title: Evolution of hospital spending with drug-related psychiatric hospital admissions.
abstract: OBJECTIVE
  To analyse the trend of expenditure on drug-related psychiatric hospital admissions in Maringá, Paraná, Brazil, from 1999 to 2012.
  
  
  METHODS
  Ecological time series research with secondary data from the hospital information system of the unified health system ("SIH-SUS"). The records of admissions with a main diagnosis of drug abuse were used to calculate average expenditure. Chapter V of the ICD-10 was used to classify the most frequent diagnoses, namely abuse of alcohol, cannabis, cocaine, and psychoactive substances. The trend was expressed using a polynomial regression model.
  
  
  RESULTS
  Average expenditure showed an increasing trend for cocaine and other psychoactive substances, and a decreasing trend for cannabis. Average expenditure for illicit drugs increased significantly.
  
  
  CONCLUSIONS
  The scarcity of economic studies on this subject calls for national studies that address expenditure with drug-related hospital admission to promote the implementation of a psychosocial, outpatient and hospital care network in accord with public healthcare expenditure.
authors: Universidade Estadual de Maringá (UEM), Programa de Pós-graduação em Enfermagem. Maringá, Paraná, Brasil.
authors: Robsmeire Calvo Melo
authors: RC
authors: Zurita
authors: Universidade Estadual de Maringá (UEM), Programa de Pós-graduação em Enfermagem. Maringá, Paraná, Brasil.
authors: Emiliana Cristina
authors: EC
authors: Melo
authors: Universidade Estadual de Maringá (UEM), Programa de Pós-graduação em Enfermagem. Maringá, Paraná, Brasil.
authors: Rosana Rosseto de
authors: RR
authors: Oliveira
authors: Universidade de São Paulo (USP), Faculdade de Saúde Pública, Departamento de Epidemiologia. São Paulo, São Paulo, Brasil.
authors: Maria do Rosário Dias de Oliveira
authors: Mdo R
authors: Latorre
authors: Universidade Estadual de Maringá (UEM), Programa de Pós-graduação em Enfermagem. Maringá, Paraná, Brasil.
authors: Thais Aidar de Freitas
authors: TA
authors: Mathias
mesh_terms: D001938:Brazil; D017721:Hospital Costs / Q000639:trends*; D006778:Hospitals, Psychiatric / Q000191:economics*; D006801:Humans; D010343:Patient Admission / Q000191:economics*; D019966:Substance-Related Disorders / Q000191:economics*; D013997:Time Factors