Fracturas de cadera en pacientes tratados con fármacos antipsicóticos. Estudio de cohortes históricas en Cataluña / Hip fractures in patients treated with antipsychotic drugs. Study of retrospective cohorts in Catalonia

Objetivo: Evaluar la incidencia de fractura de cadera en pacientes con tratamiento antipsicótico, comparándola con la de individuos que no han sido tratados con antipsicóticos.Diseño: Estudio de cohortes históricas de pacientes tratados con fármacos antipsicóticos (TAP) y pacientes sin tratamiento conocido (no TAP). El periodo de observación fue 2006-2014.Emplazamiento: Todos los equipos de atención primaria de Cataluña del Instituto Catalán de la Salud (ICS).Participantes: Pacientes mayores de 44 años con TAP de al menos 3 meses de duración. Cohorte control: selección aleatoria de pacientes no TAP emparejando por comorbilidades basales, sexo, edad y prescripción de fármacos (excluyendo psicofármacos). Se analiza un total de 22.010 pacientes.Mediciones principales Tasa de incidencia (×1.000 personas-año [PY]) de fractura de cadera en cada grupo (TAP y no TAP). Modelos de regresión de Cox para estimar riesgos ajustados (hazard ratio [HR]) añadiendo los psicofármacos como covariables. Resultados: La tasa de incidencia de fractura de cadera fue mayor en los pacientes TAP (5,83 frente a 3,58 fracturas por 1.000 PY), y es mayor en todos los estratos según sexo, edad y tipo de diagnóstico. El riesgo de sufrir una fractura de cadera fue un 60% mayor (HR: 1,60; IC95%: 1,34-1,92) en el grupo TAP que en el grupo no TAP. El riesgo fue mayor en el grupo con esquizofrenia (HR: 3,57; IC95%: 1,75-7,30), seguido del trastorno bipolar (HR: 2,61; IC95%: 1,39-4,92) y depresión (HR: 1,51; IC95%: 1,21-1,88). Conclusiones: Los pacientes con tratamiento antipsicótico presentan más riesgo de fractura de cadera que los que no han sido tratados con antipsicóticos.

ObjectiveTo evaluate the incidence of hip fracture in patients with antipsychotic treatment, comparing it with that of individuals who have not been treated with antipsychotics.DesignRetrospective cohort study of patients treated with antipsychotic drugs (TAP) and patients without known treatment (non-TAP). The observation period was 2006–2014.SiteAll primary care teams in Catalonia of the Catalan Health Institute (ICS).ParticipantsPatients older than 44 years with TAP lasting at least 3 months. Control cohort: random selection of non-TAP patients matching for baseline comorbidities and other variables. A total of 22,010 are analyzed.Main measurements Incidence rate (1000× person-years: PY) of hip fracture in each group (TAP and non-TAP). Cox regression models to estimate adjusted risks (hazard ratio: HR).ResultsThe hip fracture incidence rate was higher in TAP patients (5.83 vs 3.58 fractures per 1000 PY), and is higher in all strata according to sex, age and type of diagnosis. The risk of suffering a hip fracture was 60% higher (HR: 1.60 95% CI: 1.34–1.92) in the TAP group than in the non-TAP group. The risk was higher in the group with schizophrenia (HR: 3.57 95% CI: 1.75–7.30), followed by bipolar disorder (HR: 2.61; 95% CI: 1.39–4.92) and depression (HR: 1.51; 95% CI: 1.21–1.88).ConclusionsPatients with antipsychotic treatment have a higher risk of hip fracture than those who have not been treated with antipsychotics.

[Hip fractures in patients treated with antipsychotic drugs. Study of retrospective cohorts in Catalonia]. / Fracturas de cadera en pacientes tratados con fármacos antipsicóticos. Estudio de cohortes históricas en Cataluña.

OBJECTIVE: To evaluate the incidence of hip fracture in patients with antipsychotic treatment, comparing it with that of individuals who have not been treated with antipsychotics. DESIGN: Retrospective cohort study of patients treated with antipsychotic drugs (TAP) and patients without known treatment (non-TAP). The observation period was 2006-2014. SITE: All primary care teams in Catalonia of the Catalan Health Institute (ICS). PARTICIPANTS: Patients older than 44 years with TAP lasting at least 3 months. Control cohort: random selection of non-TAP patients matching for baseline comorbidities and other variables. A total of 22,010 are analyzed. Main measurements Incidence rate (1000× person-years: PY) of hip fracture in each group (TAP and non-TAP). Cox regression models to estimate adjusted risks (hazard ratio: HR). RESULTS: The hip fracture incidence rate was higher in TAP patients (5.83 vs 3.58 fractures per 1000 PY), and is higher in all strata according to sex, age and type of diagnosis. The risk of suffering a hip fracture was 60% higher (HR: 1.60 95% CI: 1.34-1.92) in the TAP group than in the non-TAP group. The risk was higher in the group with schizophrenia (HR: 3.57 95% CI: 1.75-7.30), followed by bipolar disorder (HR: 2.61; 95% CI: 1.39-4.92) and depression (HR: 1.51; 95% CI: 1.21-1.88). CONCLUSIONS: Patients with antipsychotic treatment have a higher risk of hip fracture than those who have not been treated with antipsychotics.