Data
53,543 items of data are available, covering 45,688 participants.
Some values have special meanings defined by Data-Coding
13.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Array indices run from 0 to 5.
Units of measurement are years.
| Maximum | 80.9 |
| Decile 9 | 65 |
| Decile 8 | 61.9 |
| Decile 7 | 59.3 |
| Decile 6 | 56.6 |
| Median | 53.7 |
| Decile 4 | 50.7 |
| Decile 3 | 47.3 |
| Decile 2 | 42.5 |
| Decile 1 | 35.5 |
| Minimum | 0 |
|
|
- Mean = 51.9496
- Std.dev = 11.501
- 107 items have value -1 (Date uncertain or unknown)
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
41,696 participants, 44,695 items
| Maximum | 70 |
| Decile 9 | 64 |
| Decile 8 | 61 |
| Decile 7 | 58.5 |
| Decile 6 | 55.8 |
| Median | 53 |
| Decile 4 | 50.1 |
| Decile 3 | 46.5 |
| Decile 2 | 41.9 |
| Decile 1 | 35.2 |
| Minimum | 0 |
|
|
- Mean = 51.0862
- Std.dev = 11.2065
- 100 items have value -1 (Date uncertain or unknown)
|
Instance 1 : First repeat assessment visit (2012-13)
2,279 participants, 2,429 items
| Maximum | 74.5 |
| Decile 9 | 67.6 |
| Decile 8 | 64.6 |
| Decile 7 | 62.15 |
| Decile 6 | 59.7 |
| Median | 56.8 |
| Decile 4 | 53.6 |
| Decile 3 | 50.2 |
| Decile 2 | 45.8 |
| Decile 1 | 38.5 |
| Minimum | 7 |
|
|
- Mean = 54.7148
- Std.dev = 11.3311
- 3 items have value -1 (Date uncertain or unknown)
|
Instance 2 : Imaging visit (2014+)
5,399 participants, 5,797 items
| Maximum | 80.9 |
| Decile 9 | 71.1 |
| Decile 8 | 67.5 |
| Decile 7 | 64.5 |
| Decile 6 | 61.7 |
| Median | 58.8 |
| Decile 4 | 55.5 |
| Decile 3 | 51.7 |
| Decile 2 | 47.5 |
| Decile 1 | 40.2 |
| Minimum | 0.5 |
|
|
- Mean = 56.9358
- Std.dev = 12.1688
- 4 items have value -1 (Date uncertain or unknown)
|
Instance 3 : First repeat imaging visit (2019+)
483 participants, 515 items
| Maximum | 80.3 |
| Decile 9 | 71.6 |
| Decile 8 | 67.8 |
| Decile 7 | 65.3 |
| Decile 6 | 61.9 |
| Median | 59.3 |
| Decile 4 | 56.5 |
| Decile 3 | 52.7 |
| Decile 2 | 48.3 |
| Decile 1 | 40.35 |
| Minimum | 5.5 |
|
|
- Mean = 57.7132
- Std.dev = 11.7944
|
Notes
This is the interpolated time when the participant indicated the corresponding cancer was first diagnosed by a doctor, given as their estimated age.
- If the participant gave a calendar year, then the best-fit time is their age at the mid-point of that year. For example if the year was given as 1970, and the participant was born on 1 April 1950, then their age on 1st July 1970 is 20.25
then the value presented is 1970.5 - If the participant gave their age then the value presented is the fractional year corresponding to the mid-point of that age. For example, if the participant said they were 30 years old then the value is 30.5
- Interpolated values before the date of birth were truncated forwards to that time.
- Interpolated values after the time of data acquisition were truncated back to that time.
Coding 13 defines 2 special values:
- -1 represents "Date uncertain or unknown"
- -3 represents "Preferred not to answer"
