Study Ventegodt (1997): study DK 1993
- Public
 - 31-33 aged, born at the university hospital, Denmark, 1993
 - Sample
 - Respondents
 - N = 4626
 - Non Response
 - 36%
 - Assessment
 - 
        Questionnaire: Paper & Pencil Interview (PAPI)                    
Data were taken from the medical files of mothers and their babies 
Correlate
- Authors's Label
 - Mother's post partum conditions
 - Our Classification
 - 
            
 - 
                        
 - Remarks
 - Because answers can be overlapping, only absolute frequencies are given
 - Distribution
 - N: 1:3376, 2:1201, 2a:10, 2b:402, 2c:55, 2d:66, 2e:206, 2f:462
 - Operationalization
 - Mother's post partum conditions as reported in medical file
1: no condition
2: one of more conditions:
2a: haemorrhagia
2b: puerperal complications
2c: sterilization after birth
2d: other puerperal complications
2e: proteinura after delivery
2f: hypertension after delivery 
Observed Relation with Happiness
2: Mt=7.78
2a: Mt=8.00
2b: Mt=7.68
2c: Mt=7.31
2d: Mt=8.23
2e: Mt=7.88
2f: Mt=7.81
2: Mt=7.44
2a: Mt=8.00
2b: Mt=7.28
2c: Mt=6.95
2d: Mt=8.03
2e: Mt=7.60
2f: Mt=7.48
2: Mt=7.04
2a: Mt=7.75
2b: Mt=7.03
2c: Mt=6.41
2d: Mt=7.24
2e: Mt=7.08
2f: Mt=7.06