The Beliefs about Medicines Questionnaire (BMQ) and Adherence Starts with Knowledge (ASK-12) questionnaire were originally developed and validated in Western populations to assess beliefs and barriers to medication adherence. The study aim is to validate the BMQ and ASK-12 questionnaire for use in a Singapore population with early stage breast cancer. English-speaking women on adjuvant endocrine therapy (n = 157) were recruited. The BMQ-Specific showed good internal consistency with structural validity. The internal consistency of BMQ-General and ASK-12 Behaviour scale improved with the new factor structure obtained from exploratory factor analysis. Further studies are needed to confirm these factor structures.
Journal article
J health psychol
04/2022
27
1111 - 1124
adjuvant endocrine therapy, breast cancer, medication adherence, validation, Breast Neoplasms, Female, Health Knowledge, Attitudes, Practice, Humans, Medication Adherence, Reproducibility of Results, Surveys and Questionnaires