Health eMoms survey data

New data
What data are being released?
These estimates are from the first year of data collection (2018 births) of the first survey (Survey 1.1) of the Health eMoms program. Mothers complete Survey 1.1 between three and six months postpartum and answer questions related to:
  • Breastfeeding.
  • Vaccinations.
  • Maternal mental health.
  • Maternal leave.
  • Finance and resource insecurities.
  • Marijuana and other substance use.
  • And more!
Of the 2,400 mothers who gave birth in 2018 who were invited to join Health eMoms, 1,098 (46%) enrolled and completed Survey 1.1. These estimates are their weighted responses to Survey 1.1.
What is Health eMoms and how do these data fit into the bigger picture?
The Colorado Department of Public Health and Environment’s Health eMoms program is an online, longitudinal data collection system that draws a monthly sample of mothers from live birth certificates and recruits these mothers by mail to join an online survey platform. Enrolled mothers receive six online surveys every six-eight months by email and text message from shortly after they give birth up until their child’s third birthday. The data we collect helps us understand the needs and experiences of Coloradan moms in order to develop and improve programs and policies that address these needs.
These data come from the first of the six Health eMoms surveys. These estimates are cross-sectional (collected at one-point in time), but as we receive additional responses from the same mothers with the remaining five Health eMoms surveys, they can also serve as a basis for looking at individual-level trends in the topics bulleted above.
How is Health eMoms different from the Pregnancy Risk Assessment Monitoring System (PRAMS)?
Health eMoms and PRAMS are both maternal and child health data collection systems operated by CDPHE that use birth certificate records as the sampling frame for their monthly selection of mothers that they invite to participate in the system. Health eMoms and PRAMS work together to make sure that their samples are mutually exclusive. Both systems contact mothers by mail to complete surveys around three-four months postpartum but PRAMS is an extensive mail and telephone survey whereas Health eMoms is a series of brief web surveys. PRAMS collects data at only one point in time, but Health eMoms enrolls mothers in an ongoing survey program that continues up to their child’s third birthday.
Health eMoms asks some of the same questions as PRAMS on Survey 1.1, but the estimates that result may be slightly different due to differences in survey mode and weighting methodologies. Certain question types that are used in PRAMS, such as matrix questions, are not suitable for web surveys and are modified to work for Health eMoms. Web surveys also tend to be less subject to social desirability bias, which can result in higher estimates for behaviors perceived as negative. Difference in weighting methodologies may also result in small differences in point estimates. When comparing estimates across surveys, make sure to also compare confidence intervals to help assess whether there is a true difference.
How are the data weighted?
Health eMoms data are weighted by iterative proportional fitting, or raking, which balances the sample on key demographic variables to ensure that it is representative of the target population—all eligible births in Colorado. The 2018 Birth Cohort Survey 1.1 data were weighted on:
  • Geography.
  • Education.
  • Ethnicity.
  • Marital status.
  • Parity.
  • Medicaid status.
What is a confidence interval?
The confidence interval is the range of values that is likely to contain the true population parameter. When making statistical inferences about a population based on information collected from a probability sample, random error can affect estimates obtained from the sample. The confidence interval reflects the uncertainty around the estimate that results from random error.
How do I request additional aggregate data from Health eMoms?
Health eMoms will eventually be added to the CDPHE electronic data request system, but in the meantime, additional estimates can be requested directly from the Health eMoms Principal Investigator.
Sarah Blackwell
Phone: 303-692-2257