Data
1,415,312 items of data are available, covering 457,203 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 = 4.39316
- Std.dev = 8.8789
- 10392 items above graph maximum of 38
|
4 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
453,374 participants, 1,240,182 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 = 4.62409
- Std.dev = 9.16543
- 9835 items above graph maximum of 40
|
Instance 1 : First repeat assessment visit (2012-13)
18,097 participants, 49,566 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 = 2.4977
- Std.dev = 5.83105
- 4222 items above graph maximum of 12
|
Instance 2 : Imaging visit (2014+)
43,114 participants, 117,746 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 = 2.89949
- Std.dev = 6.47033
- 196 items above graph maximum of 32
|
Instance 3 : First repeat imaging visit (2019+)
2,915 participants, 7,818 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 = 2.27347
- Std.dev = 5.51028
- 594 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.
