Data
604,070 items of data are available, covering 501,487 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 cups/day.
Maximum | 80 |
Decile 9 | 5 |
Decile 8 | 4 |
Decile 7 | 3 |
Decile 6 | 2 |
Median | 2 |
Decile 4 | 1 |
Decile 3 | 1 |
Decile 2 | 0 |
Decile 1 | 0 |
Minimum | 0 |
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- There are 42 distinct values.
- Mean = 2.1339
- Std.dev = 2.08628
- 1522 items above graph maximum of 10
- 43282 items have value -10 (Less than one)
- 419 items have value -3 (Prefer not to answer)
- 1013 items have value -1 (Do not know)
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4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
501,458 participants, 501,458 items
Maximum | 80 |
Decile 9 | 5 |
Decile 8 | 4 |
Decile 7 | 3 |
Decile 6 | 2 |
Median | 2 |
Decile 4 | 1 |
Decile 3 | 1 |
Decile 2 | 0 |
Decile 1 | 0 |
Minimum | 0 |
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|
- There are 41 distinct values.
- Mean = 2.13363
- Std.dev = 2.12654
- 1371 items above graph maximum of 10
- 36299 items have value -10 (Less than one)
- 401 items have value -3 (Prefer not to answer)
- 968 items have value -1 (Do not know)
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Instance 1 : First repeat assessment visit (2012-13)
20,333 participants, 20,333 items
Maximum | 36 |
Decile 9 | 5 |
Decile 8 | 4 |
Decile 7 | 3 |
Decile 6 | 2 |
Median | 2 |
Decile 4 | 1 |
Decile 3 | 1 |
Decile 2 | 0 |
Decile 1 | 0 |
Minimum | 0 |
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|
- There are 23 distinct values.
- Mean = 2.18857
- Std.dev = 2.02431
- 46 items above graph maximum of 10
- 1512 items have value -10 (Less than one)
- 2 items have value -3 (Prefer not to answer)
- 9 items have value -1 (Do not know)
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Instance 2 : Imaging visit (2014+)
75,333 participants, 75,333 items
Maximum | 70 |
Decile 9 | 4 |
Decile 8 | 3 |
Decile 7 | 3 |
Decile 6 | 2 |
Median | 2 |
Decile 4 | 1 |
Decile 3 | 1 |
Decile 2 | 1 |
Decile 1 | 0 |
Minimum | 0 |
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|
- There are 26 distinct values.
- Mean = 2.12079
- Std.dev = 1.84596
- 394 items above graph maximum of 8
- 5033 items have value -10 (Less than one)
- 14 items have value -3 (Prefer not to answer)
- 34 items have value -1 (Do not know)
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Instance 3 : First repeat imaging visit (2019+)
6,946 participants, 6,946 items
Maximum | 15 |
Decile 9 | 4 |
Decile 8 | 3 |
Decile 7 | 3 |
Decile 6 | 2 |
Median | 2 |
Decile 4 | 1 |
Decile 3 | 1 |
Decile 2 | 1 |
Decile 1 | 0 |
Minimum | 0 |
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|
- There are 16 distinct values.
- Mean = 2.13607
- Std.dev = 1.78661
- 37 items above graph maximum of 8
- 438 items have value -10 (Less than one)
- 2 items have value -3 (Prefer not to answer)
- 2 items have value -1 (Do not know)
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Notes
ACE touchscreen question "How many cups of coffee do you drink each DAY? (Include decaffeinated coffee)"
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.
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Coding 100373 defines 3 special values:
- -10 represents "Less than one"
- -1 represents "Do not know"
- -3 represents "Prefer not to answer"