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
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | NIU | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
| 1 | Days | · | X | · | · | X | · | X | X | · | X | · | · | X | · | · | · | X | X | X | X | · | · |
| 2 | Weeks | X | · | · | X | X | · | · | · | · | · | X | · | X | · | · | X | X | · | X | X | X | X |
| 3 | Months | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
| 4 | Years | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
| 6 | Since birth | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
| 7 | Unknown-refused | · | · | · | · | · | · | · | · | · | · | · | · | X | · | X | · | · | X | · | X | · | · |
| 8 | Unknown-not ascertained | · | X | · | · | · | · | · | · | X | · | · | · | · | · | · | · | · | X | · | · | · | · |
| 9 | Unknown-don't know | · | · | · | · | X | · | · | · | X | · | X | · | · | · | · | · | · | X | X | X | X | X |
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Description
For persons under age 18 who have at least one activity limitation (LANY), and for whom asthma was reported as a condition causing any activity limitation (CLIMASTHMA), CLIMASTHMATP reports the time unit in which the duration of asthma was measured by the respondent.
Data on the duration of limiting asthma were collected via the question, "How long [have/has] [you/person] had [asthma]?" Respondents could answer this open-ended question using the time unit of their choice (i.e., days, weeks, months, year, or since birth). The original responses to the question are reported in two complementary variables, CLIMASTHMATP (which, as noted above, specifies the time unit) and CLIMASTHMANO (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 (CLIMASTHMAY) and groups of months (CLIMASTHMAMO).
Universe
- 1997-2013; 2014 2015 2016 2017 2018: Persons under age 18 limited due to asthma/breathing problem.
Availability
- 1997-2018
Weights
- 1997-2018 : PERWEIGHT
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