R - Derived Variables

The main survey was conducted by a nurse

Derived Variables
SMOK42_1(Derived): Smoking at 42 codes 0 to 2
SMOK42_2(Derived): Smoking at 42 codes 0 to 6
SC42_1(Derived): Social Class at 42
SC0_1(Derived): Social Class at birth
REG0_58(Derived): Region at birth (based on pre-1974 regions)
Question:
None
Question Asked:
None
Respondent:
None
Keywords:

Valid:
9023
Missing:
354
Minimum:
0.0
Maximum:
11.0
Coding Frame:
None
Derivation:
None
Derivation Code:
Notes:
None

Tabulation:
ValueLabelFreq. % 
0Northwestern1130 12.5 
1Northern655 7.3 
2East & West Ridings770 8.5 
3East Midland687 7.6 
4Eastern695 7.7 
5Southeastern474 5.3 
6Southern547 6.1 
7Southwestern521 5.8 
8Wales483 5.4 
9West Midlands846 9.4 
10Scotland931 10.3 
11Greater London1284 14.2 
REG46_58(Derived): Region at age 46 (based on pre-1974 regions)
REG46_04(Derived): Region at age 46 (based on post-1974 regions)
BRESPS0(Derived): Final outcome code
BRESPS1(Derived): Summary of cohort, issued sample and response to biomed
BRESPS2(Derived): NCDS biomedical response - all cohort