Report for Phase IV of the Medicaid Undercount Project (SNACC). This phase involved re-using the Phase II process, replacing the CPS data with NHIS data. In addition to providing explanations for discrepancies between the national NHIS and MSIS, comparisons to Phase II results allowed the examination of how survey design and implementation affect the quality of the resulting survey data and the estimates derived from it. May 2009.
The State Health Access Data Assistance Center (SHADAC) is a program of the Robert Wood Johnson Foundation and a part of the Health Policy and Management Division of the School of Public Health at the University of Minnesota.