Codes and Frequencies
For sample persons aged 18 and over who have donated blood since March 1985, BLOODYR85 reports the year of the person's most recent blood donation.
BLOODYR85 should be paired with BLOODMO85 (month last gave blood after March 1985) for a complete month and year time since the person's last blood donation.
This variable is part of the NHIS supplement on AIDS knowledge and attitudes. For related variables, please use the IPUMS NHIS search function and drop-down menus.
- 1993: Half of sample persons age 18+ in Q3 and Q4 (excluded from Y2K supplement) who have donated blood since March 1985.
- 1994-1995: Half of sample persons age 18+ (excluded from Y2K supplement) who have donated blood since March 1985.
- 1993-1995 : SUPP1WT