| Description: | Spirometry method |
| Category: | Spirometry ⏴ Physical measures ⏴ Assessment Centre |
| Participants | 460,179 | Value Type | Categorical (single) | Sexed | Both sexes | Debut | Jan 2012 | |||
| Item count | 522,430 | Item Type | Data | Instances | Defined (4) | Version | Jul 2022 | |||
| Stability | Complete | Strata | Primary | Array | No | Cost Tier | d1 o1 s1 |
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Instance 1 : First repeat assessment visit (2012-13)
18,132 participants, 18,132 items
Instance 2 : Imaging visit (2014+)
44,587 participants, 44,587 items
Instance 3 : First repeat imaging visit (2019+)
3,227 participants, 3,227 items
| Category ID | Description | Items |
|---|---|---|
| 100000 | Assessment Centre | +3682 |
| 100006 | Physical measures | +517 |
| 100020 | Spirometry | 37 |
| Field ID | Description | Relationship |
|---|---|---|
| 10711 | Spirometry method (pilot) | Field 10711 is the pilot-study predecessor of main-study Current Field |
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