========================================================================================== Respondent Date of Birth Note to Users: This codebook is designed to match the distribution dataset. Codebook metadata are derived from the data collection instrument. If you have questions concerning codebook layout or content please bring them to the attention of the HRS staff at hrsquestions@umich.edu. Printing recommendation: Set margins (left/right/top/bottom) to .5 inch; print in portrait orientation using a mono-space 10-point font. ========================================================================================== Section A: DATE OF BIRTH (Respondent) ========================================================================================== HHID HOUSEHOLD IDENTIFIER Section: A Level: Respondent Type: Character Width: 6 Decimals: 0 This variable uniquely identifies an original household across waves. ................................................................................. 46766 000001-959738. Household Identification Number ========================================================================================== PN PERSON NUMBER Section: A Level: Respondent Type: Character Width: 3 Decimals: 0 Each respondent has a Person Number. The identifier is unique within an original household across waves. ................................................................................. 27403 010. Person Number 1610 011. Person Number 87 012. Person Number 3 013. Person Number 14053 020. Person Number 450 021. Person Number 35 022. Person Number 1 023. Person Number 1201 030. Person Number 86 031. Person Number 9 032. Person Number 2 033. Person Number 1699 040. Person Number 110 041. Person Number 14 042. Person Number 3 043. Person Number ========================================================================================== STUDY STUDY MEMBERSHIP Section: A Level: Respondent Type: Numeric Width: 8 Decimals: 0 Study membership is based on the entry cohort of the individual. This will differ from the birth cohort for age-ineligible spouses or partners. ................................................................................. 13976 1. HRS 8432 11. AHEAD, including the AHEAD-AHEAD overlap case 110 12. HRS/AHEAD Overlap case, AHEAD, given to AHEAD after HRS Wave 1 [1992/1993], appeard in AHEAD 24 13. HRS/AHEAD Overlap case, given to AHEAD after HRS Wave 1 [1992/1993], but never appeared in AHEAD 2475 21. CODA (Children of the Depression Age) 3045 31. WB (War Babies) 5522 41. EBB (Early Baby Boomers) 6051 51. MBB (Mid Baby Boomers) 5417 61. LBB (Late Baby Boomers) 1714 71. EGENX (Early Generation X) 99. Not yet cohort eligible ========================================================================================== FIRSTIW FIRST INTERVIEW: STUDY YEAR Section: A Level: Respondent Type: Numeric Width: 8 Decimals: 0 Wave designation: This variable includes both exit proxies and core interviews. (Note: This may not match year of interview in tracking file.) ................................................................................. 12652 1992. Wave of First Interview 8116 1993. Wave of First Interview 104 1994. Wave of First Interview 107 1995. Wave of First Interview 204 1996. Wave of First Interview 5103 1998. Wave of First Interview 270 2000. Wave of First Interview 232 2002. Wave of First Interview 3477 2004. Wave of First Interview 208 2006. Wave of First Interview 143 2008. Wave of First Interview 6442 2010. Wave of First Interview 333 2012. Wave of First Interview 178 2014. Wave of First Interview 4559 2016. Wave of First Interview 181 2018. Wave of First Interview 172 2020. Wave of First Interview 2760 2022. Wave of First Interview 1525 9996. Not yet given an interview ========================================================================================== BIRTHDAY BIRTHDATE: DAY Section: A Level: Respondent Type: Numeric Width: 8 Decimals: 0 Day of birth. ................................................................................. 1868 0. Day of Birth is unknown 44870 1-31. Day of Birth 4 98. DK (Don't Know); NA (Not Ascertained) 24 99. RF (Refused) ========================================================================================== BIRTHMO BIRTHDATE: MONTH Section: A Level: Respondent Type: Numeric Width: 8 Decimals: 0 Month of birth. ................................................................................. 802 0. Month of Birth is unknown 3823 1. January 3510 2. February 3927 3. March 3645 4. April 3740 5. May 3906 6. June 4009 7. July 4082 8. August 3922 9. September 3960 10. October 3631 11. November 3809 12. December ========================================================================================== BIRTHYR BIRTHDATE: YEAR Section: A Level: Respondent Type: Numeric Width: 8 Decimals: 0 Year of birth. ................................................................................. 707 0. Year of Birth is unknown 46059 1890-2001. Year of Birth ========================================================================================== VERSION VERSION NUMBER Section: A Level: Respondent Type: Numeric Width: 8 Decimals: 0 Version number of this data set. ................................................................................. 46766 2022. December 2025 ==========================================================================================