265868 Quality of Life and Colorectal Cancer Screening Behaviors - MIMIC model analysis

Monday, October 29, 2012

Rie Suzuki, PhD , Department of Public Health & Health Sciences, University of Michigan-Flint, Flint, MI
Phyllis M. Wallace, DrPH, CHES , School of Public Health, Community Health Sciences, Boston University, Boston, MA
Eusebius Small, PhD, MSW , School of Social Work, University of Texas, Arlington, Arlington, TX
Quality of life (QOL) measures are often used to assess the effectiveness of cancer screening intervention programs in older adults. The major weakness in QOL use is that it is difficult to determine whether or not a high QOL score is associated with the improvement of the targeted cancer screening behaviors. There is evidence for the association between QOL and cancer screening behaviors. However, their interrelationships have received little investigation. The purpose of this study is to examine the associations of two latent variables (QOL and colorectal cancer screening behaviors (COLC)). Data were derived from a national representative sample of 32,841 aged 50 to 84 years from the National Health Interview Survey 2010. The QOL and the COLC were developed in the NHIS cancer file. Confirmatory factor analysis with multiple indicators multiple causes (MIMIC) model on the M-plus were used for data analysis. Most of the participants were Caucasian (68%) male (80%) who were married or live together (83%). The results revealed that COLC was weakly associated with QOL (β =.06, p< .05). Alternatively, the robust associations were observed in several demographic variables. Married or living together (β=.12, p <.05), having a usual source of care (β=.18, p <.01) and non-Hispanic (β=.16, p <.01) were associated with COLC. Non- Hispanic was also weakly associated with QOL (β=.07, p <.05). These findings indicated that QOL may not be strongly associated with COLC. The importance of the interpretation in QOL use of the colorectal cancer screening programs will be discussed.

Learning Areas:
Conduct evaluation related to programs, research, and other areas of practice
Social and behavioral sciences

Learning Objectives:
Identify the strengths and the weaknesses of QOL use for colorectal cancer screening programs Discuss the implication of these findings for strategies to improve program assessments Describe the usefulness of the MIMIC to assess the associations between the covariates and the latent variables.

Keywords: Quality of Life, Cancer Screening

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: Among my scientific interests has been the impact evaluation of the health education programs.
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.