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Number of biological children with second other parent with known cancer


BCHOP2NUM is a two-digit count variable.

96: NIU
99: Unknown


For sample persons ages 18 and older who have at least two other biological parents of the person's child(ren) who have been diagnosed by a doctor with cancer for which the sample person gave a valid cancer code, BCHOP2NUM reports the number of biological children the person has had with the second other parent diagnosed with cancer.

Versions of this variable are available for up to three other biological parents of the person's children. Please use the drop down menu and search function for related variables.


There are no comparability issues with this variable.


  • 1987: Half of sample persons age 18+ (excluded from CACT supplement) who have at least 1 child (or an unknown number of children), for whom the other parent of any of their children had ever had cancer, for whom the first other parent mentioned was not the parent of all the respondent's children, and who gave a valid cancer code for the 2nd parent's cancer.


  • 1987