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Last saw, heard, or read about AIDS: Days


AIDHEARD is a 4-digit-numeric variable.

0: Not in Universe
9994: 9994+
9995: Today
9996: Never heard of AIDS
9997: Unknown-refused
9998: Unknown-not ascertained
9999: Unknown-don't know


For sample persons age 18 and older, AIDHEARD reports the number of days since the person last saw, heard, or read something about AIDS.

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.


Changes in survey design (e.g., quarters in which the supplement was collected) may affect raw frequencies, but do not affect comparability of the variable. As always, data users should use the prescribed IHIS weights.


  • 1987: Sample persons age 18+ in quarter 3 (5th week) and quarter 4.


  • 1987