Secondary prevention in coronary artery disease: development and content validity of educational messages for mobile phones.

Objective: To identify information needs of patients with coronary artery disease and develop and validate the content of educational messages for mobile phones for these patients.

Method: The study was carried out in three phases: 1) Identification of information needs in relation to coronary artery disease of patients hospitalized for an acute coronary event; 2) Development of templates containing text and pictures about the disease and treatment; 3) Content validity analysis of template evidence through the assessment of 10 experts. Templates were considered validated when the Content Validity Ratio (CVR) was equal to or greater than 0.80.

Results: A total of 67 patients were included, and all the information that emerged about the disease was classified as important to very important. Thirty templates were developed (heart function, recommendations on nutrition and exercise, treatments and medications, and clinical signs related to the disease and risk factor control), and the CVR obtained was greater than 0.80.

Conclusion: All information needs were categorized by patients as important or very important. The templates were developed and validated considering content and design.