Peruan version of a questionnaire measuring psychological variables related to adherence (PVRA) among breast cancer women

Abstract

Objective: To adapt and to validate a self-administered questionnaire measuring psychological variables related to adherence behaviors (PVAB) among women with breast cancer. Method: A cross-sectional study was performed with 110 women who were being treated at the National Institute of Neoplastic Diseases, in Lima, Peru. For data treatment three consecutives statistics procedures were applied: an exploratory factorial analysis; the Cronbach’s alpha (α) coefficient, as well as the Pearson’s correlation coefficient (r). Results: A three-factor structure was found with values above 1 that, taken as a whole, explain 45,6% of the variance. Also, an overall Chronbach’s α coefficient = 0,70 was obtained. Significant and differential correlations at p < 0.01 y p < 0.05 values were found between behaviors (“Accomplishment Appointments with the Specialist”, “Accomplishment Appointments to Receive Treatment at Health-Care Institution”, “Following a Diet”, “Making Exercises for Rehabilitation”, and “Caring Body Parts from Heat Exposition”) with the three factors of the instrument (“Past Behavioral Competences”, “Motives and Health-Related Competences”, as well as “Disease and Treatment-Related Competences and Social Adjustment”). Conclusion: According to the results obtained, the instrument has optimal reliability, construct validity as well as concurrent validity, which allow us their future use among women with breast cancer from Peru.

Keywords

• Cáncer de mama
• Perú
• confiabilidad
• validez
• conductas de adherencia
• variables psicológicas.