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Age when child condition 1 noticed

Codes and Frequencies

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For sample children under age 18 who have at least one specific listed health condition, KIDCNAG1 reports the age of the child when the first condition was first noticed. Responses could be given in either months or years. For details on the first condition, see KIDC1.

KIDCNAG1 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 a listed health condition.


  • 1981