Comparison of Two Screening Strategies for Gestational Diabetes (GDM2) Trial: Design and rationale

Perspective on insulin use in gestational diabetes: A phenomenological study

Gestational diabetes mellitus (GDM) is characterized by carbohydrate metabolism intolerance during pregnancy in individuals with normal blood glucose levels before pregnancy. The first-line treatment for GDM is nutrition and exercise, and insulin therapy is initiated when these are insufficient. Pregnant women who are started on insulin often think that they use drugs that may be harmful to the baby. Therefore, this study aimed to examine the perspectives of women diagnosed with gestational diabetes on insulin use using a phenomenological approach. Qualitative research was conducted using phenomenological patterns. The interviews were recorded on an online/face-to-face voice recorder in a semi-structured form, and thematic content analysis was performed using MAXQDA22. Based on the inclusion criteria of the 2 hospitals specific to the study, 15 patients were included, and the study reached saturation. Three main themes and 2 subthemes were obtained from the coding. The main themes were derived from, "fear," "baby protector," and "last remedy" coding. Pregnant women diagnosed with GDM can define gestational diabetes because of the training provided. Because the pregnancy period is sensitive, pregnant women delay control and insulin application for the health of their babies. Moreover, they sometimes experience pain during the injection, and believe that it may harm their babies.

Comparative Assessment of Exclusive Breastfeeding Rates From 24-Hour Recall and Since Birth Methods in Southwestern Pennsylvania Using Ecological Momentary Assessment

BACKGROUND

Accurate measurement of exclusive breastfeeding is important in maternal and child health research. Exclusive breastfeeding is often measured using the 24-hour recall or the since birth method for the first 6 months. These methods can produce different estimates, introducing problems in interpreting breastfeeding behavior and making accurate comparisons across settings or countries.

RESEARCH AIM

Our aim was to compare the exclusive breastfeeding rates between the 24-hour recall and since birth methods among a diverse cohort of birthing people using the ecological momentary assessments method. In addition, we compared the exclusive breastfeeding rates between the two methods across race and other maternal characteristics.

METHODS

This study is a secondary analysis using data from the Postpartum Mothers Mobile Study (PMOMS), a prospective longitudinal study which recruited participants during pregnancy and followed them for 12 months after delivery. Participants completed surveys in real-time via ecological momentary assessment. Individual exclusive breastfeeding rates from months 1-6 were computed using 24-hour recall and since birth methods for 284 participants. We calculated the percentage point difference between the two methods across child age and maternal characteristics. We used a two-sample test of proportions to determine if the differences observed in the proportions were significant.

RESULTS

Exclusive breastfeeding rates from the 24-hour recall were higher than the since birth rates across all ages and maternal characteristics. The difference between the two methods at 3 months was 25.7 percentage points and at 6 months was a 17.2 percentage points. Irrespective of the method used to measure exclusive breastfeeding, White participants had higher exclusive breastfeeding rates than Black participants.

CONCLUSION

The 24-hour recall and the since birth methods of assessing exclusive breastfeeding provided substantially different estimates. These findings highlight the importance of specificity in measuring and reporting exclusive breastfeeding.

Examining demographic and psychosocial factors related to self-weighing behavior during pregnancy and postpartum periods

Black childbearing individuals in the US experience a higher risk of postpartum weight retention (PPWR) compared to their White counterparts. Given that PPWR is related to adverse health outcomes, it is important to investigate predictors of weight-related health behaviors, such as self-weighing (i.e., using a scale at home). Regular self-weighing is an evidence-based weight management strategy, but there is minimal insight into sociodemographic factors related to frequency. The Postpartum Mothers Mobile Study (PMOMS) facilitated longitudinal ambulatory weight assessments to investigate racial inequities in PPWR. Our objective for the present study was to describe self-weighing behavior during and after pregnancy in the PMOMS cohort, as well as related demographic and psychosocial factors. Applying tree modeling and multiple regression, we examined self-weighing during and after pregnancy. Participants (N = 236) were 30.2 years old on average (SD = 4.7), with the majority being college-educated (53.8%, n = 127), earning at least $30,000 annually (61.4%, n = 145), and self-identifying as non-Hispanic White (NHW; 68.2%, n = 161). Adherence to regular self-weighing (at least once weekly) was highest among participants during pregnancy, with a considerable decline after giving birth. Low-income Black participants (earning < $30,000) were significantly less likely to reach a completion rate of ≥ 80% during pregnancy (AOR = 0.10) or the postpartum period (AOR = 0.16), compared to NHW participants earning at least $30,000 annually. Increases in perceived stress were associated with decreased odds of sustained self-weighing after delivery (AOR = 0.79). Future research should consider behavioral differences across demographic intersections, such as race and socioeconomic status, and the impact on efficacy of self-weighing.

