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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Feasibility Study for Developing a Longitudinal Study of CMV Driver Health


To determine whether it is feasible to conduct a longitudinal study of commercial motor vehicle (CMV) drivers to understand changes in driver health and mortality.


A longitudinal study is a correlational research study that involves repeated observations of the same variables over long periods of time—often many decades. In medicine, this type of design is used to uncover predictors of certain diseases. FMCSA will model Harvard’s Nurses’ Health Studies. Started in 1976 and expanded in 1989, Harvard’s Nurses’ Health Studies are among the largest and longest running investigations of factors that influence women’s health. The information provided by the 238,000 dedicated nurse-participants has led to many new insights on health and disease. While the prevention of cancer is still a primary focus, the study has also produced landmark data on cardiovascular disease, diabetes and many other conditions. Most importantly, these studies have shown that diet, physical activity and other lifestyle factors can powerfully promote better health.


FMCSA has entered into a cooperative research agreement with the National Institute of Occupational Safety and Health (NIOSH) to determine whether a longitudinal study of CMV drivers is feasible. NIOSH is evaluating related research literature, potential study models, and possible data sources. If determined feasible, FMCSA will proceed with the development of a longitudinal study of CMV driver health and wellness.


Final report.



August 2016: Inter-agency agreement awarded
March 2017: Meeting between FMCSA and NIOSH
June 2017: Progress update meeting between FMCSA and NIOSH
September 2017: Sources of data for priority health outcomes of interest identified
May 2018: Feasibility and potential study designs developed
July 2018: Final report on activities/recommendations for a longitudinal study of CMV drivers


FY16 Funding: $250,000

Current Status:

Project completed.

Project Manager:

For more information, contact Theresa Hallquist of the Research Division at


NIOSH and the Centers for Disease Control and Prevention