| Description: | Acceleration data - cwa format |
| Category: | Physical activity measurement ⏴ Additional exposures |
| Participants | 103,664 | Value Type | Text | Sexed | Both sexes | Debut | Jun 2013 | |||
| Item count | 115,436 | Item Type | Bulk | Instances | Defined (5) | Version | Feb 2019 | |||
| Stability | Accruing | Strata | Primary | Array | No | Cost Tier | d2 o1 s2 |
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The values held within this field are coded links to files held within a bulk repository, not the actual data itself.
Instance 1 : Seasonal repeat 1
2,632 participants, 2,632 items
Data not meaningful for statistical summary
Instance 2 : Seasonal repeat 2
3,093 participants, 3,093 items
Data not meaningful for statistical summary
Instance 3 : Seasonal repeat 3
3,037 participants, 3,037 items
Data not meaningful for statistical summary
Instance 4 : Seasonal repeat 4
3,010 participants, 3,010 items
Data not meaningful for statistical summary
Files are typically 250MB each in the raw state and usually compress to around 100MB.
| Category ID | Description | Items |
|---|---|---|
| 727 | Acceleromoter data | 2 |
| 100088 | Additional exposures | +357 |
| 1008 | Physical activity measurement | 4+206 |
| Field ID | Description | Relationship |
|---|---|---|
| 90004 | Acceleration intensity time-series | Field 90004 is derived from Current Field |
| 90002 | Data problem indicator | Field 90002 indicates the quality of the data held in Current Field |
| 90003 | Start of requested wear period | Field 90003 gives the programmed starting date for the information held in Current Field |
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