Validity of the Process of Change for Colorectal Cancer Screening Among African Americans

• Published in: Annals of behavioral medicine Vol. 41; no. 3; pp. 271 - 283
• Main Authors: DuHamel, Katherine, Li, Yuelin, Rakowski, William, Samimi, Parisa, Jandorf, Lina
• Format: Journal Article
• Language: English
• Published: New York Springer-Verlag 01.06.2011; Oxford University Press
• Subjects: African Americans; African Americans - psychology; Aged; Colorectal cancer; Colorectal Neoplasms - diagnosis; Colorectal Neoplasms - prevention & control; Colorectal Neoplasms - psychology; Early Detection of Cancer - psychology; Factor Analysis, Statistical; Family Medicine; Female; General Practice; Health Behavior; Health Psychology; Humans; Male; Medical screening; Medicine; Medicine & Public Health; Middle Aged; Models, Psychological; Original Article; Reproducibility of Results; Screening; Validity; Transtheoretical model; Process of change; Colorectal cancer
• ISSN: 0883-6612; 1532-4796
• DOI: 10.1007/s12160-010-9250-0

Background Process of change (POC) is a construct of the transtheoretical model that proposes to promote healthy behaviors. Purpose African Americans participate in colorectal cancer (CRC) screening less often than whites, while disease onset is younger, and incidence and mortality from CRC are higher. Methods POC items for CRC screening were administered to 158 African Americans, the majority of whom were female (75.9%) and were not employed (85.4%). Confirmatory factor analysis was used to validate four factors reflecting the POC sub-domains. Results Support of the factor validity of the POC with internal consistency of standardized alpha for the four factors was found. A logistic regression showed predictive validity in predicting current screening stage for two of the four sub-domains. Conclusion These data support the application of the POC to prediction of CRC screening intention among African Americans.