title: Health related quality of life and pain characteristics among Iranian patients suffering non-malignant chronic pain.
abstract: BACKGROUND
  Chronic pain is a frequent disability that negatively affects patient's quality of life. Understanding of the possible relation between sociodemographic and medical variables with Health Related Quality of Life (HRQL) may help identifying the multidimensionality of pain and risk factors that limit physical and psychological adjustment of the patients. The present study was done to find these possible relationships, based on using Medical Outcomes Survey-Short Form (SF-36).
  
  
  METHODS
  Among the patients who were referred to pain clinic of Iranian Pain Society, 101 consecutive outpatients were select based on the defined inclusion and exclusion criteria. All the participants in this study orally satisfied and were fully informed by a check list and SF-36 questionnaire. The possible impact of demographic variables, characteristics, diagnosis, analgesic use, smoking and opium addiction were collected as the first part of a routine pretreatment evaluation.
  
  
  RESULTS
  Our findings showed significant relation between HRQL and gender (P < 0.05), the rate of chronic pain in female was higher than male, and same results found for elderly patients compared to younger ones. Our findings also showed significant relation between employment and intensity of pain (p = 0.001) as, employed patients showed less physical and psychotic problems than unemployed ones. The mean average of intensity of pain in these patients was 7.5±2.2; few patients used alcohol (4%), opium (1%) and cigarette (10%). Large number of participants used analgesic (%78.2). No significant difference between sociodemographic features with pain duration and quality of life was found. In contrast our data showed significant difference between pain intensity and quality of life (p < 0.001).
  
  
  CONCLUSIONS
  Based on our findings it could be concluded that chronic pain in Iranian patients certainly leads to poor HRQL, the state is more serious in the elderly and female patients. Thus, in order to re-socialize the patients suffering chronic pain and decrease the impact of their pain on their life, these findings should be considered in any kind of pain relief therapy.
authors.affiliation: Associate Professor of Anatomy & Neuroscience, Department of Medical Basic Sciences, Faculty of Allied Medicine, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Seyed Behnamedin
authors.initials: SB
authors.lastname: Jameie
authors.forename: Narges Sadat
authors.initials: NS
authors.lastname: Shams-Hosseini
authors.forename: Atousa
authors.initials: A
authors.lastname: Janzadeh
authors.forename: Mohammad
authors.initials: M
authors.lastname: Sharifi
authors.forename: Mahdie
authors.initials: M
authors.lastname: Kerdari
keywords: Chronic pain; Health-related Quality of Life; SF-36 questionnaire