Data
566,616 items of data are available, covering 480,501 participants.
Some values have special meanings defined by Data-Coding
100291.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Units of measurement are minutes/day.
Maximum | 1440 |
Decile 9 | 120 |
Decile 8 | 75 |
Decile 7 | 60 |
Decile 6 | 45 |
Median | 30 |
Decile 4 | 30 |
Decile 3 | 20 |
Decile 2 | 20 |
Decile 1 | 15 |
Minimum | 0 |
|
|
- There are 306 distinct values.
- Mean = 60.959
- Std.dev = 76.3438
- 24689 items above graph maximum of 225
- 636 items have value -3 (Prefer not to answer)
- 57935 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
477,747 participants, 477,747 items
Maximum | 1440 |
Decile 9 | 120 |
Decile 8 | 75 |
Decile 7 | 60 |
Decile 6 | 45 |
Median | 30 |
Decile 4 | 30 |
Decile 3 | 20 |
Decile 2 | 20 |
Decile 1 | 15 |
Minimum | 0 |
|
|
- There are 293 distinct values.
- Mean = 61.6422
- Std.dev = 78.7963
- 22059 items above graph maximum of 225
- 577 items have value -3 (Prefer not to answer)
- 51707 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
19,691 participants, 19,691 items
Maximum | 720 |
Decile 9 | 120 |
Decile 8 | 60 |
Decile 7 | 60 |
Decile 6 | 40 |
Median | 30 |
Decile 4 | 30 |
Decile 3 | 20 |
Decile 2 | 20 |
Decile 1 | 15 |
Minimum | 0 |
|
|
- There are 102 distinct values.
- Mean = 50.251
- Std.dev = 56.4533
- 506 items above graph maximum of 225
- 13 items have value -3 (Prefer not to answer)
- 1497 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
63,879 participants, 63,879 items
Maximum | 1400 |
Decile 9 | 120 |
Decile 8 | 80 |
Decile 7 | 60 |
Decile 6 | 60 |
Median | 40 |
Decile 4 | 30 |
Decile 3 | 30 |
Decile 2 | 20 |
Decile 1 | 15 |
Minimum | 0 |
|
|
- There are 167 distinct values.
- Mean = 59.2873
- Std.dev = 63.6676
- 1955 items above graph maximum of 225
- 42 items have value -3 (Prefer not to answer)
- 4420 items have value -1 (Do not know)
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Instance 3 : First repeat imaging visit (2019+)
5,299 participants, 5,299 items
Maximum | 720 |
Decile 9 | 120 |
Decile 8 | 90 |
Decile 7 | 60 |
Decile 6 | 60 |
Median | 45 |
Decile 4 | 30 |
Decile 3 | 30 |
Decile 2 | 20 |
Decile 1 | 20 |
Minimum | 0 |
|
|
- There are 58 distinct values.
- Mean = 61.6302
- Std.dev = 60.4194
- 169 items above graph maximum of 220
- 4 items have value -3 (Prefer not to answer)
- 311 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "How many minutes did you usually spend walking on a typical DAY?"
The following checks were performed:
- If answer < 0 then rejected
- If answer > 1440 then rejected
- If answer < 10 then participant asked to confirm
- If answer > 300 then participant asked to confirm
If the participant activated the Help button they were shown the message:
Count the number of minutes that you usually spend walking in one day. If the time you usually spend walking on each day of the week varies a lot, give an average of the time you spend walking. For instance if on one day of the week you usually walk for 4 hours but on the other day you walk 2 hours then give the average - that is 3 hours.
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Field 874 was collected from participants who indicated that they walked for 10 minutes on at least 1 day per week in the previous 4 weeks, as defined by their answers to Field 864
Coding 100291 defines 2 special values:
- -1 represents "Do not know"
- -3 represents "Prefer not to answer"
2 Related Data-Fields
Field ID | Description | Relationship |
10953 | Duration of walks (pilot) | Field 10953 is the pilot-study predecessor of main-study Current Field |
864 | Number of days/week walked 10+ minutes | Current Field was collected from participants who indicated that they walked for 10 minutes on at least 1 day per week in the previous 4 weeks, as defined by their answers to Field 864 |