Data
149,269 items of data are available, covering 127,520 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 weeks.
| Maximum | 999 |
| Decile 9 | 40 |
| Decile 8 | 20 |
| Decile 7 | 12 |
| Decile 6 | 8 |
| Median | 5 |
| Decile 4 | 4 |
| Decile 3 | 3 |
| Decile 2 | 2 |
| Decile 1 | 1 |
| Minimum | 1 |
|
|
- There are 204 distinct values.
- Mean = 16.0909
- Std.dev = 40.4658
- 3971 items above graph maximum of 79
- 2257 items have value -3 (Prefer not to answer)
- 27065 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
89,300 participants, 89,300 items
| Maximum | 999 |
| Decile 9 | 40 |
| Decile 8 | 20 |
| Decile 7 | 12 |
| Decile 6 | 8 |
| Median | 5 |
| Decile 4 | 4 |
| Decile 3 | 3 |
| Decile 2 | 2 |
| Decile 1 | 1 |
| Minimum | 1 |
|
|
- There are 185 distinct values.
- Mean = 15.9316
- Std.dev = 41.6505
- 2346 items above graph maximum of 79
- 1433 items have value -3 (Prefer not to answer)
- 16158 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
10,105 participants, 10,105 items
| Maximum | 999 |
| Decile 9 | 40 |
| Decile 8 | 20 |
| Decile 7 | 12 |
| Decile 6 | 8 |
| Median | 6 |
| Decile 4 | 4 |
| Decile 3 | 3 |
| Decile 2 | 2 |
| Decile 1 | 1 |
| Minimum | 1 |
|
|
- There are 95 distinct values.
- Mean = 15.8094
- Std.dev = 37.3408
- 280 items above graph maximum of 79
- 116 items have value -3 (Prefer not to answer)
- 1860 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
43,844 participants, 43,844 items
| Maximum | 999 |
| Decile 9 | 48 |
| Decile 8 | 20 |
| Decile 7 | 12 |
| Decile 6 | 8 |
| Median | 6 |
| Decile 4 | 4 |
| Decile 3 | 3 |
| Decile 2 | 2 |
| Decile 1 | 2 |
| Minimum | 1 |
|
|
- There are 122 distinct values.
- Mean = 16.4773
- Std.dev = 39.0688
- 1136 items above graph maximum of 94
- 630 items have value -3 (Prefer not to answer)
- 7957 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
6,020 participants, 6,020 items
| Maximum | 900 |
| Decile 9 | 40 |
| Decile 8 | 20 |
| Decile 7 | 12 |
| Decile 6 | 8 |
| Median | 6 |
| Decile 4 | 4 |
| Decile 3 | 3 |
| Decile 2 | 2 |
| Decile 1 | 2 |
| Minimum | 1 |
|
|
- There are 71 distinct values.
- Mean = 16.108
- Std.dev = 37.5874
- 147 items above graph maximum of 78
- 78 items have value -3 (Prefer not to answer)
- 1090 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "How many weeks was the longest period when you were feeling depressed or down?"
Question was introduced part way through fieldwork in April 2009.
The following checks were performed:
- If answer < 1 then rejected
- If answer > 999 then rejected
Field 4609 was collected from participants who indicated they have felt depressed or down for at least a whole week, as defined by their answers to Field 4598
Coding 100291 defines 2 special values:
- -1 represents "Do not know"
- -3 represents "Prefer not to answer"
1 Related Data-Field
| Field ID | Description | Relationship |
|---|
| 4598 | Ever depressed for a whole week | Current Field was collected from participants who indicated they have felt depressed or down for at least a whole week, as defined by their answers to Field 4598 |
