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

Patellar reflex shortly after birth and one year

Our Classification

Remarks

The reflex tested by tapping just below the knee causing the lower leg to suddenly jerk forward. The normal knee-jerk reflex may range from hypoactive to brisk .

Distribution

N 1 all:4290    1:1,2%,     2:1,5%,   3a:0,2%,   3b:0,3%,   3c:20,7%,   3d:5,2%,   3e:0,9%,   3f:0,3%     4:69,7%
N 2 all:4155,   1:0,6%,    2:1,1%,   3a:0,2%,   3b:0,3%,   3c:23,8%,   3d:2,5%,   3f:1,0%,   3g:0,   4:70,3%   
N one year all:3603,    1:0.6%,   3a:0,2%,   3b:0,1%,   4:86,2%

Operationalization

Patellar reflex shortly after birth and one year as reported in medical file
1:cannot be elicited, not relaxed
2:cannot be elicited despite relaxation
3a:right side exaggerated
3b:left side exaggerated
3c:extended, relaxed
3d:crossed, relaxed
3e:extended, not relaxed
3f:crossed, not relaxed
4:both normal
Assessed at day 1 and day 5 and after one year

Observed Relation with Happiness