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First biological child with known cancer has valid cancer code

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For sample persons ages 18 and older who have at least one biological child who has been diagnosed by a doctor with cancer, CH1CAN reports whether the sample person can report a valid cancer code for his or her first child with known cancer. Please use drop down menus for related variables.

NHIS released versions of this variable for up to five biological children who were ever diagnosed with cancer, but there were no in-universe responses for three, four, or five children with cancer. As such, these variables are not included in IPUMS NHIS.


There are no comparability issues with this variable.


  • 1987: Half of sample persons age 18+ (excluded from CACT) who have at least 1 child (or have an unknown number of children) and have any children diagnosed with cancer.


  • 1987