255091 Examining Dimensionality of a self-care self-efficacy instrument in Adult Chinese Cancer Patients

Monday, October 29, 2012

Changrong Yuan, Professor, PhD , Second Military Medical University (SMMU), College of Nursing, Shanghai, China
Jichuan Wang, PhD , School of Medicine, The George Washington University, Bowie, MD
Huijuan Qian, Master , Shanghai Jiaotong University Affiliated Sixth People's Hospital, Orthopedics Department, Shanghai, China
Yiyong Liu, MD, Vice-Dean , Shanghai Changzheng Hospital, Department of Medicine and Education, Shanghai, China
Pamela S. Hinds, PhD, RN, FAAN, Director , Children's National Medical Center, Director, Department of Nursing Research and Quality Outcomes; Associate Director, Clinical and Community Research Center, Washington D. C, DC
Objective: “Strategies Used by Patients to Promote Health” (SUPPH) is a patient-report instrument used to measure self-care self-efficacy among patients with cancer. Findings of dimensionality of the SUPPH vary. The purpose of this study was to examine the factorial structure of the Chinese version of the SUPPH (C-SUPPH) among Chinese cancer patients. Methods: The factorial structure of the C-SUPPH was assessed via two analytical strategies in 764 oncology participants in China. First-order confirmatory factor analysis (CFA) models were used to examine the dimensionality of the C-SUPPH; a second -order CFA was used to determine the existence of a factorial structure hierarchy of the C-SUPPH. Results: Compared with the 2-factor and 4-factor solutions, the 3-factor CFA of the C-SUPPH fits data better ( CFI=0.94, TLI=0.94, RMSEA=0.05, the close-fit test P=0.565, and SRMR=0.04), indicating that the 3-factor solution of the C-SUPPH is preferred in this study sample Our findings indicate that the C-SUPPH is composed of three factors: Positive Attitude, Stress Reduction, and Making Decisions; and together the three factors represent an underlying higher-order factor -- general self-care self-efficacy. Conclusion: The C-SUPPH has a valid factorial structure and can be readily applied to studying self-care self-efficacy of an adult cancer population in China.

Learning Areas:
Chronic disease management and prevention
Diversity and culture
Program planning
Public health administration or related administration
Social and behavioral sciences

Learning Objectives:
1) Examine dimensionality of a self-care self-efficacy instrument among Chinese cancer patients. 2) Discuss and demonstrate instrument development strategies. 3) Discuss and demonstrate application of a first-order confirmatory factor analysis (CFA) models and a second-order CFA in hierarchy data.

Keywords: Cancer, Self-Efficacy

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: He usually makes two presentations in the Statistics Sessions of the APHA annual meetings each year in many of the past years.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.