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Studies

Hajak (2001): study DE 1997

Publication

Author(s):
Hajak, G.
Title:
Epidemiology of Severe Insomnia and its Consequences in Germany.
Source:
European Archives of Psychiatry and Clinical Neuroscience, 2001, Vol. 251, 49 - 56

Investigation

Public
18+ aged, general public, Germany, 1997
Sample
Probability stratified sample
Respondents
N = 1913
Non Response
Assessment
Interview: face-to-face
interview at subjects home and additional questionnaire

Happiness Measure(s) and Distributional Findings

Full text:
Self report on single question:

How satisfied are you the quality of your life these days?
1  very dissatisfied
2  dissatisfied
3  neither nor
4  satisfied
5  very satisfied

Numbering reversed in original rating scale
Classification:
O-SQL-c-sq-v-5-b
Author's label:
Global quality of life
Page in publication:
54

Correlational Findings

Author's label Subject Description Finding Severe Insomnia Current psycho-somatic complaints
Fatigue (r53)
insomnia