Data
614,420 items of data are available, covering 501,300 participants.
Some values have special meanings defined by Data-Coding
100373.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Units of measurement are glasses/day.
| Maximum | 80 |
| Decile 9 | 6 |
| Decile 8 | 4 |
| Decile 7 | 4 |
| Decile 6 | 3 |
| Median | 2 |
| Decile 4 | 2 |
| Decile 3 | 2 |
| Decile 2 | 1 |
| Decile 1 | 1 |
| Minimum | 0 |
|
|
- There are 44 distinct values.
- Mean = 2.86057
- Std.dev = 2.22047
- 2135 items above graph maximum of 11
- 41307 items have value -10 (Less than one)
- 305 items have value -3 (Prefer not to answer)
- 4052 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
501,268 participants, 501,268 items
| Maximum | 80 |
| Decile 9 | 6 |
| Decile 8 | 4 |
| Decile 7 | 4 |
| Decile 6 | 3 |
| Median | 2 |
| Decile 4 | 2 |
| Decile 3 | 2 |
| Decile 2 | 1 |
| Decile 1 | 1 |
| Minimum | 0 |
|
|
- There are 43 distinct values.
- Mean = 2.89233
- Std.dev = 2.25821
- 1886 items above graph maximum of 11
- 33340 items have value -10 (Less than one)
- 279 items have value -3 (Prefer not to answer)
- 3603 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
20,328 participants, 20,328 items
| Maximum | 20 |
| Decile 9 | 5 |
| Decile 8 | 4 |
| Decile 7 | 3 |
| Decile 6 | 2 |
| Median | 2 |
| Decile 4 | 2 |
| Decile 3 | 1 |
| Decile 2 | 1 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 18 distinct values.
- Mean = 2.348
- Std.dev = 1.89878
- 26 items above graph maximum of 10
- 1966 items have value -10 (Less than one)
- 3 items have value -3 (Prefer not to answer)
- 66 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
84,020 participants, 84,020 items
| Maximum | 49 |
| Decile 9 | 5 |
| Decile 8 | 4 |
| Decile 7 | 3 |
| Decile 6 | 3 |
| Median | 2 |
| Decile 4 | 2 |
| Decile 3 | 2 |
| Decile 2 | 1 |
| Decile 1 | 1 |
| Minimum | 0 |
|
|
- There are 25 distinct values.
- Mean = 2.80612
- Std.dev = 2.05296
- 990 items above graph maximum of 9
- 5397 items have value -10 (Less than one)
- 22 items have value -3 (Prefer not to answer)
- 351 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
8,804 participants, 8,804 items
| Maximum | 32 |
| Decile 9 | 5 |
| Decile 8 | 4 |
| Decile 7 | 3 |
| Decile 6 | 3 |
| Median | 2 |
| Decile 4 | 2 |
| Decile 3 | 2 |
| Decile 2 | 1 |
| Decile 1 | 1 |
| Minimum | 0 |
|
|
- There are 22 distinct values.
- Mean = 2.72548
- Std.dev = 2.11192
- 100 items above graph maximum of 9
- 604 items have value -10 (Less than one)
- 1 items have value -3 (Prefer not to answer)
- 32 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "How many glasses of water do you drink each DAY? "
The following checks were performed:
- If answer < 0 then rejected
- If answer > 99 then rejected
- If answer > 10 then participant asked to confirm
If the participant activated the Help button they were shown the message:
Please provide an average considering your intake over the last year.
If you are unsure, please provide an estimate or select Do not know.
|
Coding 100373 defines 3 special values:
- -10 represents "Less than one"
- -1 represents "Do not know"
- -3 represents "Prefer not to answer"
0 Related Data-Fields
There are no related data-fields
