The City of Hope Quality of Life–Ostomy Questionnaire is a widely accepted scale to assess quality of life in ostomy patients. However, the validity and reliability of the Chinese version (C-COH) have not been studied.
The objective of the study was to assess the validity and reliability of the C-COH among ostomy patients sampled from Shanghai from August 2010 to June 2011.
Content validity was examined based on the reviews of a panel of 10 experts; test-retest was conducted to assess the item reliabilities of the scale; a pilot sample (n = 274) was selected to explore the factorial structure of the C-COH using exploratory factor analysis; a validation sample (n = 370) was selected to confirm the findings from the exploratory study using confirmatory factor analysis (CFA). Statistical package SPSS version 16.0 was used for the exploratory factor analysis, and Amos 17.0 was used for the CFA.
The C-COH was developed by modifying 1 item and excluding 11 items from the original scale. Four factors/subscales (physical well-being, psychological well-being, social well-being, and spiritual well-being) were identified and confirmed in the C-COH The scale reliabilities estimated from the CFA results for the 4 subscales were 0.860, 0.885, 0.864, and 0.686, respectively.
Findings support the reliability and validity of the C-COH.
The C-COH could be a useful measure of the level of quality of life among Chinese patients with a stoma and may provide important intervention implications for healthcare providers to help improve the life quality of patients with a stoma.
Author Affiliations: College of Nursing, Second Military Medical University, Shanghai, China (Ms Gao and Dr Yuan); Children’s Research Institute, Children’s National Medical Center, School of Medicine, The George Washington University, Washington, DC (Dr Wang); Department of Neurosurgery, Jinshan Hospital Affiliated to Fudan University, Shanghai, China (Dr Du); College of Medicine, Second Military Medical University, Shanghai, China (Dr Wu); Department of General Surgery of Changzheng Hospital, Shanghai, China (Ms Qian); and Department of Nursing Research and Quality Outcomes and Clinical and Community Research Center, Children’s National Medical Center, School of Medicine, The George Washington University, Washington, DC (DrHinds).
Dr Yuan is the principal investigator and mentor of this research project who was responsible for the entire study design and critical revisions to the manuscript; Dr Hinds supervised the study design and performed critical revisions of the article; Ms Gao performed the data collection, data analysis, and the drafting of the manuscript. Dr Wang helped with data reanalysis and performed critical revisions of the article; Dr Du, Dr Wu, and Ms Qian assisted in data collection and manuscript drafting.
This research was supported by the Natural Science Grant of Shanghai, China (project number 11ZR1447200).
The authors have no conflicts of interest to disclose.
Correspondence: Changrong Yuan, PhD, RN, College of Nursing, Second Military Medical University, 800 Xiangying Rd, Shanghai 200433, China (firstname.lastname@example.org).
Accepted for publication December 20, 2011.