Measuring depression in South Korea: validity and reliability of a brief questionnaire in the Korean Cancer Prevention Study.
J Affect Disord
; 150(3): 760-5, 2013 Sep 25.
Article
in En
| MEDLINE
| ID: mdl-23541487
ABSTRACT
OBJECTIVE:
To examine the validity and reliability of a new questionnaire for measuring depression in a South Korean population, and then to estimate the prevalence of depression in that country using this tool.METHODS:
In total, 742,600 individuals (123,725 women), aged 30-64 years at entry into the Korean Cancer Prevention Study, completed a depression symptom in 1992 (baseline enrollment) and again in 1994. We examined the concurrent validity of the depression questionnaire by relating data from it to known socio-demographic and behavioral correlates of depression; its predictive capacity by relating scores from the questionnaire to the occurrence of future hospitalization for depression; and the test-retest reliability by comparing scores from its administration in 1992 to those in 1994.RESULTS:
The prevalence of major depression was 7.5% in men and 10.0% in women. Factors significantly related to major depression were being younger (men), being female, not being married, of lower socioeconomic status, being a smoker, a heavy drinker, and not exercising regularly. Men (hazard ratio; 95% confidence interval 2.0; 1.8, 2.2) and women (1.6; 1.3, 1.9) with questionnaire-ascertained depression experienced an elevated risk of hospitalization for the disorder during follow-up. The rates of agreement between responses to 1992 and 1994 surveys were 91.3% in men and 88.3% in women.CONCLUSIONS:
These findings imply validity of the instrument and support its use in future studies directed at links of depression with somatic disease endpoints.LIMITATION:
The questions do not have a specified time frame of reference.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Surveys and Questionnaires
/
Depression
/
Depressive Disorder
Type of study:
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Country/Region as subject:
Asia
Language:
En
Journal:
J Affect Disord
Year:
2013
Document type:
Article