RIDAGEYR
Compatible with harmonizationhigh confidence
Demographics
Best age in years of the sample person at time of HH screening. Individuals 85 and over are topcoded at 85 years of age.
- Source releases
- 13
- Available cycles
- 1999-2000 · 2001-2002 · 2003-2004 · 2005-2006 · 2007-2008 · 2009-2010 · 2009-2010 · 2011-2012 · 2013-2014 · 2015-2016 · 2017-2018 · 2017-2020 · 2021-2023
- Dataset
- Demographic Variables & Sample Weights
RIDAGEYR remains age in years at screening, but CDC/NCHS changed the public-use disclosure top-code from 85 years and older through 2005-2006 to 80 years and older beginning in 2007-2008. The construct is continuous, but exact values in the oldest ages are not directly comparable across that disclosure boundary.
Evidence provenance: CDC/NCHS source-confirmed evidence · Praxis deterministic adjudication
Evidence signals: source-stated
Relevant boundaries: 2005-2006 → 2007-2008
Praxis harmonization actions
- For pooled analyses spanning the 2005-2006 to 2007-2008 boundary, harmonize the upper age range to a common 80+ category or restrict continuous-age analyses to participants younger than 80. Do not treat published top-coded values as exact ages.