Data
144,731 items of data are available, covering 125,254 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 202 distinct values.
- Mean = 16.0355
- Std.dev = 40.4544
- 3824 items above graph maximum of 79
- 2192 items have value -3 (Prefer not to answer)
- 26221 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
89,305 participants, 89,305 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 = 15.9323
- Std.dev = 41.6496
- 2346 items above graph maximum of 79
- 1433 items have value -3 (Prefer not to answer)
- 16159 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+)
41,047 participants, 41,047 items
| Maximum | 999 |
| Decile 9 | 45 |
| 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 120 distinct values.
- Mean = 16.3389
- Std.dev = 38.9197
- 1058 items above graph maximum of 88
- 589 items have value -3 (Prefer not to answer)
- 7454 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
4,274 participants, 4,274 items
| Maximum | 900 |
| Decile 9 | 37.5 |
| 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 64 distinct values.
- Mean = 15.8145
- Std.dev = 36.5178
- 102 items above graph maximum of 73
- 54 items have value -3 (Prefer not to answer)
- 748 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 |
