Publicación:
Effects of long-term antipsychotics treatment on body weight: A population-based cohort study

dc.contributor.author Bazo-Alvarez J.C. es_PE
dc.contributor.author Morris T.P. es_PE
dc.contributor.author Carpenter J.R. es_PE
dc.contributor.author Hayes J.F. es_PE
dc.contributor.author Petersen I. es_PE
dc.date.accessioned 2024-05-30T23:13:38Z
dc.date.available 2024-05-30T23:13:38Z
dc.date.issued 2020
dc.description.abstract Background: Antipsychotics are often prescribed for long-term periods, however, most evidence of their impact on body weight comes from short-term clinical trials. Particularly, impact associated with dosage has been barely studied. Aims: The aim of this study was to describe the short- and long-term change in body weight of people initiated on high or low doses of the three most commonly prescribed second-generation antipsychotics. Methods: Retrospective cohorts of individuals with a diagnosed psychotic disorder observed from 2005 to 2015 in the UK primary care. The exposure was the first prescription of olanzapine, quetiapine or risperidone. The main outcome was change in body weight four years before and four years after initiation of antipsychotic treatment, stratified on sex and ‘low’ or ‘high’ dose. Results: In total, 22,306 women and 16,559 men were observed. Olanzapine treatment was associated with the highest change in weight, with higher doses resulting in more weight gain. After 4 years, given a high dose of olanzapine (> 5 mg), women gained on average +6.1 kg; whereas given a low dose (⩽ 5 mg), they gained +4.4 kg. During the first six weeks of olanzapine treatment, they gained on average +3.2 kg on high dose and +1.9 kg on low dose. The trends were similar for men. Individuals prescribed risperidone and quetiapine experienced less weight gain in both the short- and long-term. Conclusions: Olanzapine treatment was associated with the highest increase in weight. Higher doses were associated with more weight gain. Doctors should prescribe the lowest effective dose to balance mental-health benefits, weight gain and other adverse effects. © The Author(s) 2019.
dc.description.sponsorship Fondo Nacional de Desarrollo Científico y Tecnológico - Fondecyt
dc.identifier.doi https://doi.org/10.1177/0269881119885918
dc.identifier.scopus 2-s2.0-85075119966
dc.identifier.uri https://hdl.handle.net/20.500.12390/2627
dc.language.iso eng
dc.publisher SAGE Publications Ltd
dc.relation.ispartof Journal of Psychopharmacology
dc.rights info:eu-repo/semantics/openAccess
dc.rights.uri https://creativecommons.org/licenses/by/4.0/
dc.subject weight gain
dc.subject Antipsychotic agents es_PE
dc.subject dopamine es_PE
dc.subject electronic health records es_PE
dc.subject interrupted time series analysis es_PE
dc.subject noradrenaline es_PE
dc.subject serotonin es_PE
dc.subject.ocde http://purl.org/pe-repo/ocde/ford#3.02.25
dc.title Effects of long-term antipsychotics treatment on body weight: A population-based cohort study
dc.type info:eu-repo/semantics/article
dspace.entity.type Publication
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