Var ID

00012220

Name

GA_pwear_wkend_IMP_P2

Label

Wkend pwear imputed

Description

Phase 2 data. Number of valid hours worn during free-living over weekend days (Saturday and Sunday); across the full data file (sleep imputed). Non-wear periods are calculated as periods of time >=60 mins where the standard devigorous intensity activitytion of each of the three axes (x; y and z of the raw; triaxial accelerometry data) is <13mg. Both of these criteria are used to determine wear probability. This imputed variable is derived from imputing sleep data if certain criteria of limited night data are met (i.e. not worn between 00:00-06:00). Pwear is set to 1 during these hours to impute sleep if not worn. This variable indicates the total wear time on weekend days; across the whole data file; in hours.

Additional Information

Releases

Release 10,

Data Source

Data Context

DERIVED

Data Entry

Physical Activity

Data Availability

Available

Valid From

2023-03-18

Valid To

Present

Is Current

True

Data type

Real

Minimum Value

Maximum Value

Warning Minimum Value

Warning Maximum Value

Significant figures

Decimal Places

Maximum Length

Pattern

Format

Release 10

GA_pwear_wkend_IMP_P2

Release 8

Release 8a

None

OUTPUT

None

OUTPUT