JMIR Publications

ABSTRACT

Background:

There remains a need to engage at-risk primary care populations in cancer prevention behaviors, yet primary care physicians often lack the time or resources to discuss these behaviors with their patients.

Objective:

The objective of the study was to evaluate the content, usability, and acceptability of a mobile application that leverages insights from goal-setting and social networks literature to facilitate cancer prevention goal setting, tracking, and sharing between Non-Hispanic Black primary care patients and their social ties.

Methods:

We recruited participants from two primary care clinics in Philadelphia using non-probabilistic purposive sampling. We conducted semi-structured interviews with 5 to 7 participants over three weeks to solicit feedback on paper mock-ups of the application, iteratively adapting these mock-ups after each set of interviews. Thereafter, and informed by initial feedback, we created an electronic beta-version of the application and sought acceptability and usability feedback from a different set of participants. Then we conducted content analysis of all user responses to search for unifying themes on acceptability and usability of both the initial mock-ups and beta-version of the application. We further assessed application usability using questions derived from the System Usability Scale (SUS).

Results:

Thirty-three Non-Hispanic Black primary care patients participated in the study. The mean age was 49 (SD ± 13) and 79% identified as female. Semi-structured interviews revealed three primary generalizable insights from our target population: 1) the framing of each goal and its relevance to cancer impacted the likelihood the goal would be chosen; 2) participants thought that sharing health goals with others facilitates health behaviors; and 3) most participants found it motivating to see other users’ goal progress, while still collaborating with these users on their health goals. An overarching insight that permeated across each theme was the participants’ desire to customize and personalize the app. Usability testing revealed that 100% of participants found the application easy to use and 76% of participants reported they would like to use this application frequently.

Conclusions:

Cancer prevention in the modern era must include options that are accessible to all, but this does not mean that all options must be universal. This study’s iterative process led to the development of a cancer prevention mobile application that Non-Hispanic Black primary care patients deemed usable and acceptable and yielded a number of noteworthy insights about what intended end-users value in setting and accomplishing health goals.