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Related Experiment Video

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'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake
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Completion Rates for Ecological Momentary Assessments of Food Intake During Pregnancy and Post Partum: Descriptive

Sarah Annalise Sanders1, Serwaa Omowale2, Andrea Casas1

  • 1Department of Epidemiology, University of Pittsburgh, 130 De Soto Street, Pittsburgh, PA, 15261, United States, 1 412-648-5664.

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Summary

Dietary behavior data collection using ecological momentary assessment (EMA) showed stable engagement in childbearing populations. However, completion rates were higher for participants with socioeconomic advantages, highlighting potential disparities in health research participation.

Keywords:
dietdietarydietary behaviordietary intakeecological momentary assessmentlongitudinal studypost partumpregnancysurvey

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Area of Science:

  • Nutrition Science
  • Public Health Research
  • Maternal Health Studies

Background:

  • Collecting dietary behavior data is vital for childbearing populations.
  • Traditional methods like 24-hour recalls can be burdensome and limit participation.
  • Ecological momentary assessment (EMA) offers reduced bias and greater convenience but needs more study in diverse groups.

Purpose of the Study:

  • To assess participant completion rates of food intake items in EMA surveys.
  • To analyze completion rates across demographic characteristics and combined strata.
  • To evaluate EMA survey engagement during late pregnancy and postpartum.

Main Methods:

  • Utilized secondary EMA data from a longitudinal study.
  • Analyzed average completion rates of dietary behavior survey items.
  • Examined completion rates by demographic variables (age, prepregnancy BMI, race, income, employment) and combined strata.

Main Results:

  • Overall average completion rates were 52.4% during pregnancy and 59.1% postpartum.
  • Higher completion rates were observed in older, White, employed participants with higher income and prepregnancy overweight status.
  • Completion rates varied within racial groups; Black participants using study phones showed higher rates, while White participants showed the opposite.

Conclusions:

  • EMA surveys demonstrated relatively stable engagement over 15 months in a childbearing cohort.
  • Socioeconomic advantages may influence participation and completion rates in health research.
  • Investigate the intersection of race, employment, and other factors to understand participation disparities.