Data
64,065 items of data are available, covering 53,016 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 | 83 |  | Decile 9 | 55 |  | Decile 8 | 51 |  | Decile 7 | 48 |  | Decile 6 | 46 |  | Median | 44 |  | Decile 4 | 42 |  | Decile 3 | 40 |  | Decile 2 | 38 |  | Decile 1 | 34 |  | Minimum | 10 |  |   | 
There are 73 distinct values.Mean = 44.4208Std.dev = 8.4463836 items above graph maximum of 7680 items have value -3 (Prefer not to answer)1426 items have value -1 (Do not know) | 
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
50,987 participants, 50,987 items
| 
| Maximum | 69 |  | Decile 9 | 55 |  | Decile 8 | 50 |  | Decile 7 | 48 |  | Decile 6 | 45 |  | Median | 44 |  | Decile 4 | 42 |  | Decile 3 | 40 |  | Decile 2 | 37 |  | Decile 1 | 34 |  | Minimum | 10 |  |   | 
There are 59 distinct values.Mean = 43.9273Std.dev = 8.038861 items have value -3 (Prefer not to answer)1124 items have value -1 (Do not know) | 
Instance 1 : First repeat assessment visit (2012-13)
2,099 participants, 2,099 items
| 
| Maximum | 72 |  | Decile 9 | 57 |  | Decile 8 | 52 |  | Decile 7 | 49 |  | Decile 6 | 47 |  | Median | 45 |  | Decile 4 | 42 |  | Decile 3 | 40 |  | Decile 2 | 39 |  | Decile 1 | 35 |  | Minimum | 10 |  |   | 
There are 50 distinct values.Mean = 45.341Std.dev = 8.545151 items have value -3 (Prefer not to answer)45 items have value -1 (Do not know) | 
Instance 2 : Imaging visit (2014+)
9,192 participants, 9,192 items
| 
| Maximum | 83 |  | Decile 9 | 60 |  | Decile 8 | 54 |  | Decile 7 | 50 |  | Decile 6 | 48 |  | Median | 45 |  | Decile 4 | 43 |  | Decile 3 | 41 |  | Decile 2 | 39 |  | Decile 1 | 35 |  | Minimum | 12 |  |   | 
There are 68 distinct values.Mean = 46.4647Std.dev = 9.7209617 items have value -3 (Prefer not to answer)204 items have value -1 (Do not know) | 
Instance 3 : First repeat imaging visit (2019+)
1,787 participants, 1,787 items
| 
| Maximum | 83 |  | Decile 9 | 62 |  | Decile 8 | 55 |  | Decile 7 | 50 |  | Decile 6 | 48 |  | Median | 45 |  | Decile 4 | 43 |  | Decile 3 | 41 |  | Decile 2 | 39 |  | Decile 1 | 35 |  | Minimum | 10 |  |   | 
There are 61 distinct values.Mean = 46.9348Std.dev = 10.32611 items have value -3 (Prefer not to answer)53 items have value -1 (Do not know) | 
Notes
ACE touchscreen question "How old were you when you had your hysterectomy?"
The following checks were performed:
- If answer < 0 then rejected
- If answer > Participants age then rejected
- If answer < 35 then participant asked to confirm
- If answer > 69 then participant asked to confirm
- If answer < Age when had the only child or < Age when had the last child 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 2824 was collected from women who indicated they have had a hysterectomy (womb removed), as defined by their answers to Field 2724 and Field 2724
Coding 100291 defines 2 special values:
- -1 represents "Do not know"
- -3 represents "Prefer not to answer"