Codes and Frequencies
An 'X' indicates the category is available for that sample
Code | Label |
18
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17
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16
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15
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14
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13
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12
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11
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10
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09
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08
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07
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06
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05
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04
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03
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02
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01
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00
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99
|
98
|
97
|
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00 | NIU | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
01 | 1 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
02 | 2 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
03 | 3 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
04 | 4 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
05 | 5 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
06 | 6 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
07 | 7 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
08 | 8 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
09 | 9 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
10 | 10 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
11 | 11 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
12 | 12 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
13 | 13 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
14 | 14 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
15 | 15 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
16 | 16 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
17 | 17 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
18 | 18 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
19 | 19 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
20 | 20 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
21 | 21 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | · | X | X | X | X | X | X |
22 | 22 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
23 | 23 | X | X | X | X | X | X | X | X | X | · | X | X | · | X | X | X | X | X | X | X | X | X |
24 | 24 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | · | X | X | X | X | · | X |
Code | Label |
18
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17
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16
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15
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14
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13
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12
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11
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10
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09
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08
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07
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06
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05
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04
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03
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02
|
01
|
00
|
99
|
98
|
97
|
25 | 25 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
26 | 26 | X | X | X | X | X | X | X | X | X | X | · | · | · | X | X | X | X | X | X | X | X | X |
27 | 27 | X | X | X | X | X | X | X | X | X | · | X | X | X | X | · | X | · | X | X | X | X | X |
28 | 28 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
29 | 29 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | · | X | X | X | X | X |
30 | 30 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
31 | 31 | · | X | X | X | X | X | X | X | · | X | · | X | X | · | X | · | X | X | X | X | · | X |
32 | 32 | X | X | X | X | X | X | X | X | X | X | X | X | X | · | · | X | X | X | X | X | X | X |
33 | 33 | · | X | · | X | X | X | X | X | X | X | X | · | X | X | X | X | X | X | X | · | X | X |
34 | 34 | X | X | · | X | X | X | X | X | · | X | X | X | X | X | X | X | X | X | X | X | X | X |
35 | 35 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
36 | 36 | X | X | X | X | X | X | X | X | X | · | · | · | X | X | X | · | X | X | X | X | X | X |
37 | 37 | X | X | X | X | X | · | X | · | X | X | · | X | X | X | X | X | X | X | X | X | X | X |
38 | 38 | X | X | X | X | X | X | X | X | X | X | · | · | X | X | X | X | X | X | X | X | X | X |
39 | 39 | X | X | X | X | X | X | X | X | · | X | · | X | X | · | X | X | X | X | X | X | · | · |
40 | 40 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
41 | 41 | X | X | · | X | X | X | · | X | X | X | X | · | X | X | X | · | X | X | · | X | X | X |
42 | 42 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | · | X | · | X | X | X |
43 | 43 | X | · | X | X | X | · | · | X | X | X | · | X | X | X | X | X | · | X | X | X | X | X |
44 | 44 | · | X | X | X | X | X | X | X | · | · | X | X | · | · | X | · | X | · | · | · | · | X |
45 | 45 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
46 | 46 | X | X | X | X | X | X | X | X | X | · | X | · | X | · | · | · | X | X | · | X | · | X |
47 | 47 | X | X | X | X | X | X | X | X | · | · | · | X | X | · | X | X | · | X | · | · | X | X |
48 | 48 | X | X | X | X | X | X | X | X | X | X | X | · | X | · | · | X | X | X | X | X | X | X |
49 | 49 | X | X | X | X | X | X | X | X | · | · | · | · | · | · | X | · | · | X | · | X | · | · |
Code | Label |
18
|
17
|
16
