OSA prevalence, emphasizing the need for systematic screening and tailored approaches in both clinical practice and research.<\/jats:p>","DOI":"10.3390\/jcm15145478","type":"journal-article","created":{"date-parts":[[2026,7,13]],"date-time":"2026-07-13T09:51:09Z","timestamp":1783936269000},"page":"5478","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Mood Disorders and Obstructive Sleep Apnea: A Systematic Review and Meta-Analysis"],"prefix":"10.3390","volume":"15","author":[{"given":"Buket","family":"Ye\u015filo\u011flu","sequence":"first","affiliation":[{"name":"Ko\u00e7 University Research Center for Translational Medicine, Ko\u00e7 University, 34010 Istanbul, T\u00fcrkiye"},{"name":"Department of Neuroscience, Graduate School of Health, Ko\u00e7 University, 34010 Istanbul, T\u00fcrkiye"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"\u00dcmit Haluk","family":"Ye\u015filkaya","sequence":"additional","affiliation":[{"name":"Department of Neurology, Division of Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA"},{"name":"Division of Sleep Medicine, Harvard Medical School, Boston, MA 02215, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Deniz","family":"Bengi","sequence":"additional","affiliation":[{"name":"Neuroscience Graduate Program, Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON L8P 0A6, Canada"},{"name":"Mood Disorders Treatment and Research Centre, Women\u2019s Health Concerns Clinic, St. Joseph\u2019s Healthcare Hamilton, Hamilton, ON L9C 0E3, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Meltem","family":"\u015een","sequence":"additional","affiliation":[{"name":"Department of Psychiatry, Kahta Governmental Hospital, 02400 Ad\u0131yaman, T\u00fcrkiye"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0001-4045","authenticated-orcid":false,"given":"Ceren","family":"Meri\u00e7 \u00d6zg\u00fcnd\u00fcz","sequence":"additional","affiliation":[{"name":"Ko\u00e7 University Research Center for Translational Medicine, Ko\u00e7 University, 34010 Istanbul, T\u00fcrkiye"},{"name":"Department of Neuroscience, Graduate School of Health, Ko\u00e7 University, 34010 Istanbul, T\u00fcrkiye"},{"name":"Department of Psychiatry, School of Medicine, Ac\u0131badem University, 34750 Istanbul, T\u00fcrkiye"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-4162-5386","authenticated-orcid":false,"given":"Bengisu","family":"Aksoy","sequence":"additional","affiliation":[{"name":"Ko\u00e7 University Research Center for Translational Medicine, Ko\u00e7 University, 34010 Istanbul, T\u00fcrkiye"},{"name":"Department of Neuroscience, Graduate School of Health, Ko\u00e7 University, 34010 Istanbul, T\u00fcrkiye"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1438-8240","authenticated-orcid":false,"given":"Deniz","family":"Ceylan","sequence":"additional","affiliation":[{"name":"Ko\u00e7 University Research Center for Translational Medicine, Ko\u00e7 University, 34010 Istanbul, T\u00fcrkiye"},{"name":"Department of Psychiatry, School of Medicine, Ko\u00e7 University, 34010 Istanbul, T\u00fcrkiye"},{"name":"Department of Psychiatry & Psychology, Mayo Clinic, Rochester, MN 55905, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9067-6538","authenticated-orcid":false,"given":"Y\u00fcksel","family":"Peker","sequence":"additional","affiliation":[{"name":"Ko\u00e7 University Research Center for Translational Medicine, Ko\u00e7 University, 34010 Istanbul, T\u00fcrkiye"},{"name":"Department of Pulmonology, Faculty of Medicine, Ko\u00e7 University, 34010 Istanbul, T\u00fcrkiye"},{"name":"Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden"},{"name":"Department of Clinical Sciences, Respiratory Medicine and Allergology, Faculty of Medicine, Lund University, 22100 Lund, Sweden"},{"name":"Division of Pulmonary Allergy and Critical Care Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,7,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2324","DOI":"10.1111\/jcmm.14170","article-title":"Depression in sleep disturbance: A review on a bidirectional relationship, mechanisms and treatment","volume":"23","author":"Fang","year":"2019","journal-title":"J. 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