Incidence of new-onset diabetes mellitus among patients receiving atypical neuroleptics in the treatment of mental illness: evidence from a privately insured population

J Nerv Ment Dis. 2005 Jun;193(6):387-95. doi: 10.1097/01.nmd.0000165292.11527.16.

Abstract

The purpose of this study is to determine sociodemographic, clinical, and pharmacotherapeutic characteristics, especially use of atypical antipsychotics, associated with incident diabetes mellitus in a population of privately insured patients with mental health diagnoses. Patients with a mental health diagnosis stably medicated for a 3-month period during January 1999 through October 2000 and having no diabetes were followed through December 2000. Cox proportional hazards models were developed to identify antipsychotic medications associated with newly diagnosed diabetes. Of the 7381 patients identified, 339 developed diabetes, representing an annual incidence rate of 4.7%. Diabetes risk among the entire sample was lowest for risperidone (hazard ratio [HR] = 0.69; p < 0.05), while quetiapine (HR = 0.74), olanzapine (HR = 0.95), and clozapine (HR = 1.22) were not significantly different from first-generation antipsychotics. Diabetes risk was significantly lower among males receiving risperidone (HR = 0.49; p < 0.01) or quetiapine (HR = 0.50; p < 0.10), while diabetes risk among females did not differ significantly from first-generation antipsychotics for any atypical examined. These findings are substantially different from other reports.

Publication types

  • Comparative Study
  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adult
  • Antipsychotic Agents / adverse effects*
  • Antipsychotic Agents / therapeutic use
  • Benzodiazepines / adverse effects
  • Benzodiazepines / therapeutic use
  • Clozapine / adverse effects
  • Clozapine / therapeutic use
  • Diabetes Mellitus / chemically induced*
  • Diabetes Mellitus / epidemiology*
  • Dibenzothiazepines / adverse effects
  • Dibenzothiazepines / therapeutic use
  • Female
  • Follow-Up Studies
  • Humans
  • Incidence
  • Insurance Coverage / statistics & numerical data
  • Male
  • Mental Disorders / drug therapy*
  • Olanzapine
  • Proportional Hazards Models
  • Quetiapine Fumarate
  • Risk Factors
  • Risperidone / adverse effects
  • Risperidone / therapeutic use
  • Sex Factors
  • United States / epidemiology

Substances

  • Antipsychotic Agents
  • Dibenzothiazepines
  • Benzodiazepines
  • Quetiapine Fumarate
  • Clozapine
  • Risperidone
  • Olanzapine