The Mom2B mobile application study is a national ongoing mobile application-based mother cohort, anticipated to recruit 10,000-20,000 Swedish women by 2024. All Swedish-speaking women above 18 years of age and owning a mobile smartphone who are either pregnant or have delivered within three months are eligible for participation. This novel study is a continuation of work within the BASIC study in the field of Peripartum Depression (PPD), and the aim is to use digital phenotyping data from the Mom2B smartphone application to develop models to predict women at high risk for mental and somatic complications. Included self-report instruments are based on results from the BASIC cohort. Further, the application records digital phenotyping data, physical activity measures, and voice recordings, after consent from participants (Figure). Privacy protection was central in the design of the application and data is collected only on i.e. relative geographical movement patterns, and not the exact position of participants, or patterns in posting, liking, etc in social media, but not the content of the posts. The application is a further development of the Beiwe research platform source code from the Harvard School of Public Health (Onnela Lab), adjusted to the Mom2B study questions and adhering to GDPR regulations in Sweden. Data will also be linked to national registers and data on sociodemographic information, sick leave, diagnoses, and medication will be available for a period of 7 years after study inclusion. The Mom2B app was introduced at the end of November 2019 to the App Store and Google Play and the study is currently recruiting participants at a national level (more than 6.000 participants have already been recruited).
The study protocol has been published in 2022 and is available here.
Bilal AM, Fransson E, Bränn E, et. al. Predicting perinatal health outcomes using smartphone-based digital phenotyping and machine learning in a prospective Swedish cohort (Mom2B): study protocol. BMJ Open2022;12:e059033.doi:10.1136/bmjopen-2021-059033