Mid-pregnancy sleep disturbances are not associated with mid-pregnancy maternal glycemia

Background

In pregnancy, epidemiological data have consistently shown strong associations between sleep quality and duration and maternal glycemia. However, other sleep disturbances such as difficulty falling asleep and staying asleep are common in pregnancy. They may contribute to impaired maternal glycemia through sympathetic nervous system activity, systemic inflammation, and hormonal pathways. However, there is little research examining associations between these specific sleep disturbances and maternal glycemia.

Objective

This study aimed to investigate the associations of sleep disturbances during mid-pregnancy and mid-pregnancy maternal glycemia and gestational diabetes subtypes.

Study Design

This is a secondary data analysis of the Comparison of Two Screening Strategies for Gestational Diabetes trial. Participants (n = 828) self-reported the frequency of sleep disturbances (i.e., trouble falling asleep, trouble staying asleep, waking several times per night, and waking feeling tired or worn out) in mid-pregnancy. Gestational diabetes was diagnosed using either the International Associations of Diabetes and Pregnancy Study Groups or Carpenter-Coustan approach. We defined gestational diabetes subtypes based on the degree of insulin resistance and beta-cell dysfunction. We used multinomial logistic regression to examine associations of sleep disturbances with gestational diabetes status (i.e., normal, mild glycemic dysfunction, and gestational diabetes) and gestational diabetes subtypes (i.e., neither insulin resistance or beta-cell dysfunction, insulin resistance only, beta-cell dysfunction only, and insulin resistance and beta-cell dysfunction).

Results

A total of 665 participants (80%) had normal glycemia, 81 (10%) mild hyperglycemia, and 80 (10%) had gestational diabetes. Among participants with gestational diabetes, 62 (78%) had both insulin resistance and beta-cell dysfunction, 15 (19 %) had insulin resistance only, and 3 had beta-cell dysfunction only or neither insulin resistance nor beta-cell dysfunction. Sleep disturbance frequency was not associated with maternal glycemia or gestational diabetes subtypes.

Conclusions

Sleep disturbances in mid-pregnancy were not associated with maternal glycemia during mid-pregnancy. Future research should collect data on sleep disturbances at multiple time points in pregnancy and in combination with other sleep disturbances to determine whether sleep plays any role in maternal glycemic control.

Stress, social support, and racial differences: Dominant drivers of exclusive breastfeeding

Exclusive breastfeeding is recommended for 6 months; however, many childbearing people wean their infants before 6 months. Psychosocial factors such as stress, social support and race are significant determinants of breastfeeding; however, few studies have longitudinally explored the effect of perceived stress and various forms of social support on exclusive breastfeeding. We used quantitative methodologies to examine exclusive breastfeeding, perceived stress and social support among 251 participants from the Postpartum Mothers Mobile Study. Participants between 18 and 44 years were recruited during pregnancy (irrespective of parity) and completed surveys in real-time via Ecological Momentary Assessment up to 12 months postpartum from December 2017 to August 2021. We measured perceived stress with the adapted Perceived Stress Scale and perceived social support with the Multi-dimensional Social Support Scale. Received social support was measured using a single question on breastfeeding support. We conducted a mixed-effects logistic regression to determine the effect of stress, race and social support on exclusive breastfeeding over 6 months. We examined the moderation effect of perceived social support and breastfeeding support in the relationship between perceived stress and exclusive breastfeeding. Black, compared with White, participants were less likely to breastfeed exclusively for 6 months. Participants who reported higher perceived stress were less likely to breastfeed exclusively for 6 months. Perceived social support moderated the relationship between perceived stress and exclusive breastfeeding (odds ratio: 0.01, 95% confidence interval: 0.001-0.072). However, breastfeeding support directly increased the likelihood of exclusive breastfeeding over 6 months. Perceived stress is negatively associated with exclusive breastfeeding. Birthing people who intend to breastfeed may benefit from perinatal support programs that include components to buffer stress.

