Codes and Frequencies
An 'X' indicates the category is available for that sample
| Code | Label |
23
|
17
|
16
|
08
|
|---|---|---|---|---|---|
| 0 | NIU | X | X | X | X |
| 1 | No | X | X | X | X |
| 2 | Yes | X | X | X | X |
| 7 | Unknown-refused | · | · | · | X |
| 8 | Unknown-not ascertained | · | · | · | · |
| 9 | Unknown-don't know | X | X | X | X |
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Description
For sample adults who were ever told they have cataracts (CATARACTEV), CATARACTVLOS indicates if the person ever lost vision because of cataracts. Please see the Universe tab for changes in this variable's universe since 2023.
[show more]The 2008 Field Representative's Manual described cataracts as, "clouding of the lenses which causes a general loss of detail. This may cause problems with glare or distortion, such as double images."
This variable was part of the Sample Adult Vision supplement, sponsored by the National Eye Institute.
Comparability
This variable is largely comparable over time. There was a change in universe starting in 2023; see the Universe tab for details.
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
- 2008 2016 2017: Sample adults age 18+ who were ever told they have cataracts.
- 2023: Sample adults age 45+ who have ever been told they had cataracts.
Availability
- 2008, 2016-2017, 2023
Survey Text
| 2023 |
| 2017 |
| 2016 |
| 2008 |
Variable: VIMLSCA_A
Interview Module: Adult
Content Type: Sponsored Content
Question text:
2 - No
7 - Refused
9 - Don't Know
Questionnaire File Name: Sample Adult
Question Text:
2 No
7 Refused
9 Don't know
Skip Instructions:
Questionnaire File Name: Sample Adult
Question Text:
2 No
7 Refused
9 Don't know
Skip Instructions:
QuestionText:
2 No
7 Refused
9 Don't know
SkipInstructions:
Weights
- 2008, 2016-2017, 2023 : SAMPWEIGHT