Comorbidity between psychosis and eating disorders: a systematic review
Abstract Background Comorbidity has been reported between eating disorders and psychotic illnesses such as schizophrenia, and several hypotheses regarding their relationship have been proposed. Therefore, we aimed to systematically review studies involving patients who are affected by both psychotic...
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| Format: | Article |
| Language: | English |
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BMC
2025-05-01
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| Series: | Journal of Eating Disorders |
| Online Access: | https://doi.org/10.1186/s40337-025-01257-3 |
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| author | Oliver Rumle Hovmand Linda Lloyd Hughes Celeste Mary Egtved Sidse M. Arnfred |
| author_facet | Oliver Rumle Hovmand Linda Lloyd Hughes Celeste Mary Egtved Sidse M. Arnfred |
| author_sort | Oliver Rumle Hovmand |
| collection | DOAJ |
| description | Abstract Background Comorbidity has been reported between eating disorders and psychotic illnesses such as schizophrenia, and several hypotheses regarding their relationship have been proposed. Therefore, we aimed to systematically review studies involving patients who are affected by both psychotic symptoms and eating disorders (ED). Method We systematically searched three databases for all studies describing psychotic symptoms among patients diagnosed with eating disorders. We conducted and reported the systematic review following the PRISMA statement. Results We included 67 publications, of which 41 were case reports and 26 were descriptive studies. Most of the included studies described transient psychotic symptoms among individuals with ED or suggested comorbidity between schizophrenia and anorexia nervosa. Discussion The included studies were highly heterogeneous. The review suggests at least three different patterns of psychopathology: 1) patients with anorexia nervosa who experience transient psychotic symptoms in correlation with severe mental or physical stress; 2) patients suffering from comorbid schizophrenia and anorexia nervosa and fulfilling diagnostic criteria for both diagnoses; and 3) patients with psychotic illness who are experiencing disordered eating as part of their psychotic illness, but do not fulfill diagnostic criteria for it. Future research could conduct psychopathological follow-up on patients enrolled in treatment for these conditions. |
| format | Article |
| id | doaj-art-75d71e603d6b41239ce68037f7ea2a60 |
| institution | OA Journals |
| issn | 2050-2974 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | BMC |
| record_format | Article |
| series | Journal of Eating Disorders |
| spelling | doaj-art-75d71e603d6b41239ce68037f7ea2a602025-08-20T01:47:33ZengBMCJournal of Eating Disorders2050-29742025-05-0113111110.1186/s40337-025-01257-3Comorbidity between psychosis and eating disorders: a systematic reviewOliver Rumle Hovmand0Linda Lloyd Hughes1Celeste Mary EgtvedSidse M. Arnfred2Psychiatric Research Unit, Region Zealand Mental Health ServiceCenter for Eating and Feeding Disorders Research, Mental Health Center Ballerup, Copenhagen University Hospital—Mental Health Services CPHPsychiatric Research Unit, Region Zealand Mental Health ServiceAbstract Background Comorbidity has been reported between eating disorders and psychotic illnesses such as schizophrenia, and several hypotheses regarding their relationship have been proposed. Therefore, we aimed to systematically review studies involving patients who are affected by both psychotic symptoms and eating disorders (ED). Method We systematically searched three databases for all studies describing psychotic symptoms among patients diagnosed with eating disorders. We conducted and reported the systematic review following the PRISMA statement. Results We included 67 publications, of which 41 were case reports and 26 were descriptive studies. Most of the included studies described transient psychotic symptoms among individuals with ED or suggested comorbidity between schizophrenia and anorexia nervosa. Discussion The included studies were highly heterogeneous. The review suggests at least three different patterns of psychopathology: 1) patients with anorexia nervosa who experience transient psychotic symptoms in correlation with severe mental or physical stress; 2) patients suffering from comorbid schizophrenia and anorexia nervosa and fulfilling diagnostic criteria for both diagnoses; and 3) patients with psychotic illness who are experiencing disordered eating as part of their psychotic illness, but do not fulfill diagnostic criteria for it. Future research could conduct psychopathological follow-up on patients enrolled in treatment for these conditions.https://doi.org/10.1186/s40337-025-01257-3 |
| spellingShingle | Oliver Rumle Hovmand Linda Lloyd Hughes Celeste Mary Egtved Sidse M. Arnfred Comorbidity between psychosis and eating disorders: a systematic review Journal of Eating Disorders |
| title | Comorbidity between psychosis and eating disorders: a systematic review |
| title_full | Comorbidity between psychosis and eating disorders: a systematic review |
| title_fullStr | Comorbidity between psychosis and eating disorders: a systematic review |
| title_full_unstemmed | Comorbidity between psychosis and eating disorders: a systematic review |
| title_short | Comorbidity between psychosis and eating disorders: a systematic review |
| title_sort | comorbidity between psychosis and eating disorders a systematic review |
| url | https://doi.org/10.1186/s40337-025-01257-3 |
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