Maternal Characteristics and Complications in Pregnancies Complicated with Diabetes

Abstract Aim: Pregnancies complicated with diabetes are risky pregnancies with different maternal characteristics and increased maternal complications compared to the normal pregnant group. In this study, it is aimed to determine maternal characteristics and maternal complications in pregnant women with different glucose intolerance or blood glucose levels, and to compare them with the information in the literature and to investigate the effectiveness of our follow-up and treatment protocols. Material and Method: This study is carried out with 223 patients at Ümraniye Training and Research Hospital between May 2009 and March 2010. Group 1 in the study, normal glycemic group; Group 2, group with 1 value higher in 100 g oral glucose tolerance test (OGTT); Group 3, gestational diabetes mellitus (GDM), is the blood sugar regulated group; Group 4, the uncontrolled group diagnosed with GDM and whose blood sugar is not regulated; Group 5 consisted of patients with pregestational diabetes mellitus, with or without regulated blood sugar. Results: Considering the maternal characteristics, it is seen that the age, gravida, parity, body mass index (BMI) of Group 3, Group 4 and Group 5 patients are significantly higher than the patients in Group 1 and Group 2. The rates of preeclampsia, macrosomic baby and preterm birth are significantly higher in groups 4 and 5. In terms of delivery types, normal birth rate is high in Group 1, while cesarean section rates are high in Groups 4 and 5. According to the groups, the cases with a 1st minute apgar score less than 7 are significantly higher in Group 4 and Group 5. Conclusion: It is revealed that different glucose intolerances cause some problems in pregnancy, increase complications, and uncontrolled blood glucose levels increase these problems and complications. In pregestational and gestational periods; In such cases, it should be aimed and ensured that these problems and complications are reduced to the lowest possible level with appropriate diagnosis and treatment approaches.

Stress during pregnancy: An ecological momentary assessment of stressors among Black and White women with implications for maternal health

BACKGROUND

Stress can lead to adverse physiological and psychological outcomes. Therefore, understanding stress during pregnancy provides insight into racial disparities in maternal health, particularly Black maternal health.

OBJECTIVES

This study aimed to describe (1) daily exposure to self-reported stress levels during pregnancy, and (2) sources of stress among participants that identified as Black or White using data collected via ecological momentary assessment.

METHODS

We leveraged survey data from the Postpartum Mothers Mobile Study, a prospective longitudinal study using ecological momentary assessment data collection methods to describe patterns of stress during pregnancy. This article is descriptive and documents patterns of self-reported stress levels and sources of stress. Frequencies and percentages of stress responses were computed to describe these patterns.

RESULTS

The sample (n = 296) was 27% Black (n = 78) and 63% White (n = 184). Results were based on at least one measurement of that stress level during pregnancy. A similar number of Black and White participants reported no stress during pregnancy. White (85%-95%) and Black (60%-70%) participants reported low to moderate levels of stress. Black participants (38%) and White participants (35%) reported experiencing high stress. Black and White participants reported similar sources of stress: stress from a partner, too many things to do, a baby or other children, and financial concerns. White participants reported work as a top stressor, and Black participants reported financial issues as a top source of stress.

CONCLUSION

This study provides insight into daily exposure to stress that has implications for maternal health. We described patterns of self-reported stress and sources of stress among Black and White participants. The daily exposures to stress reported by this sample exist within a context of root causes of structural inequities in education, health care, income, wealth, and housing that must be addressed to achieve maternal health equity.

