title: Analysis of factors related to the use of opioid analgesics in regional cancer centers in Japan.
abstract: OBJECTIVE
  The use of opioid analgesics and nonopioid medicines for the treatment of various symptoms in regional cancer centers is considered to be an index of the effectiveness of the structural plan for palliative care in such institutions. The present study aimed to establish an accurate representation of the actual use of opioid analgesics for palliative care in regional cancer centers.
  
  
  METHODS
  In November 2007, a questionnaire regarding the use of medications for palliative care was conducted in 288 regional cancer centers in Japan. Valid responses were received from 264 institutions (response rate, 91.4%).
  
  
  RESULTS
  All regional cancer centers reported using both opioid analgesics and nonopioid medicines. However, regarding opioid analgesics, the use of each standard strength ranged from 7% to 100%. The total amount of opioid analgesics used was 1739.6 +/- 1216.5 g (mean +/- SD). Factors found to be significantly related to the total amount of opioid analgesics used in an institution were the number of opioid analgesic medicines in use (p = 0.008), the number of inpatients with cancer (p < 0.001), the number of deaths among patients with cancer (p < 0.001), and the number of beds (p < 0.001).
  
  
  CONCLUSIONS
  Increase in the amount of opioid analgesics might improve the quality of palliative care at regional cancer centers.
authors.affiliation: Department of Drug Safety Management, School of Pharmacy, Tokyo University of Pharmacy and Life Science, Tokyo, Japan. sugi-tky@umin.ac.jp
authors.forename: Munetoshi
authors.initials: M
authors.lastname: Sugiura
authors.forename: Mitsunori
authors.initials: M
authors.lastname: Miyashita
authors.forename: Kazuki
authors.initials: K
authors.lastname: Sato
authors.forename: Satoru
authors.initials: S
authors.lastname: Tsuneto
authors.forename: Motohiro
authors.initials: M
authors.lastname: Matoba
authors.forename: Motohiko
authors.initials: M
authors.lastname: Sano
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Shima
mesh_terms: D000701:Analgesics, Opioid / Q000008:administration & dosage*; D002173:Cancer Care Facilities; D019538:Health Care Surveys; D006801:Humans; D007564:Japan; D009369:Neoplasms / Q000150:complications* / Q000188:drug therapy; D010146:Pain / Q000188:drug therapy* / Q000209:etiology; D010166:Palliative Care / Q000379:methods* / Q000706:statistics & numerical data; D019057:Quality-Adjusted Life Years
chemical_list: D000701:Analgesics, Opioid