Validation of a susceptibility, benefits, and barrier scale for mammography screening among Peruvian women: a cross-sectional study

BMC Women's Health

Research Article

Mariano Kanamori¹  Kelly I Kamimura-Nishimura²  Moises A Huaman³  Alejandro Siu⁴  Andres G Lescano⁵ 

[1] Department of Epidemiology and Biostatistics, University of Maryland College Park, Maryland, USA;Department of Pediatrics, Bronx-Lebanon Hospital, New York, USA;Universidad Peruana Cayetano Heredia, Lima, Peru;Universidad Peruana Cayetano Heredia, Lima, Peru;Department of Obstetrics and Gynecology, Hospital Nacional Arzobispo Loayza, Lima, Peru;Universidad Peruana Cayetano Heredia, Lima, Peru;Department of Parasitology and Public Health Training Program, US Naval Medical Research Unit Six, Lima, Peru;

关键词: Breast Cancer;    Exploratory Factor Analysis;    Breast Cancer Screening;    Mammography Screening;    Hispanic Woman;   

DOI  :  10.1186/1472-6874-11-54

 received in 2011-04-27, accepted in 2011-12-07,  发布年份 2011

来源: Springer

【 摘 要 】

BackgroundPerceived beliefs about breast cancer and breast cancer screening are important predictors for mammography utilization. This study adapted and validated the Champion's scale in Peru. This scale measures perceived susceptibility for breast cancer and perceived benefits and barriers for mammography.MethodsA cross-sectional study was conducted among women ages 40 to 65 attending outpatient gynecology services in a public hospital in Peru. A group of experts developed and pre-tested a Spanish version of the Champion's scale to assess its comprehensibility (N = 20). Factor analysis, internal consistency, and test-retest reliability analyses were performed (N = 285). Concurrent validity compared scores from participants who had a mammogram and those who did not have it in the previous 15 months. T-test and multiple regression analysis adjusting for socio-demographic factors, mammography knowledge and other preventive behaviors were performed.ResultsThe construct validity and reliability were optimal. Cronbach-Alpha coefficients were 0.75 (susceptibility), 0.72 (benefits) and 0.86 (barriers). Concurrent validity analysis showed an association between barriers and mammography screening use in bivariate (22.3 ± 6.7 vs. 30.2 ± 7.6; p < 0.001) and multiple regression analysis (OR = 0.28, 95% CI = 0.18-0.43). Ages 50-60 years (OR = 2.35, 95% CI = 1.19-4.65), history of prior Papanicolaou test (OR = 3.69, 95% CI = 1.84-7.40), and knowledge about breast cancer and mammography (OR = 3.69, 95% CI = 1.84-7.40) were also independently associated with mammography screening use.ConclusionConcurrent validity analysis showed that the Champion's scale has important limitations for assessing perceived susceptibility for breast cancer and perceived benefits for mammography among Peruvian women. There is still a need for developing valid and reliable instruments for measuring perceived beliefs about breast cancer and mammography screening among Peruvian women.

【 授权许可】

CC BY   
© Huaman et al; licensee BioMed Central Ltd. 2011