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
Respondent:
Cohort Member
Keywords:

Valid:
9377
Missing:
0
Minimum:
10.0
Maximum:
60.0

Tabulation:
ValueLabelFreq. % 
10Professional478 5.1 
20Managerial-technical1294 13.8 
31Skilled non-manual911 9.7 
32Skilled manual4481 47.8 
40Partly skilled1128 12.0 
50Unskilled734 7.8 
60Other/unknown351 3.7 
REG0_58(Derived): Region at birth (based on pre-1974 regions)
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