Description
For sample adults with at least one biological daughter (BDNUM) who ever had an unknown kind of cancer (BDUKCAN), BDNUKCAN reports the number of biological daughters who had ever been told they had an unknown kind of cancer. Only respondents with at least one biological daughter (BDNUM) who ever had cancer of any kind (BDNHCAN) were asked follow-up questions about what kind(s) of cancer their daughter(s) had, and about the number of biological daughters they had with the specified type(s) of cancer (in this case, the type of cancer is unknown).
Although BDNUKCAN is only available in 2000, the broader series of related questions about cancer "Family History" were part of both the 2000, 2005, and 2010 Cancer Modules. In all three years, this section begins with the general comment:
According to the 2000 and 2005 Field Representative's Manuals, the purpose of these family cancer history questions is to "determine the prevalence of cancer in families in the population" to "allow a greater understanding of how data obtained from genetics clinics can be applied to the general population." The 2010 Manual provides a similar rationale, stating that the collection of this data "will allow analysts a greater understanding of how family history relates to cancer."
The Manuals for all three years define "biological" relatives as people related by blood. Thus, a respondent's biological daughter is a daughter related to the respondent by blood (i.e., not a stepdaughter, adopted daughter, foster daughter, or daughter-in-law).
I. Related Variables for Biological Daughter(s)
Sample adults with at least one biological daughter (BDNUM) who ever had cancer of any kind (BDNHCAN) were asked the question, "What kinds of cancer did your [biological] daughter(s) have?" As noted in the 2000, 2005, and 2010 Survey Descriptions, respondents could specify up to two types of cancer for their children. A complete listing of the types of cancer that respondents could report can be found in BDUKCAN. "Unknown kind of cancer" was recognized as a type of cancer in 2000, but dropped in 2005.
II. Unknown Kind of Cancer Variables for Other Biological Relatives
As noted, although the NHIS public use files for 2005 did not include the category "unknown kind of cancer," the category was recognized in the files for 2000. In addition to questions about biological daughter(s) with "unknown kind of cancer," the 2000 "Family History" Cancer Module also included questions related to "unknown kind of cancer" for respondents' biological son(s), full brother(s) (i.e., brother(s) with the same biological father and biological mother as the respondent), full sister(s), biological father and biological mother. A complete listing of unknown kind of cancer variables for other biological relatives in 2000 can be found in BDUKCAN.
Universe
- 2000: Sample adults age 18+ whose daughter(s) ever had unknown kind of cancer.
Codes and Frequencies
Availability
- 2000
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Weights
- 2000 : SAMPWEIGHT
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