ArticleEuropean psychiatry : the journal of the Association of European Psychiatrists2020
Seasonality in schizophrenia-An analysis of a nationwide registry with 110,735 hospital admissions.
Article in European psychiatry : the journal of the Association of European Psychiatrists, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed.
- From weather to symptoms: Preliminary links between weather and inflammation in schizophrenia.Brain, behavior, & immunity - health · 2026Article
- When the Clock Shifts: A Comprehensive Review of Daylight-Saving Time (DST), Circadian Disruption, and Neuropsychological Risk in Chronic Mental Illness.Brain sciences · 2026Review
- Seasonal influences on DNA methylation at birth or at sampling time and their interaction with psychosis risk.Environmental epigenetics · 2026Article
- Effects of seasonal factors on brain function: Systematic review and future perspectives.iScience · 2025Article
- Experiences in Accessing Treatment Among Females with Schizophrenia: A Qualitative Study from Turkey.Healthcare (Basel, Switzerland) · 2025Article
- The Impact of Seasonality on Mental Health Disorders: A Narrative Review and Extension of the Immunoseasonal Theory.Journal of clinical medicine · 2025Review
- Seasonal variations in psychiatry outpatient service utilization in a tertiary health care center in subtropical arid regions of northwestern India.Indian journal of psychiatry · 2024Article
- A Systematic Review on the Impact of Seasonality on Severe Mental Illness Admissions: Does Seasonal Variation Affect Coercion?Healthcare (Basel, Switzerland) · 2023Review
- The Immunoseasonal Theory of Psychiatric Disorders.Journal of clinical medicine · 2023Article
- Beyond Patient Characteristics: A Narrative Review of Contextual Factors Influencing Involuntary Admissions in Mental Health Care.Healthcare (Basel, Switzerland) · 2023Review
- Validation of the Short Form of the Mood Instability Questionnaire-Trait (MIQ-T-SF) in the Korean General Population.Psychiatry investigation · 2023Article
- Seasonality of brain function: role in psychiatric disorders.Translational psychiatry · 2023Review
- Empagliflozin Protects against Haloperidol Experimentally-Induced Ovarian Toxicity.Pharmaceuticals (Basel, Switzerland) · 2023Article
- Declarative Memory Impairment and Emotional Bias in Recurrent Depression with a Seasonal Pattern: The Interplay between Emotion and Cognition in Seasonal Affective Disorder.Brain sciences · 2022Article
- Ordering Knowledge in the Markers of Psychiatric/Mental Disorders.Journal of clinical medicine · 2022Article
- Seasonal Effects on Hospitalizations Due to Mood and Psychotic Disorders: A Nationwide 31-Year Register Study.Clinical epidemiology · 2022Article
- EEG-responses to mood induction interact with seasonality and age.Frontiers in psychiatry · 2022Article
- Assessing evidence for seasonality of hospital admissions for schizophrenia in Queensland, Australia: a time series observational study.International journal of biometeorology · 2021Observational
- MUW researcher of the month.Wiener klinische Wochenschrift · 2021Article
- Psychiatric emergency visit trends and characteristics in a mental health epicenter in Istanbul during COVID-19 lockdown.Social psychiatry and psychiatric epidemiology · 2021Article
Corrections and comments
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Authors and funding
11 authors.
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Abstract
backgroundSeasonal patterns in hospitalizations have been observed in various psychiatric disorders, however, it is unclear whether they also exist in schizophrenia. Previous studies found mixed results and those reporting the presence of seasonality differ regarding the characteristics of these patterns. Further, they are inconclusive whether sex is an influencing factor. The aim of this study was therefore to examine if seasonal patterns in hospitalizations can be found in schizophrenia, with special regard to a possible influence of sex, by using a large national dataset.
methodsData on all hospital admissions within Austria due to schizophrenia (F20.0-F20.6) for the time period of 2003-2016 were included. Age standardized monthly variation of hospitalization for women and men was analyzed and the level of significance adjusted for multiple testing.
resultsThe database comprised of 110,735 admissions (59.6% men). Significant seasonal variations were found in the total sample with hospitalization peaks in January and June and a trough in December (p < 0.0001). No significant difference in these patterns was found between women and men with schizophrenia (p < 0.0001).
conclusionOur study shows that schizophrenia-related hospitalizations follow a seasonal pattern in both men and women. The distribution of peaks might be influenced by photoperiod changes which trigger worsening of symptoms and lead to exacerbations in schizophrenia. Further research is necessary to identify underlying factors influencing seasonal patterns and to assess whether a subgroup of patients with schizophrenia is especially vulnerable to the impact of seasonal variations.
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