title: The city of hope-quality of life-ostomy questionnaire: persian translation and validation.
abstract: BACKGROUND
  Since there is no disease-specific instrument for measuring quality-of-life (QOL) in Ostomy patients in Persian language.
  
  
  OBJECTIVE
  This study was designed to translate and evaluate the validity and reliability of City of Hope-quality of life-Ostomy questionnaire (COH-QOL-Ostomy questionnaire).
  
  
  METHODS
  This study was designed as cross-sectional study. Reliability of the subscales and the summary scores were demonstrated by intra-class correlation coefficients. Pearson's correlations of an item with its own scale and other scales were calculated to evaluated convergent and discriminant validity. Clinical validity was also evaluated by known-group comparisons.
  
  
  RESULTS
  Cronbach's alpha coefficient for all subscales was about 0.70 or higher. Results of interscale correlation were satisfactory and each subscale only measured a single and specified trait. All subscales met the standards of convergent and discriminant validity. Known group comparison analysis showed significant differences in social and spiritual well-being.
  
  
  CONCLUSIONS
  The findings confirmed the reliability and validity of Persian version of COH-QOL-Ostomy questionnaire. The instrument was also well received by the Iranian patients. It can be considered as a valuable instrument to assess the different aspects of health related quality-of-life in Ostomy patients and used in clinical research in the future.
authors.affiliation: Department of Surgery, Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors.forename: F
authors.initials: F
authors.lastname: Anaraki
authors.affiliation: Department of Surgery, Iranian Ostomy Society, Tehran, Iran.
authors.forename: M
authors.initials: M
authors.lastname: Vafaie
authors.affiliation: Department of Surgery, Division of Colon and Rectal Surgery, Bahman Hospital, Tehran, Iran.
authors.forename: R
authors.initials: R
authors.lastname: Behboo
authors.affiliation: Department of Surgery, Iranian Ostomy Society, Tehran, Iran.
authors.forename: S
authors.initials: S
authors.lastname: Esmaeilpour
authors.affiliation: Gastroenterology and Liver Disease Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors.forename: N
authors.initials: N
authors.lastname: Maghsoodi
authors.affiliation: Department of Prevention and Control of Diseases, Deputy of Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors.forename: A
authors.initials: A
authors.lastname: Safaee
authors.affiliation: Nursing Research and Education City of Hope Medical Center, City of Hope, United States of America.
authors.forename: M
authors.initials: M
authors.lastname: Grant
keywords: City of Hope-quality of life questionnaire-Ostomy questionnaire; Ostomy; Quality-of-life; Reliability; Validity