The Center for Demography of Health and Aging (CDHA) at the University of Wisconsin-Madison was founded in 1999 by the National Institute on Aging (NIA). This award (P30 AG017266) made possible the formal organization of activities that already existed on campus, including data collection as well as substantive and methodological research on aging.
Over the years, CDHA built a dynamic training and research program that rests on a strong interdisciplinary foundation and easily adapts to new discoveries and developments. The Wisconsin Longitudinal Study (WLS) is one of CDHA's major surveys. La Follette School Professor Pam Herd is principal investigator of the WLS.