Screening auf Gestationsdiabetes mellitus (GDM) – Welchen Weg weisen die neuen Studien? Übersicht und Kommentar

Das Screening auf Gestationsdiabetes mellitus (GDM) wird international nicht einheitlich durchgeführt. In Deutschland wird allen Schwangeren ein zweizeitiges Screening angeboten, zunächst ein 50-g Vortest (nicht nüchtern), im positiven Fall gefolgt von einem 75-g oralen Gluksetoleranztest (oGTT) über 2 h (nüchtern). Im Jahr 2021 sind zwei randomisierte Screeningstudien publiziert worden, in denen einzeitiges Screenen ohne Vortest mit dem zweizeitigen Screenen verglichen wurde. Einzeitiges Screenen erhöht die GDM-Prävalenz um das 2,3-fache ohne Vorteile für klinisch relevante Endpunkte von Müttern und Neugeborenen und um den Preis unnötiger Pharmakotherapie sowie Belastung der Ressourcen bei den Betreuern. Beim zweizeitigen Screening benötigen nur 20% der Frauen einen oGTT. Darüber hinaus wird die zweizeitige Strategie von den Frauen präferiert.

Trends in Stress Throughout Pregnancy and Postpartum Period During the COVID-19 Pandemic: Longitudinal Study Using Ecological Momentary Assessment and Data From the Postpartum Mothers Mobile Study

BACKGROUND

Stress is associated with adverse birth and postpartum health outcomes. Few studies have longitudinally explored racial differences in maternal stress in a birthing population in the United States during the ongoing COVID-19 pandemic.

OBJECTIVE

This study aimed to do the following: (1) assess changes in reported stress before, during, and after initial emergency declarations (eg, stay-at-home orders) were in place due to the COVID-19 pandemic, and (2) assess Black-White differences in reported stress in a pregnant and postpartum population from Southwestern Pennsylvania.

METHODS

We leveraged data from the ongoing Postpartum Mothers Mobile Study (PMOMS), which surveys participants in real time throughout the pregnancy and postpartum periods via ecological momentary assessment (EMA) and smartphone technology. We analyzed data from a subset of PMOMS participants (n=85) who were either Black or White, and who submitted EMA responses regarding stress between November 1, 2019, and August 31, 2020, the time frame of this study. We divided data into four phases based on significant events during the COVID-19 pandemic: "pre" phase (baseline), "early" phase (first case of COVID-19 reported in United States), "during" phase (stay-at-home orders), and "post" phase (stay-at-home orders eased). We assessed mean stress levels at each phase using linear mixed-effects models and post hoc contrasts based on the models.

RESULTS

Overall mean stress (0=not at all to 4=a lot) during the pre phase was 0.8 for Black and White participants (range for Black participants: 0-3.9; range for White participants: 0-2.8). There was an increase of 0.3 points (t5649=5.2, P<.001) in the during phase as compared with the pre phase, and an increase of 0.2 points (t5649=3.1, P=.002) in the post phase compared with the pre phase (n=85). No difference was found between Black and White participants in the change in mean stress from the pre phase to the during phase (overall change predicted for the regression coefficient=-0.02, P=.87). There was a significant difference between Black and White participants in the change in mean stress from the during phase to the post phase (overall change predicted for the regression coefficient=0.4, P<.001).

CONCLUSIONS

There was an overall increase in mean stress levels in this subset of pregnant and postpartum participants during the same time as the emergency declarations/stay-at-home orders in the United States. Compared to baseline, mean stress levels remained elevated when stay-at-home orders eased. We found no significant difference in the mean stress levels by race. Given that stress is associated with adverse birth outcomes and postpartum health, stress induced by the ongoing COVID-19 pandemic may have adverse implications for birthing populations in the United States.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

RR2-10.2196/13569.

