Active EMNet Projects

This page lists all active EMNet projects as of February 2020. To view the Studies timeline, please click here. Additionally, publications can be found here.

MARC-35 (also known as the WIND Study) is a multicenter, prospective cohort study of severe bronchiolitis and risk of recurrent wheezing.

Click here to learn more about MARC-35.

MARC-41 builds on the success of the MARC-36 and -37 studies by implementing an evidenced-based hospital-initiated care bundle and evaluating its effectiveness at five geographically-diverse US sites. 

Click here to learn more about MARC-41.

MARC-42 is an analysis of large administrative datasets and survey data to investigate chronic obstructive pulmonary disease (COPD) readmission rates and management.

Click here to learn more about MARC-42.

MARC-43 (also known as the CHIME Study) is a multicenter, prospective cohort study of healthy infants’ respiratory microbiome.

Click here to learn more about MARC-43.

The mission of EMNet’s Translation Research Unit is to leverage large clinical, biometrics, and omics data not only to delineate disease pathobiology (e.g., that of bronchiolitis and childhood asthma) but also to transform medical care in the U.S. and around the world.

For more information, click here.

EMNet has teamed up with the R Baby Foundation again to perform its fifth annual national survey to better understand the nature of U.S. emergency departments (EDs). Briefly, we are contacting hospitals to obtain basic information about their EDs.

The results from this national survey will be used to perform health services research on U.S. emergency care and to enhance our existing app, EMNet findERnow (available for free on both iPhone and Android smartphones). If you have questions or would like more information, please email us at

To complete the survey, click here.

To learn more about NEDI-USA 2019, click here.

NEDI-Indian Health Service surveys IHS emergency departments across the United States. The survey will collect information regarding ED characteristics, staffing, electronic resources, consultant availability, adverse social determinants of health, and opioid management.

To learn more about NEDI-IHS 2019, click here.

Under Construction

EMNet’s workforce studies estimate the supply and demand of emergency medicine physicians and advance practice providers.

For more information, click here.

EMNet investigators are investigating the role of telemedicine in emergency care, both regionally and nationally. Recent studies are exploring the role of telemedicine in pediatric emergencies and mental health emergencies; we also are investigating barriers (and solutions) for the use of telemedicine in rural EDs.

For more information, click here.

Current projects focus around understanding neighborhood and spatial risk, evaluating and developing directories of community resources, and identification of social risk and social need.

For more information, click here.

Large administrative dataset analyses contribute to all three research programs at EMNet. To learn more about these diverse analyses, please click here.