LS variable metadata
Variable: GREFN7
Table: ME71x
Short description: Grid reference - Northing. 1971.
Full description:  
Coding notes: 3 characters numeric, fourth character either numeric or Blank.
Error codes:
E1 ref = Blank;
E2 ref = invalid;
E3 ref = outside ED triangle;
E4 ref = occurs more than once;
E5 ref = differs within dwelling.
Notes: Not available for analysis.
Units of measurement:  
Source:  
Former name of variable: GREFN
Derived: N
Derivation: Not available
Subject:  
Date range:  
Keyword: Geog
Classification:  
Comparable variables for other individuals:  
Comparable variables for other times:  
Restricted: Y
Data type: Text
Length of field: 8