An Update on Screening Strategies for Gestational Diabetes Mellitus: A Narrative Review

Gestational diabetes mellitus (GDM) is a frequent medical complication during pregnancy. Screening and diagnostic practices for GDM are inconsistent across the world. This narrative review includes data from 87 observational studies and randomized controlled trials (RCTs), and aims to give an overview of the current evidence on screening strategies and diagnostic criteria for GDM. Screening in early pregnancy remains controversial and studies show conflicting results on the benefit of screening and treatment of GDM in early pregnancy. Implementing the one-step "International Association of Diabetes and Pregnancy Study Groups" (IADPSG) screening strategy at 24-28 weeks often leads to a substantial increase in the prevalence of GDM, without conclusive evidence regarding the benefits on pregnancy outcomes compared to a two-step screening strategy with a glucose challenge test (GCT). In addition, RCTs are needed to investigate the impact of treatment of GDM diagnosed with IADPSG criteria on long-term maternal and childhood outcomes. Selective screening using a risk-factor-based approach could be helpful in simplifying the screening algorithm but carries the risk of missing significant proportions of GDM cases. A two-step screening method with a 50g GCT and subsequently a 75g oral glucose tolerance test (OGTT) with IADPSG could be an alternative to reduce the need for an OGTT. However, to have an acceptable sensitivity to screen for GDM with the IADPSG criteria, the threshold of the GCT should be lowered from 7.8 to 7.2 mmol/L. A pragmatic approach to screen for GDM can be implemented during the COVID-19 pandemic, using fasting plasma glucose (FPG), HbA1c or even random plasma glucose (RPG) to reduce the number of OGTTs needed. However, usual guidelines and care should be resumed as soon as the COVID pandemic is controlled.

Perinatal Outcomes of Two Screening Strategies for Gestational Diabetes Mellitus: A Randomized Controlled Trial

OBJECTIVE

To evaluate differences in short-term perinatal outcomes between the two prominent screening strategies for gestational diabetes mellitus, the International Association of Diabetes and Pregnancy Study Groups (IADPSG) and Carpenter-Coustan.

METHODS

In this single-site, blinded, randomized, comparative effectiveness trial, participants received a nonfasting 50-g oral glucose tolerance test and, if less than 200 mg/dL (less than 11.1 mmol/L), were randomized to further screening with either IADPSG or Carpenter-Coustan criteria. Gestational diabetes treatment occurred per routine clinical care. The primary outcome was incidence of large-for-gestational-age (LGA) neonates. Prespecified secondary outcomes included small-for-gestational-age (SGA) neonates, cesarean birth, and neonatal and maternal composites of adverse perinatal outcomes. Assuming a 15% incidence of LGA neonates in the Carpenter-Coustan group, 782 participants provided more than 80% power to detect a 7% absolute risk reduction with the use of IADPSG; planned recruitment was 920 for anticipated attrition.

RESULTS

From June 2015 to February 2019, 1,016 participants were enrolled and 921 were randomized to IADPSG (n=461) or Carpenter-Coustan (n=460) groups. Gestational diabetes incidence (14.4% vs 4.5%, P<.001) and diabetes medication use (9.3% vs 2.4%; P<.001) were more common in the IADPSG group; there were no differences in LGA neonates, either overall (risk reduction 0.90, 97.5% CI 0.53-1.52) or among women without gestational diabetes (risk reduction 0.85, 97.5% CI 0.49-1.48). Those screened with IADPSG had higher rates of neonatal morbidity but fewer study-related adverse events. Rates of SGA neonates, cesarean birth, and maternal morbidity composite did not differ significantly between study groups.

CONCLUSIONS

The IADPSG screening criteria resulted in more women diagnosed and treated for gestational diabetes than Carpenter-Coustan without reducing the incidence of LGA birth weight or maternal or neonatal morbidity.

CLINICAL TRIAL REGISTRATION

ClinicalTrials.gov, NCT02309138.

