Codes and Frequencies
An 'X' indicates the category is available for that sample
| Code | Label |
17
|
16
|
08
|
02
|
99
|
|---|---|---|---|---|---|---|
| 0 | NIU | X | X | X | X | X |
| 1 | Not at all difficult | X | X | X | X | X |
| 2 | Only a little difficult | X | X | X | X | X |
| 3 | Somewhat difficult | X | X | X | X | X |
| 4 | Very difficult | X | X | X | X | X |
| 5 | Can't do at all | X | X | X | X | X |
| 6 | Do not do this activity | X | X | X | X | · |
| 7 | Unknown-refused | X | X | X | X | X |
| 8 | Unknown-not ascertained | · | · | X | X | · |
| 9 | Unknown-don't know | X | X | X | X | X |
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Description
For sample adults aged 18 and over who are not blind or for whom it was unknown if they are blind, VDIFSTEPS rates a person's level of difficulty with going down steps, stairs, or curbs in dim light or at night.
This variable is included in the Sample Adult Vision Supplement, sponsored by the National Eye Institute.
Comparability
Apart from a slight change in the universe and an introduction of a new category in the response format in the 2002 and 2008-forward surveys, VDIFSTEPS is comparable over time. Please see the Universe tab for changes in universe between samples.
The changes in response categories allow for further detail as to why a person cannot perform an activity. In 1999, the response format was constructed on a five-point, ranging from "not at all difficult" to "can't do at all" (along with unknown responses). In the 2002 survey, a new category "do not do this activity" was added. In 2008, the categories "can't do at all" and "do not do this activity" were reworded to "can't do at all because of eyesight" and "do not do this activity for other reasons."
Universe
- 1999; 2002: Sample adults age 18+ who are not blind or REF/NA/DK if blind or REF/NA/DK if have trouble seeing even when wearing glasses/contact lenses.
- 2008; 2016 2017: Sample adults 18+ who are not blind or for whom it was unknown whether they were blind.
Availability
- 1999, 2002, 2008, 2016-2017
Survey Text
| 2017 |
| 2016 |
| 2008 |
| 2002 |
| 1999 |
Questionnaire File Name: Sample Adult
Question Text:
[Fill1: Even when wearing glasses or contacts lenses, because of your eyesight, / Fill 2: Because of your eyesight,] how difficult is it for you
...To go down steps, stairs, or curbs in dim light or at night
*Read categories below.
1 Only a little difficult
2 Somewhat difficult
3 Very difficult
4 Can't do at all because of eyesight
6 Do not do this activity for other reasons
7 Refused
9 Don't know
Skip Instructions:
Questionnaire File Name: Sample Adult
Question Text:
[Fill1: Even when wearing glasses or contacts lenses, because of your eyesight, / Fill 2: Because of your eyesight,] how difficult is it for you
...To go down steps, stairs, or curbs in dim light or at night
*Read categories below.
1 Only a little difficult
2 Somewhat difficult
3 Very difficult
4 Can't do at all because of eyesight
6 Do not do this activity for other reasons
7 Refused
9 Don't know
Skip Instructions:
QuestionText:
*Read if necessary:
[Fill1: Even when wearing glasses or contacts lenses, because / Fill 2: Because ] of your eyesight, how difficult is it for you ...To go down steps, stairs, or curbs in dim light or at night
1 Only a little difficult
2 Somewhat difficult
3 Very difficult
4 Can't do at all because of eyesight
6 Do not do this activity for other reasons
7 Refused
9 Don't know
SkipInstructions:
FR: SHOW FLASHCARD A4.
1. Only a little difficult
2. Somewhat difficult
3. Very difficult
4. Can't do at all
6. Do not do this activity
(1) Only a little difficult
(2) Somewhat difficult
(3) Very difficult
(4) Can't do at all
(6) Do not do this activity
(7) Refused
(9) Don't know
AVDFCLS ...To do work or hobbies that require you to see well up close such as cooking, sewing, fixing things around the house, or using hand tools?
AVDFNIT ...To go down steps, stairs or curbs in dim light or at night?
AVDFDRV ...To drive during daytime in familiar places?
AVDFPER ...To notice objects off to the side while you are walking along?
AVDFCRD ...To find something on a crowded shelf?
Even when wearing glasses or contact lenses, because of your eyesight, how difficult is it for
you...
(0) Not at all difficult
(1) Only a little difficult
(2) Some what difficult
(3) Very difficult
(4) Can't do at all
(7) Refused
(9) Don't know
1. Only a little difficult
2. Somewhat difficult
3. Very difficult
4. Can't do at all
CLS...To do work or hobbies that require you to see well up close such as cooking, sewing, fixing things around the house, or using hand tools?
NIT...To go down steps, stairs or curbs in dim light or at night?
DRV...To drive during daytime in familiar places?
PER...To notice objects off to the side while you are walking along?
CRD...Finding something on a crowded shelf?
Weights
- 1999, 2002, 2008, 2016-2017 : SAMPWEIGHT