Table 2. Relationship Between Ethnicity Categories in NCHS Data and Categories Mandated by OMB Source: U.S. Bureau of the Census Internet Release date: June 1997 NCHS Category OMB Mandated Category Non-Hispanic------------------------------------Non-Hispanic Mexican--------------------------| | Puerto Rican | | Cuban |--------------Hispanic | Central or South American | | Other Hispanic-------------------| Unknown-----------------------------------------must be recoded into one of the above categories