Description
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, OP2YOB reports the year the second other parent with cancer was born.
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.