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15
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14
|
13
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12
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11
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10
|
09
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08
|
07
|
06
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05
|
04
|
03
|
02
|
01
|
00
|
99
|
98
|
97
|
50 | 50 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
51 | 51 | X | X | X | X | X | X | X | X | X | · | X | X | X | X | X | X | · | · | · | X | X | · |
52 | 52 | X | X | X | X | X | X | X | · | X | X | X | X | · | X | · | · | · | · | X | · | X | X |
53 | 53 | · | X | X | X | X | · | X | · | · | X | · | X | · | X | X | X | X | · | X | · | X | · |
54 | 54 | X | X | X | X | X | X | · | X | · | · | X | X | X | X | · | · | X | X | X | · | X | X |
55 | 55 | X | X | X | X | X | X | X | X | · | X | X | X | · | X | X | X | X | X | X | X | · | · |
56 | 56 | X | X | X | X | X | X | X | · | X | · | · | · | X | X | X | · | · | X | X | X | X | X |
57 | 57 | X | X | X | X | X | X | X | X | X | X | X | · | X | · | X | · | · | X | X | X | · | X |
58 | 58 | X | X | X | X | · | X | X | X | X | · | · | X | · | X | X | X | X | · | X | · | X | X |
59 | 59 | · | X | X | · | · | · | X | X | X | · | · | X | · | · | · | · | · | · | · | X | · | X |
60 | 60 | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
61 | 61 | · | · | · | X | X | X | X | · | · | X | X | X | · | · | · | · | X | · | · | · | · | · |
62 | 62 | · | X | X | · | X | X | X | X | · | · | · | · | · | · | X | · | · | · | X | · | · | X |
63 | 63 | X | X | X | X | · | X | · | X | X | · | · | · | · | · | X | · | X | · | · | X | X | X |
64 | 64 | X | · | X | X | X | · | X | X | · | · | · | · | X | · | · | X | X | X | X | X | · | X |
65 | 65 | X | X | X | X | X | X | · | X | · | · | X | · | X | X | X | · | · | X | · | · | · | · |
66 | 66 | X | · | · | X | X | · | X | · | · | X | · | X | · | · | · | · | · | · | · | · | X | · |
67 | 67 | X | · | X | · | · | X | X | X | · | · | · | X | · | · | · | · | · | · | · | · | X | X |
68 | 68 | X | · | X | X | · | X | X | · | · | · | X | · | · | · | · | · | · | · | · | X | · | X |
69 | 69 | · | · | · | · | X | X | X | · | · | X | · | · | X | · | · | · | · | · | X | X | · | · |
70 | 70 | X | X | X | X | X | X | X | X | · | · | X | X | · | · | · | X | X | X | · | X | X | X |
71 | 71 | X | X | X | · | X | X | X | X | · | · | · | X | X | · | · | · | · | · | X | · | · | · |
72 | 72 | X | X | X | X | · | · | X | X | · | · | · | · | · | · | · | · | · | · | · | X | X | X |
73 | 73 | · | X | · | · | · | · | · | X | X | · | · | · | · | · | · | · | · | · | · | X | · | · |
74 | 74 | · | X | · | X | · | X | X | · | · | · | · | · | · | · | · | · | · | X | · | · | · | · |
Code | Label |
18
|
17
|
16
|
15
|
14
|
13
|
12
|
11
|
10
|
09
|
08
|
07
|
06
|
05
|
04
|
03
|
02
|
01
|
00
|
99
|
98
|
97
|
75 | 75 | X | X | X | · | · | X | X | X | X | · | · | · | X | X | · | · | · | X | · | X | · | · |
76 | 76 | · | · | · | · | · | X | · | X | · | · | X | · | · | · | X | · | · | · | · | X | · | · |
77 | 77 | · | · | · | · | · | X | · | · | · | · | · | · | · | X | · | X | X | · | · | · | · | · |
78 | 78 | · | · | · | · | · | · | · | X | · | · | · | · | · | · | · | · | · | · | · | · | · | X |
79 | 79 | X | · | X | · | · | · | · | · | · | · | · | · | X | · | · | · | · | · | · | · | · | · |
80 | 80 | X | X | · | · | X | X | · | · | · | · | X | · | X | X | · | · | X | · | · | X | · | · |
81 | 81 | · | · | · | · | X | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · |
82 | 82 | X | X | X | · | · | · | · | · | · | · | · | · | · | · | · | · | X | · | · | · | · | · |
83 | 83 | · | · | · | · | · | · | X | · | · | · | · | X | · | · | · | · | · | · | · | · | · | · |
84 | 84 | · | · | · | · | · | X | · | X | · | · | · | · | · | · | · | · | · | · | · | · | · | · |
85 | 85 | · | X | X | · | X | X | · | · | X | X | · | · | X | · | · | X | X | X | · | · | · | · |
86 | 86 | · | · | · | · | · | · | · | · | · | X | · | · | · | · | · | · | · | · | · | · | · | · |
87 | 87 | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · |
88 | 88 | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · |
89 | 89 | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · |
90 | 90 | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · |
91 | 91 | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · |
92 | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | |
93 | 93 | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · |
94 | 94 | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · |
95 | 95+ | X | · | · | X | X | · | X | · | · | · | · | · | · | · | · | · | · | · | · | · | · | · |
96 | Since birth | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
97 | Unknown-refused | X | · | · | · | X | · | · | · | X | X | X | · | X | X | X | X | X | X | X | X | X | · |
98 | Unknown-not ascertained | X | X | X | X | X | X | X | X | X | · | · | · | · | · | · | · | · | · | · | X | X | X |
99 | Unknown-don't know | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X |
Can't find the category you are looking for? Try the Detailed codes
Description
For persons who have at least one activity limitation (LANY), and for whom a vision problem was reported as a condition causing any activity limitation (CLIMVISION), CLIMVISIONNO reports the number of time units which the respondent stated when reporting the duration of the vision problem.
Data on the duration of limiting vision problem were collected via the question, "How long [have/has] [you/person] had [a vision problem or problem seeing]?" 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, CLIMVISIONTP (which specifies the time unit) and CLIMVISIONNO (which, as noted above, 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 (CLIMVISIONY) and groups of months (CLIMVISIONMO).
Universe
- 1997-2018: Persons limited due to vision problem.
Availability
- 1997-2018
Weights
- 1997-2018 : PERWEIGHT

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