Description
For sample adults with at least one full sister who ever had an unknown kind of cancer (FSUKCAN), FSNUKCAN reports the number of full sisters who had ever been told they had an unknown kind of cancer. Only persons with at least one full sister (FSNUM) who ever had cancer of any kind (FSNHCAN) were asked follow-up questions about what kind(s) of cancer their full sister(s) had, and about the number of full sisters they had with the specified type(s) of cancer (in this case, the type of cancer is unknown).
Although FSNUKCAN 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 "full siblings" as people who have "the same biological father and mother." Thus, a respondent's full sister is a sister who has the same biological father and mother as the respondent (i.e., not half-sisters, stepsisters, adopted sisters, foster sisters, or sisters-in-law).
I. Related Variables for Full Sister(s)
Sample adults with at least one full sister who ever had cancer of any kind (FSNHCAN) were asked the follow-up question, "What kinds of cancer did your [full] sister(s) have?" As noted in the 2000, 2005, and 2010 Survey Descriptions, respondents could specify up to two types of cancer for their siblings. A complete listing of other types of cancer, besides unknown kinds of cancer, respondents could report is found in FSUKCAN. "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 and 2010 did not include the category "unknown kind of cancer," the category was recognized in the files for 2000. In addition to questions about full sister(s) (i.e., sister(s) with the same biological father and biological mother as the respondent) with "unknown kind of cancer," the 2000 "Family History" Cancer Module also included questions related to "unknown kind of cancer" for respondents' biological daughter(s), biological son(s), full brother(s), biological father and biological mother. A complete listing of unknown kind of cancer variables for other biological relatives can be found in FSUKCAN.
Universe
- 2000: Sample adults age 18+ whose sister(s) ever had cancer.
Codes and Frequencies
Availability
- 2000
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Weights
- 2000 : SAMPWEIGHT
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