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Chronic status of child condition 12

Codes and Frequencies

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For sample children under age 18 who have at least twelve specific listed health conditions, KIDCHRON12 is a recoded variable, which reports whether the twelfth condition listed was chronic or not. Chronic was defined as a condition lasting three months or longer (or since birth, for infants less than three months old), which has not been cured. For details on the twelfth condition, see KIDC12.

KIDCHRON12 was introduced in 1981 as part of the Child Health Supplement. For related variables, please use the IPUMS NHIS search function or drop-down menus.


There are no comparability issues with this variable.


  • 1981: Sample persons under age 18 with 12 or more listed health conditions.


  • 1981