Data
1,414,645 items of data are available, covering 457,010 participants.
Defined-instances run from 0 to 3, labelled using Instancing
2.
Array indices run from 0 to 2.
| Maximum | 95 |
| Decile 9 | 19 |
| Decile 8 | 4 |
| Decile 7 | 2 |
| Decile 6 | 2 |
| Median | 0 |
| Decile 4 | 0 |
| Decile 3 | 0 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 90 distinct values.
- Mean = 4.39339
- Std.dev = 8.87908
- 10383 items above graph maximum of 38
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
453,186 participants, 1,239,673 items
| Maximum | 95 |
| Decile 9 | 20 |
| Decile 8 | 4 |
| Decile 7 | 2 |
| Decile 6 | 2 |
| Median | 0 |
| Decile 4 | 0 |
| Decile 3 | 0 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 90 distinct values.
- Mean = 4.62424
- Std.dev = 9.16547
- 9826 items above graph maximum of 40
|
Instance 1 : First repeat assessment visit (2012-13)
18,084 participants, 49,529 items
| Maximum | 92 |
| Decile 9 | 6 |
| Decile 8 | 2 |
| Decile 7 | 2 |
| Decile 6 | 0 |
| Median | 0 |
| Decile 4 | 0 |
| Decile 3 | 0 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 52 distinct values.
- Mean = 2.49708
- Std.dev = 5.83032
- 4217 items above graph maximum of 12
|
Instance 2 : Imaging visit (2014+)
43,071 participants, 117,634 items
| Maximum | 95 |
| Decile 9 | 16 |
| Decile 8 | 3 |
| Decile 7 | 2 |
| Decile 6 | 2 |
| Median | 0 |
| Decile 4 | 0 |
| Decile 3 | 0 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 55 distinct values.
- Mean = 2.89989
- Std.dev = 6.47094
- 196 items above graph maximum of 32
|
Instance 3 : First repeat imaging visit (2019+)
2,912 participants, 7,809 items
| Maximum | 92 |
| Decile 9 | 4 |
| Decile 8 | 2 |
| Decile 7 | 2 |
| Decile 6 | 0 |
| Median | 0 |
| Decile 4 | 0 |
| Decile 3 | 0 |
| Decile 2 | 0 |
| Decile 1 | 0 |
| Minimum | 0 |
|
|
- There are 30 distinct values.
- Mean = 2.27174
- Std.dev = 5.50946
- 593 items above graph maximum of 8
|
Notes
Acceptability of spirometry result (bit field)
START_OF_TEST Set if the extrapolated volume at start of test is excessive = 0x01
TIME_TO_PEF Set if time to peak flow is excessive = 0x02
END_OF_TEST Set if an adequate plateau at the end of the test does not exist = 0x04
COUGHING Set if a cough was detected during the manovoure = 0x08
TEST_DURATION Set if the test is less than 6 seconds = 0x10
USER_ACCEPTED Specifies whether or not the test was explicitly acceped by the investigator = 0x20
USER_REJECTED Specifies whether or not the test was explicitly rejected by the investigator = 0x40
Hence a decimal value of 24 (0x08+0x10) indicates a test of less than 6 seconds during which a cough was detected.
