title: [Validation of the Spanish version of the Brief Pain Inventory in patients with oncological pain].
abstract: OBJECTIVE
  Our goal was to validate the Spanish version of the Brief Pain Inventory (BPI) questionnaire used to measure the intensity of oncological pain and its impact on activities of daily living in patients with cancer.
  
  
  METHODS
  Patients with oncological pain were consecutively included in the study. These patients filled up the Spanish version of the BPI questionnaire (CBD) and the Rotterdam Symptom Checklist (RCSL) during the inclusion visit and again after 3-5 days (patients with clinically stable oncological pain) or after one month (patients with unstable oncological pain).
  
  
  RESULTS
  126 patients were assessed; 85.1% of them had suffered some episode of irruptive pain 24 hours prior to their inclusion in the study. 86.5% of patients fully completed the questionnaire. The CBD showed mild to moderate correlations with the patients perception of pain severity and with the presence of tumor dissemination. The <<psychological symptoms>> dimension of the RCSL displayed the highest correlation with the dimensions of the BPI (<<pain intensity>> and <<interference in activities of daily living>>). The internal consistency and the test-retest reliability between dimensions were good (0.87 and 0.89) and low to moderate (0.53 and 0.77), respectively. The CBD questionnaire was found to be a tool capable of detecting changes in pain intensity. The changes observed in the two CBD dimensions between study visits fairly reflected the patients perceived changes in pain intensity.
  
  
  CONCLUSIONS
  The Spanish version of BPI is valid for measuring the intensity of oncological pain and its impact on activities of daily living in conditions of usual clinical practice.
authors.affiliation: Unitat de Recerca en Resultats en Salut, Servei d'Epidemiologia Clínica i Salut Pública, Hospital de la Santa Creu i Sant Pau, Barcelona, España. xbadia@cochrane.es
authors.forename: Xavier
authors.initials: X
authors.lastname: Badia
authors.forename: Clemente
authors.initials: C
authors.lastname: Muriel
authors.forename: Alfredo
authors.initials: A
authors.lastname: Gracia
authors.forename: Juan Manuel
authors.initials: JM
authors.lastname: Núñez-Olarte
authors.forename: Núria
authors.initials: N
authors.lastname: Perulero
authors.forename: Rafael
authors.initials: R
authors.lastname: Gálvez
authors.forename: Joan
authors.initials: J
authors.lastname: Carulla
authors.forename: Charles S
authors.initials: CS
authors.lastname: Cleeland
mesh_terms: D000203:Activities of Daily Living; D000700:Analgesics / Q000627:therapeutic use; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000150:complications* / Q000188:drug therapy; D016522:Oncology Service, Hospital; D010146:Pain / Q000175:diagnosis* / Q000188:drug therapy / Q000209:etiology; D018710:Pain Clinics; D010147:Pain Measurement / Q000379:methods*; D010166:Palliative Care / Q000379:methods; D011788:Quality of Life; D011795:Surveys and Questionnaires; D014177:Translations; D016896:Treatment Outcome
chemical_list: D000700:Analgesics