Description

For sample adults age 18+ who have at least one functional activity limitation (FLANY), and whose limitation was due to a (non-mental retardation) developmental problem not listed on the interviewer-provided flashcard (FLOTHDEV), FLOTHDEVMO reports the duration, in months, of the (non-mental retardation) developmental problem (e.g., cerebral palsy).

Data on the duration of limiting (non-mental retardation) developmental problem were collected via the question, "How long have you had [an other developmental problem]?" 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, FLOTHDEVTP (which specifies the time unit) and FLOTHDEVNO (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 (FLOTHDEVY) and groups of months (FLOTHDEVMO).

Comparability

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

Analysts can achieve comparability across all years by combining codes with a common first digit of 9 into a single "unknown" category.

Universe

Availability

• 1997-2018

Weights

• 1997-2018 : SAMPWEIGHT