Study Feller et al. (2013): study DE 1994
- Public
 - 35-65 aged, general population, Germany, followed 4 years1994-2008
 - Survey name
 - EU-EPIC (Europ. Prospective Investigation into Cancer and Nutrition) 1994-1998
 - Sample
 - Respondents
 - N = 48976
 - Non Response
 - Assessment
 - 
        Interview: face-to-face                    
Baseline instruments to collect several aspects on diet and life-style included self-administered questionnaires, PC-guided interviews and physical examinations 
Correlate
- Authors's Label
 - Occupation
 - Our Classification
 - 
            
 - 
                        
 - Operationalization
 - a fulltime working (reference)
b parttime working
c retired
d unemployed/homemaker/maternity leave 
Observed Relation with Happiness
Very satisfied 54
Rather satisfied 58
Unsatisfied 47
- Parttime working:
Very satisfied 18
Rather satisfied 15
Unsatisfied 14
- Retired
Very satisfied 16
Rather satisfied 16
Unsatisfied 16
- Unemployed/homemaker/maternity leave
Very satisfied 12
Rather satisfied 12
Unsatisfied 22