Resolving the Gestational Diabetes Diagnosis Conundrum: The Need for a Randomized Controlled Trial of Treatment

The diagnosis of and criteria for gestational diabetes mellitus (GDM) continue to divide the scientific and medical community, both between and within countries. Many argue for universal adoption of the International Association of the Diabetes and Pregnancy Study Groups (IADPSG) criteria and feel that further clinical trials are unjustified and even unethical. However, there are concerns about the large increase in number of women who would be diagnosed with GDM using these criteria and the subsequent impact on health care resources and the individual. This Perspective reviews the origins of the IADPSG consensus and points out some of its less well-known limitations, particularly with respect to identifying women at risk for an adverse pregnancy outcome. It also questions the clinical and cost-effectiveness data often cited to support the IADPSG glycemic thresholds. We present the argument that adoption of diagnostic criteria defining GDM should be based on response to treatment at different diagnostic thresholds of maternal glycemia. This will likely require an international multicenter trial of treatment.

Ecological momentary assessment of stress, racism and other forms of discrimination during pregnancy using smartphone technology

BACKGROUND

In the United States, there are considerable racial inequities in adverse perinatal outcomes. Exposure to racism, sexism, and other forms of oppression may help explain these inequities.

OBJECTIVES

To describe the application of real-time data collection using ecological momentary assessment (EMA) and smartphone technology to assess exposure to stress, racism, sexism, microaggressions, and other forms of oppression.

METHODS

The Postpartum Mothers Mobile Study (PMOMS) is an ongoing longitudinal cohort study that began recruitment in December 2017. Participants delivering at a hospital in Pittsburgh, PA are recruited by 29 weeks' gestation. Using smartphones and smart scales, participants complete daily surveys related to psychosocial, behavioural, and contextual factors and weigh themselves weekly for approximately 15 months. We provide a preliminary descriptive analysis of EMA self-reported measures of stress, racism, sexism, and microaggressions; and non-EMA measures of stress and major discrimination.

RESULTS

The sample (n = 230) is 63.5% White, 24.8% Black/African American, and 7% Hispanic origin. The most commonly reported item from the Major Discrimination Scale is being unfairly fired (18.1% of the sample). Of those, 31.7% and 17.1% attribute unfair firing to their gender and race, respectively. From the random EMA measures, on average, participants report experiences of racism and sexism at least once daily, in an average 12-hour day over the 4-week period. Black participants indicate about two experiences per day of racism, and White participants indicate more than 1 per day of sexism. Mean stress levels from the EMA measures were similar to the stress measures collected at baseline.

CONCLUSIONS

The methods applied in PMOMS provide real-time data regarding how participants' daily experiences of stress and discrimination influence their lives. Future work will include understanding if and how these EMA measures may relate to already established measures of racism, sexism, and stress; and ultimately understanding associations with perinatal inequities.

Diagnostic Strategies for Gestational Diabetes Mellitus: Review of Current Evidence

PURPOSE OF REVIEW

Currently, the diagnosis of gestational diabetes mellitus (GDM) lacks uniformity. Several controversies are still under debate, especially on the method of screening and diagnosis. This review focuses on recent literature and provides current evidence for the screening and diagnosis of GDM.

RECENT FINDINGS

Selective screening would miss a significant number of women with GDM. In contrast, universal screening has been shown to be cost-effective, compared with selective screening, and is recommended by many medical societies. For the diagnostic methods for GDM, most observational cohort studies reported that the one-step method is associated with improved pregnancy outcomes and is cost-saving or cost-effective, compared with the two-step method, although these findings should be confirmed in the upcoming randomized controlled trials which compare the performance of one-step and two-step methods. On the other hand, the methods of early screening or diagnosis of GDM are varied, and current evidence does not justify their use during early pregnancy. In conclusion, current evidence favors universal screening for GDM using the one-step method. Early screening for GDM is not favorably supported by the literature.

The prevalence and risk factors of gestational diabetes mellitus in Turkey: a systematic review and meta-analysis

OBJECTIVE

To identify the prevalence and related risk factors of gestational diabetes mellitus (GDM) based on studies on the condition conducted in Turkey.

METHODS

The study is a systematic review and meta-analysis and was conducted over the period November-December 2017 by performing a search of the Turkish and English literature. The international databases were accessed using the keywords "gestational diabetes" and "Turkey" and the national databases were scanned using the word groups, "gestational diabetes", "diabetes in pregnancy", "pregnancy and diabetes," and "pregnancy diabetes". Forty-one complete articles on research carried out in Turkey over the period 2004-2016 and published in 2006-2018 on the prevalence of GDM and/or a reported risk factor were included in the study. Combined percentage calculations were employed to determine GDM prevalence.

