Codes and Frequencies
An 'X' indicates the category is available for that sample
| Code | Label |
23
|
07
|
|---|---|---|---|
| 00 | NIU | X | X |
| 10 | Less than 1 year | X | · |
| 11 | Less than 3 months | · | X |
| 12 | 3 to 11 months | · | X |
| 20 | 1 to 2 years | X | X |
| 30 | 3 to 4 years | X | X |
| 40 | 5 to 9 years | X | X |
| 50 | 10 years or more | X | · |
| 51 | 10 to 14 years | · | X |
| 52 | 15 years or more | · | X |
| 97 | Unknown-refused | X | X |
| 98 | Unknown-not ascertained | X | · |
| 99 | Unknown-don't know | X | X |
Can't find the category you are looking for? Try the Detailed codes
Description
For sample adults and sample children who have ever had a job that exposed them to loud noise 4 or more hours a day, several days a week (HRISKWRKEV), HRISKWRKTIM reports how many years the individual was exposed to loud sounds or noise for 4 or more hours a day, several days a week. In 2007, this question was asked to only sample adults.
For a full list of hearing related variables available for all years, see HEARING.
Comparability
Because the intervals used to record respondents' answers varies over time, IPUMS NHIS uses a composite coding system for HRISKWRKTIM to maximize comparability.
[show more]The first digit identifies time periods which can be identified in all years: less than one year (code 1), 1 to 2 years (code 2), 3 to 4 years (code 3), 5 to 9 years (code 4), and 10 years or more (code 5). The second digit identify periods specified for only a subgroup of years.
In addition to changes in universe, the NHIS questionnaire was substantially redesigned in 2019 to introduce a different data collection structure and new content. For more information on changes in terminology, universes, and data collection methods beginning in 2019, please see the user note.
Universe
- 2007: Sample adults age 18+ who have ever had a job that exposed them to loud noise 4 or more hours a day, several days a week (HRISKWRKEV).
- 2023: Sample adults age 18+ and sample children age 12-17 who have ever had a job that exposed them to loud noise 4 or more hours a day, several days a week (HRISKWRKEV).
Availability
- 2007, 2023
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Weights
- 2007, 2023 : SAMPWEIGHT