Var ID

00003268

Name

ax_imputed_12m

Label

Imputed data 12m

Description

Binary flag (imputed=1) indicates if the imputed data has been used in the consolidated variables for this dataset. In some instances where data is likely to be excluded non-randomly; imputation may be required. Most commonly this is observed with night recording with systematic non-adherence to wearing a monitor during sleep in a 24-hr protocol. The Pwear variable has been set to 1 during the night (midnight-6am); to impute sleep when the monitor was flagged as non-wear during those times. These data are imputed proportional to the amount of days the monitor was worn so as not to inflate wear-time over the recording period. During the creation of the consolidated variables; the standard output variables (means and intensity categories) have been updated with the imputed data if certain criteria are met (limited night data i.e. include=2). These variables are indicated in the label with consolidated. 12-month measure.

Additional Information

Releases

Release 1,

Data Source

Data Context

DERIVED

Data Entry

Physical Activity

Data Availability

Available

Valid From

2022-11-17

Valid To

Present

Is Current

True

Data type

Categorical

Minimum Value

Maximum Value

Warning Minimum Value

Warning Maximum Value

Significant figures

Decimal Places

Maximum Length

Pattern

Format

1

Sleep data imputed and imputed data used in the consolidated variables

Release 1

ax_imputed_12m

Objective PA measures

OUTPUT