Data
592,090 items of data are available, covering 501,494 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 43 distinct values.
- Mean = 2.86129
- Std.dev = 2.22624
- 2082 items above graph maximum of 11
- 40058 items have value -10 (Less than one)
- 299 items have value -3 (Prefer not to answer)
- 3941 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
501,472 participants, 501,472 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 = 2.89255
- Std.dev = 2.25832
- 1888 items above graph maximum of 11
- 33350 items have value -10 (Less than one)
- 279 items have value -3 (Prefer not to answer)
- 3604 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
20,334 participants, 20,334 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 = 2.34829
- Std.dev = 1.89945
- 26 items above graph maximum of 10
- 1967 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+)
64,924 participants, 64,924 items
| Maximum | 30 |
| 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 = 2.78219
- Std.dev = 2.04294
- 754 items above graph maximum of 9
- 4356 items have value -10 (Less than one)
- 16 items have value -3 (Prefer not to answer)
- 251 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
5,360 participants, 5,360 items
| Maximum | 30 |
| 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 20 distinct values.
- Mean = 2.78987
- Std.dev = 2.19811
- 80 items above graph maximum of 9
- 385 items have value -10 (Less than one)
- 1 items have value -3 (Prefer not to answer)
- 20 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
