ALGAE Data Dictionary: Later life stage covariate data (algae5400-algae5404)
by Kevin Garwood
Context of Variables
These variables describe administrative areas that study members occupied on the day they moved to a new location, as part of the later life analysis. They were produced by identifying the geocode used at start of a new address period and then mapping that to a set of administrative area codes. The codes allow epidemiologists to link these location records with covariate data that such as socio-economic levels.Location of Result File
You will find these variables in a file having a name that fits the form:res_later_cov_[Date stamp].csvwhich will be found in the directory:
later_life/results/covariates
Example Result File
See here.Variable Naming Conventions
The basic format of variables in this section follows this pattern:algae54[00-05]_[pollution type]_[aggregate value]
In this pattern, algae54
indicates that they describe properties of life
stages used in the later life analysis.
Variable Dictionary
Variable | Description |
---|---|
algae5400_person_id | An anonymised or pseudonymised identifier which represents a study member. ALGAE uses this variable to link data together for a given study member. |
algae5401_mv_to_concept_days | The number of days beginning at conception date and ending on the day of a move to a new address. |
algae5402_ed91 | The code for a UK district, taken from the UK 1991 census. |
algae5403_oa2001 | The code for a UK output area, taken from the UK 2001 census. |
algae5404_coa2011 | The code for a UK output area, taken from the UK 2011 census. |