BackgroundEcological momentary assessment (EMA) assesses individuals’ current experiences, behaviors, and moods as they occur in real time and in their natural environment. EMA studies, particularly those of longer duration, are complex and require an infrastructure to support the data flow and monitoring of EMA completion.ObjectiveOur objective is to provide a practical guide to developing and implementing an EMA study, with a focus on the methods and logistics of conducting such a study.MethodsThe EMPOWER study was a 12-month study that used EMA to examine the triggers of lapses and relapse following intentional weight loss. We report on several studies that informed the implementation of the EMPOWER study: (1) a series of pilot studies, (2) the EMPOWER study’s infrastructure, (3) training of study participants in use of smartphones and the EMA protocol and, (4) strategies used to enhance adherence to completing EMA surveys.ResultsThe study enrolled 151 adults and had 87.4% (132/151) retention rate at 12 months. Our learning experiences in the development of the infrastructure to support EMA assessments for the 12-month study spanned several topic areas. Included were the optimal frequency of EMA prompts to maximize data collection without overburdening participants; the timing and scheduling of EMA prompts; technological lessons to support a longitudinal study, such as proper communication between the Android smartphone, the Web server, and the database server; and use of a phone that provided access to the system’s functionality for EMA data collection to avoid loss of data and minimize the impact of loss of network connectivity. These were especially important in a 1-year study with participants who might travel. It also protected the data collection from any server-side failure. Regular monitoring of participants’ response to EMA prompts was critical, so we built in incentives to enhance completion of EMA surveys. During the first 6 months of the 12-month study interval, adherence to completing EMA surveys was high, with 88.3% (66,978/75,888) completion of random assessments and around 90% (23,411/25,929 and 23,343/26,010) completion of time-contingent assessments, despite the duration of EMA data collection and challenges with implementation.ConclusionsThis work informed us of the necessary preliminary steps to plan and prepare a longitudinal study using smartphone technology and the critical elements to ensure participant engagement in the potentially burdensome protocol, which spanned 12 months. While this was a technology-supported and -programmed study, it required close oversight to ensure all elements were functioning correctly, particularly once human participants became involved.

Residential redlining as a form institutional racism and neighborhood characteristic may be important for understanding racial/ethnic disparities in pregnancy and preterm birth.

et al. Perinatal outcomes of two screening strategies for gestational diabetes mellitus: a randomized controlled trial. Obstet Gynecol 2021;138. The authors provided this information as a supplement to their article.

Purpose: The aim of this study was to learn from doulas the components of their services that might best serve low-income, African American (AA) women and to show the significance of doulas in helping these women have healthy, positive, birth experiences. Methods: Ten doulas were recruited from a local community doula program and through word-of-mouth referrals from participants and completed in-depth interviews. Interviews were transcribed verbatim and analyzed using Atlas.ti software to identify emerging themes. Thematic saturation was achieved in interviews. Results: Several themes emerged from the interviews including: (1) The influence of similarities of race, culture, and lived experience on doula care; (2) How doulas often provide birthing persons with support and resources beyond birth; and (3) How doulas recognize the institutional biases that exist in the health care system and try to mediate their effect on birthing persons. Conclusions: These themes highlight how doulas can support birthing persons to mitigate the negative effects of social determinants of health, specifically racism and classism, and highlight potential avenues for doulas to consider when working with birthing persons who have low income and are AA.

The evidence of institutional racism may contribute to our understanding of health disparities. Residential redlining and mortgage discrimination against communities may be a major factor influencing neighborhood structure, composition, development, and wealth attainment. This residential redlining index as a measure for institutional racism can be applied in health research to understand the unique social and neighborhood contexts that contribute to health inequities.