title: Chronic use of benzodiazepines and cognitive deficit complaints: a risk factor study.
abstract: Benzodiazepines produce an anterograde amnesia after acute administration but whether their chronic use is hazardous to memory processes remains unclear. The present study analyses the risk of increasing cognitive complaints with chronic benzodiazepine use. Subjects seeking medical assistance at the General Internal Medicine Outpatient Clinic of Hospital de Clinicas de Porto Alegre, were interviewed before seeing physicians. They were asked about use of benzodiazepines, history of neurological and psychiatric diseases, use of alcohol, and deficits in remembering and learning as well as age, sex and level of education. Age (over 51 years), low level of education, a history of neurological and psychiatric diseases and use of benzodiazepines showed significant associations with cognitive complaints. After a conditional logistic regression analysis, benzodiazepine use lost its association with memory complaints. These data support the hypothesis that the chronic use of benzodiazepines does not carry a risk for cognitive deficits complaints.
authors.affiliation: Neurology Service, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: M L
authors.initials: ML
authors.lastname: Chaves
authors.forename: M
authors.initials: M
authors.lastname: Bianchin
authors.forename: S
authors.initials: S
authors.lastname: Peccin
authors.forename: F
authors.initials: F
authors.lastname: Rotta
authors.forename: C
authors.initials: C
authors.lastname: Jardim
authors.forename: A
authors.initials: A
authors.lastname: Gianlupi
authors.forename: L
authors.initials: L
authors.lastname: Eidt
mesh_terms: D000328:Adult; D000367:Age Factors; D014151:Anti-Anxiety Agents / Q000008:administration & dosage / Q000009:adverse effects*; D001569:Benzodiazepines; D003072:Cognition Disorders / Q000139:chemically induced* / Q000209:etiology; D004522:Educational Status; D005260:Female; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000150:complications; D008875:Middle Aged; D015995:Prevalence; D012307:Risk Factors; D013997:Time Factors
chemical_list: D014151:Anti-Anxiety Agents; D001569:Benzodiazepines