LS variable metadata
Variable: DOBBIN
Table: CORE1x
Short description: Date of birth (binary) YYYYMMDD of LS member.
Full description: As quoted at original entry into LS sample.
Coding notes: 18xxxxxx - 20xxxxxx.
Century, year, month and day will not normally appear on an event record unless discrepant with the core record date of birth. In such cases the variable DOBD001 on the core record will also be flagged.
Notes: Month & day not available for analysis. This binary form of DOB is in addition to the character format DOBDY (DD) DODMY (MM) AND DOBYR (YYYY). It is used for arithmetical calculations, e.g. deriving age at event involving another date. It should not be used as a display field: the character representation should be used in this case.
Units of measurement:  
Former name of variable:  
Derived: N
Derivation: Not available
Date range:  
Keyword: Age
Comparable variables for other individuals:  
Comparable variables for other times:  
Restricted: Y
Data type: Numeric
Length of field: 4
Reference 1: See also DOBD001 on core file program specifications for 1991 Census - LS link.