Data
158,209 items of data are available, covering 131,776 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 periods.
| Maximum | 9999 |
| Decile 9 | 8 |
| Decile 8 | 5 |
| Decile 7 | 3 |
| Decile 6 | 3 |
| Median | 2 |
| Decile 4 | 2 |
| Decile 3 | 1 |
| Decile 2 | 1 |
| Decile 1 | 1 |
| Minimum | 1 |
|
|
- There are 145 distinct values.
- Mean = 5.92847
- Std.dev = 44.1817
- 5236 items above graph maximum of 15
- 2624 items have value -3 (Prefer not to answer)
- 39986 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
89,271 participants, 89,271 items
| Maximum | 3000 |
| Decile 9 | 8 |
| Decile 8 | 5 |
| Decile 7 | 3 |
| Decile 6 | 3 |
| Median | 2 |
| Decile 4 | 2 |
| Decile 3 | 1 |
| Decile 2 | 1 |
| Decile 1 | 1 |
| Minimum | 1 |
|
|
- There are 127 distinct values.
- Mean = 6.3198
- Std.dev = 36.1846
- 3129 items above graph maximum of 15
- 1627 items have value -3 (Prefer not to answer)
- 23442 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
10,098 participants, 10,098 items
| Maximum | 1000 |
| Decile 9 | 8 |
| Decile 8 | 4 |
| Decile 7 | 3 |
| Decile 6 | 2 |
| Median | 2 |
| Decile 4 | 2 |
| Decile 3 | 1 |
| Decile 2 | 1 |
| Decile 1 | 1 |
| Minimum | 1 |
|
|
- There are 49 distinct values.
- Mean = 5.30234
- Std.dev = 28.5435
- 333 items above graph maximum of 15
- 123 items have value -3 (Prefer not to answer)
- 2510 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
49,089 participants, 49,089 items
| Maximum | 9999 |
| Decile 9 | 6 |
| Decile 8 | 4 |
| Decile 7 | 3 |
| Decile 6 | 2 |
| Median | 2 |
| Decile 4 | 2 |
| Decile 3 | 1 |
| Decile 2 | 1 |
| Decile 1 | 1 |
| Minimum | 1 |
|
|
- There are 92 distinct values.
- Mean = 5.54806
- Std.dev = 59.4433
- 1886 items above graph maximum of 11
- 730 items have value -3 (Prefer not to answer)
- 11757 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
9,751 participants, 9,751 items
| Maximum | 1000 |
| Decile 9 | 6 |
| Decile 8 | 4 |
| Decile 7 | 3 |
| Decile 6 | 2 |
| Median | 2 |
| Decile 4 | 2 |
| Decile 3 | 1 |
| Decile 2 | 1 |
| Decile 1 | 1 |
| Minimum | 1 |
|
|
- There are 60 distinct values.
- Mean = 5.03806
- Std.dev = 28.9677
- 344 items above graph maximum of 11
- 144 items have value -3 (Prefer not to answer)
- 2277 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "How many periods have you had when you were feeling depressed or down for at least a whole week?"
Question was introduced part way through fieldwork in April 2009.
The following checks were performed:
- If answer < 1 then rejected
- If answer > 9999 then rejected
Field 4620 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 |
