Data
218,211 items of data are available, covering 181,849 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 years.
| Maximum | 70 |
| Decile 9 | 55 |
| Decile 8 | 54 |
| Decile 7 | 52 |
| Decile 6 | 52 |
| Median | 50 |
| Decile 4 | 50 |
| Decile 3 | 48 |
| Decile 2 | 46 |
| Decile 1 | 43 |
| Minimum | 18 |
|
|
- There are 53 distinct values.
- Mean = 49.8285
- Std.dev = 5.0931
- 1084 items below graph minimum of 31
- 7 items above graph maximum of 67
- 477 items have value -3 (Prefer not to answer)
- 14774 items have value -1 (Do not know)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
165,256 participants, 165,256 items
| Maximum | 68 |
| Decile 9 | 55 |
| Decile 8 | 54 |
| Decile 7 | 52 |
| Decile 6 | 51 |
| Median | 50 |
| Decile 4 | 50 |
| Decile 3 | 48 |
| Decile 2 | 46 |
| Decile 1 | 43 |
| Minimum | 18 |
|
|
- There are 51 distinct values.
- Mean = 49.6645
- Std.dev = 5.14125
- 895 items below graph minimum of 31
- 2 items above graph maximum of 67
- 370 items have value -3 (Prefer not to answer)
- 10349 items have value -1 (Do not know)
|
Instance 1 : First repeat assessment visit (2012-13)
7,713 participants, 7,713 items
| Maximum | 65 |
| Decile 9 | 55 |
| Decile 8 | 54 |
| Decile 7 | 53 |
| Decile 6 | 52 |
| Median | 51 |
| Decile 4 | 50 |
| Decile 3 | 49 |
| Decile 2 | 47 |
| Decile 1 | 44 |
| Minimum | 20 |
|
|
- There are 41 distinct values.
- Mean = 50.223
- Std.dev = 4.91401
- 46 items below graph minimum of 33
- 16 items have value -3 (Prefer not to answer)
- 549 items have value -1 (Do not know)
|
Instance 2 : Imaging visit (2014+)
39,483 participants, 39,483 items
| Maximum | 70 |
| Decile 9 | 56 |
| Decile 8 | 54 |
| Decile 7 | 53 |
| Decile 6 | 52 |
| Median | 51 |
| Decile 4 | 50 |
| Decile 3 | 49 |
| Decile 2 | 47 |
| Decile 1 | 44 |
| Minimum | 19 |
|
|
- There are 51 distinct values.
- Mean = 50.3668
- Std.dev = 4.90041
- 164 items below graph minimum of 32
- 2 items above graph maximum of 68
- 85 items have value -3 (Prefer not to answer)
- 3361 items have value -1 (Do not know)
|
Instance 3 : First repeat imaging visit (2019+)
5,759 participants, 5,759 items
| Maximum | 70 |
| Decile 9 | 56 |
| Decile 8 | 54 |
| Decile 7 | 53 |
| Decile 6 | 52 |
| Median | 51 |
| Decile 4 | 50 |
| Decile 3 | 49 |
| Decile 2 | 47 |
| Decile 1 | 44 |
| Minimum | 18 |
|
|
- There are 46 distinct values.
- Mean = 50.4271
- Std.dev = 4.87217
- 25 items below graph minimum of 32
- 1 item above graph maximum of 68
- 6 items have value -3 (Prefer not to answer)
- 515 items have value -1 (Do not know)
|
Notes
ACE touchscreen question "How old were you when your periods stopped?"
The following checks were performed:
- If answer < Age at first period then rejected
- If answer > Participants age then rejected
- If answer > 70 then rejected
- If answer < 40 then participant asked to confirm
- If answer > 60 then participant asked to confirm
If the participant activated the Help button they were shown the message:
If you are unsure, please provide an estimate or select Do not know.
|
Field 3581 was collected from women who indicated that their periods had stopped, as defined by their answers to Field 2724
Coding 100291 defines 2 special values:
- -1 represents "Do not know"
- -3 represents "Prefer not to answer"
