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

Rhesus type at birth

Our Classification

Remarks

Someone either has or does not have the Rh factor on the surface of their red blood cells. This is indicated as + or -This is often combined with the ABO type. Type O+ blood is most common, though in some areas type A prevails, and there are other areas in which as many as 80 percent of the people are type B. Matching the Rhesus factor in the ABO system is very important, as mismatching (an Rh positive donor to an Rh negative recipient) will cause hemolysis. The converse is not true: Rh+ patients do not react to Rh- blood. Rh disease occurs when an Rh negative mother who has already had an Rh positive child (or an accidental Rh+ blood transfusion) carries another Rh positive child. After the first pregnancy, the mother develops IgG antibodies against Rh+ red blood cells, which can cross the placenta and hemolyse the red cells of the second child. This reaction doesn't always occur

Distribution

N all:1879,   A:21.8%,  Ba:69.6%,   Bb:0.4%,   Bc:0.8%,   Bd:1.5%,   Be:0.7%,   Bf:4.5%,   Bg:0.6%

Operationalization

Rhesus type at birth as reported in medical file
A : Rh. negative (D negative)
Ba: Rh. positive without sensitization
Bb: Rh positive with weak sensitization
Bc: Rh positive with weak to medium strong sensitization
Bd: Rh positive with medium strong sensitization
Be: Rh positive with medium strong to strong sensittization
Bf: Rh positive with strong sensitization
Bg: Rh positive with maximum sensitization

Observed Relation with Happiness