RESULTS

It was found in this systematic review and meta-analysis of the studies examined that out of the total of 50,767 pregnant women included in the studies, 3891 had GDM. Based on these data, combined GDM prevalence was calculated as 7.7% (range: 1.9-27.9%). It was observed that the highest combined GDM prevalence was 17.6% in the black Sea Region and the lowest was 5.1% in the Central Anatolian Region. Fourteen risk factors had been reported as statistically significant in the studies included in the systematic review. The most commonly reported of these was advanced maternal age, being overweight prior to pregnancy, gaining weight in pregnancy, diabetes in the family, a history of GDM or giving birth to a large baby.

CONCLUSIONS

It was observed in this meta-analysis that the prevalence of GDM in Turkey is notably high and risk factors are similar to what has been reported in current international literature. The continuation of routine screening tests to detect GDM may contribute to controlling the condition while ensuring that risk groups take special preventive measures and mother-child health is protected.

IMPLICATIONS FOR PRACTICE

Results of this study might be used in the organization of prenatal care, especially high-risk pregnant women for GDM. Nursing researchers and health care managers should consider this situation in the implementing of prenatal care serving.

Understanding Pregnancy and Postpartum Health Using Ecological Momentary Assessment and Mobile Technology: Protocol for the Postpartum Mothers Mobile Study

Background

There are significant racial disparities in pregnancy and postpartum health outcomes, including postpartum weight retention and cardiometabolic risk. These racial disparities are a result of a complex interplay between contextual, environmental, behavioral, and psychosocial factors.

Objective

This protocol provides a description of the development and infrastructure for the Postpartum Mothers Mobile Study (PMOMS), designed to better capture women’s daily experiences and exposures from late pregnancy through 1 year postpartum. The primary aims of PMOMS are to understand the contextual, psychosocial, and behavioral factors contributing to racial disparities in postpartum weight and cardiometabolic health, with a focus on the daily experiences of stress and racism, as well as contextual forms of stress (eg, neighborhood stress and structural racism).

Methods

PMOMS is a longitudinal observation study that is ancillary to an existing randomized control trial, GDM² (Comparison of Two Screening Strategies for Gestational Diabetes). PMOMS uses an efficient and cost-effective approach for recruitment by leveraging the infrastructure of GDM², facilitating enrollment of participants while consolidating staff support from both studies. The primary data collection method is ecological momentary assessment (EMA) and through smart technology (ie, smartphones and scales). The development of the study includes: (1) the pilot phase and development of the smartphone app; (2) feedback and further development of the app including selection of key measures; and (3) implementation, recruitment, and retention.

Results

PMOMS aims to recruit 350 participants during pregnancy, to be followed through the first year after delivery. Recruitment and data collection started in December 2017 and are expected to continue through September 2020. Initial results are expected in December 2020. As of early May 2019, PMOMS recruited a total of 305 participants. Key strengths and features of PMOMS have included data collection via smartphone technology to reduce the burden of multiple on-site visits, low attrition rate because of participation in an ongoing trial in which women are already motivated and enrolled, high EMA survey completion and the use of EMA as a unique data collection method to understand daily experiences, and shorter than expected timeframe for enrollment because of the infrastructure of the GDM² trial.

Conclusions

This protocol outlines the development of the PMOMS, one of the first published studies to use an ongoing EMA and mobile technology protocol during pregnancy and throughout 1 year postpartum to understand the health of childbearing populations and enduring racial disparities in postpartum weight and cardiometabolic health. Our findings will contribute to the improvement of data collection methods, particularly the role of EMA in capturing multiple exposures and knowledge in real time. Furthermore, the results of the study will inform future studies investigating weight and cardiometabolic health during pregnancy and the postpartum period, including how social determinants produce population disparities in these outcomes.

International Registered Report Identifier (IRRID)

DERR1-10.2196/13569