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FLCANCERY
Duration of functionally limiting cancer: Years

Codes and Frequencies



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Description

For sample adults age 18+ who have at least one functional activity limitation (FLANY), and for whom cancer was reported as a condition causing any functional activity limitation (FLCANCER), FLCANCERY reports the duration, in years, of the cancer.

Data on the duration of limiting cancer were collected via the question, "How long have you had [cancer]?" Respondents could answer this open-ended question using the time unit of their choice (i.e., days, weeks, months, years, or since birth). The original responses to the question are reported in two complementary variables, FLCANCERTP (which specifies the time unit) and FLCANCERNO (which reports the number of such units). For the NHIS public use files, the National Center for Health Statistics (NCHS) recoded the results from these two variables to create two other variables using standard time units: years (FLCANCERY) and groups of months (FLCANCERMO).

Comparability

Apart from a change in the coding of "unknown" cases, this variable is comparable across years.

 

In 2002 forward, the unknowns were categorized as:

  • Unknown number of years (IPUMS NHIS code 96)
  • Unknown-refused (IHIS code 97)
  • Unknown-not ascertained (IHIS code 98)
  • Unknown-don't know (IHIS code 99)

However, in 1997-2001, the category of "Unknown number of years" did not occur.

Analysts can achieve comparability across all years by combining codes for values of 96 and above into a single "unknown" category.

Universe

  • 1997-2013; 2014 2015 2016 2017 2018: Sample adults age 18+ who have difficulty with activities due to cancer.

Availability

  • 1997-2018

Weights