Age and sex differences in outpatient antipsychotic prescriptions for schizophrenia: a claims data study.

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Title: Age and sex differences in outpatient antipsychotic prescriptions for schizophrenia: a claims data study.
Authors: Ramin, Tabea (AUTHOR), Peter, Jens-Uwe (AUTHOR), Schneider, Michael (AUTHOR), Heinze, Martin (AUTHOR), Riedel, Oliver (AUTHOR), Langbein, Sophie Hanna (AUTHOR), Haug, Ulrike (AUTHOR), Zolk, Oliver (AUTHOR)
Source: European Archives of Psychiatry & Clinical Neuroscience. Aug2025, Vol. 275 Issue 5, p1403-1417. 15p.
Subjects: Schizophrenia, Age differences, Gender differences (Psychology), Medical care use, Antipsychotic agents, Outpatient medical care, Drug dosage
Abstract: Most studies on antipsychotic efficacy and safety, including sex differences, focus on young schizophrenia patients. However, with an aging population, the number of older schizophrenia patients is increasing. This group faces challenges due to varying treatment responses and higher risks of adverse reactions, and guidelines often lack specific recommendations due to insufficient trials. Therefore, we investigated how age and sex influence antipsychotic prescribing practices in schizophrenia using the German Pharmacoepidemiological Research Database (GePaRD). We included patients diagnosed with schizophrenia (ICD-10 code F20.X) who had been prescribed at least one antipsychotic on an outpatient basis in at least two consecutive quarters in 2020, analyzing prescription data for 49,681 patients. Key findings include a notable preference for second-generation antipsychotics (SGAs) across all age groups, especially in younger patients, possibly due to their perceived better tolerability and efficacy. Treatment intensity with SGAs (expressed as the defined daily doses of SGAs per patient in 2020) initially increased with age, peaked among 35- to 44-year-olds, and then decreased, with the lowest treatment intensity in patients aged 65 years and older. The prescription patterns of specific SGAs and first-generation antipsychotics varied across age groups, highlighting the complexity of treatment decisions in schizophrenia management. Sex differences in prescription frequency and treatment intensity were also observed. The basic recommendation of the guideline to consider sex and age when prescribing antipsychotics therefore appears to be followed. Whether this prescribing practice is really optimal for older male and female schizophrenia patients, however, still needs to be proven in clinical trials. [ABSTRACT FROM AUTHOR]
Copyright of European Archives of Psychiatry & Clinical Neuroscience is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Age and sex differences in outpatient antipsychotic prescriptions for schizophrenia: a claims data study.
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  Data: <searchLink fieldCode="JN" term="%22European+Archives+of+Psychiatry+%26+Clinical+Neuroscience%22">European Archives of Psychiatry & Clinical Neuroscience</searchLink>. Aug2025, Vol. 275 Issue 5, p1403-1417. 15p.
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  Data: Most studies on antipsychotic efficacy and safety, including sex differences, focus on young schizophrenia patients. However, with an aging population, the number of older schizophrenia patients is increasing. This group faces challenges due to varying treatment responses and higher risks of adverse reactions, and guidelines often lack specific recommendations due to insufficient trials. Therefore, we investigated how age and sex influence antipsychotic prescribing practices in schizophrenia using the German Pharmacoepidemiological Research Database (GePaRD). We included patients diagnosed with schizophrenia (ICD-10 code F20.X) who had been prescribed at least one antipsychotic on an outpatient basis in at least two consecutive quarters in 2020, analyzing prescription data for 49,681 patients. Key findings include a notable preference for second-generation antipsychotics (SGAs) across all age groups, especially in younger patients, possibly due to their perceived better tolerability and efficacy. Treatment intensity with SGAs (expressed as the defined daily doses of SGAs per patient in 2020) initially increased with age, peaked among 35- to 44-year-olds, and then decreased, with the lowest treatment intensity in patients aged 65 years and older. The prescription patterns of specific SGAs and first-generation antipsychotics varied across age groups, highlighting the complexity of treatment decisions in schizophrenia management. Sex differences in prescription frequency and treatment intensity were also observed. The basic recommendation of the guideline to consider sex and age when prescribing antipsychotics therefore appears to be followed. Whether this prescribing practice is really optimal for older male and female schizophrenia patients, however, still needs to be proven in clinical trials. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of European Archives of Psychiatry & Clinical Neuroscience is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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              Text: Aug2025
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