I am conducting research using NHIS data from 1999-2018. I am trying to use the point estimates for family income instead of the ranges, but unless I am missing something, IPUMS only has point estimates for 2008 forward. Yet NCHS has supplemental income files that provide point estimates of family income (with top-coding) for years prior to 2008. Am I correct about this? Is there a reason IPUMS doesn’t use the supplemental income files to provide income point estimates prior to 2008? Thanks!
While we don’t currently offer the supplemental income files for these earlier years, we may in the future. I am in conversation with our IPUMS NHIS team about this and will follow up with you here if I have any more information to share.