Codes and Frequencies
An 'X' indicates the category is available for that sample
| Code | Label |
18
|
17
|
16
|
15
|
14
|
13
|
12
|
11
|
10
|
09
|
08
|
07
|
06
|
05
|
04
|
03
|
02
|
01
|
00
|
99
|
98
|
97
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 00 | NIU | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
| 10 | Less than 3 months | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
| 20 | 3 to 5 months | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
| 30 | 6 to 12 months | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
| 40 | More than 12 months | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
| 90 | Unknown | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · |
| 91 | Unknown number of days | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · |
| 92 | Unknown number of weeks | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · |
| 93 | Unknown number of months | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · |
| 94 | Unknown number of years | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | X | X | X | X | · |
| 95 | Unknown time with condition | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | X | X | X | · | X |
| 97 | Unknown-refused | · | X | · | · | · | · | · | · | X | · | X | X | X | · | X | · | X | · | · | · | · | · |
| 98 | Unknown-not ascertained | · | · | · | · | · | · | · | · | · | · | · | · | · | X | · | · | · | · | · | · | · | · |
| 99 | Unknown-don' t know | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | · | · | · | · | · |
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Description
For persons age 18+ who have at least one activity limitation (LANY), and for whom a digestive problem was reported as a condition causing any activity limitation (CLIMDIGEST), CLIMDIGESTMO reports the duration, in months, of digestive problem.
Data on the duration of limiting digestive problem were collected via the question, "How long [have/has] [you/person] had [digestive problems]?" Respondents could answer this open-ended question using the time unit of their choice (i.e., days, weeks, months, or years). The original responses to the question are reported in two complementary variables, CLIMDIGESTTP (which specifies the time unit) and CLIMDIGESTNO (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 (CLIMDIGESTY) and groups of months (CLIMDIGESTMO).
Comparability
Apart from a change in the coding of "unknown" cases, this variable is comparable across years.
[show more]All "unknown" cases for this variable share a common first digit of "9." The meaning of the second digit following the 9 differs for 2001 versus 2002 forward. In the earlier period, the "unknowns" were categorized as:
- Unknown number of days (IPUMS NHIS code 91)
- Unknown number of weeks (IHIS code 92)
- Unknown number of months (IHIS code 93)
- Unknown number of years (IHIS code 94)
- Unknown time with condition (IHIS code 95)
In the latter period, "unknowns" were categorized as:
- Unknown-refused (IHIS code 97)
- Unknown-not ascertained (IHIS code 98)
- Unknown-don't know (IHIS code 99)
Analysts can achieve comparability across all years by combining codes with a common first digit of 9 into a single "unknown" category.
Universe
- 1997-2013; 2014 2015 2016 2017 2018: Persons age 18+ limited due to digestive problem.
Availability
- 1997-2018
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Weights
- 1997-2018 : PERWEIGHT