TY - JOUR
T1 - Measuring depression in South Korea
T2 - Validity and reliability of a brief questionnaire in the Korean Cancer Prevention Study
AU - Chang, Hyoung Yoon
AU - Shin, Yee Jin
AU - Batty, G. David
AU - Son, Dong Koog
AU - Yun, Young Duk
AU - Jee, Sun Ha
AU - Mok, Yejin
AU - Samet, Jonathan M.
N1 - Funding Information:
The authors thank the staff of the Korean National Health Insurance Corporation. This study was supported by a grant from the Seoul R&BD Program, Republic of Korea (10526), and a grant from the National Research Foundation of Korea (NRF) funded by the Korea government (MEST)(2011-0029348). David Batty was a Wellcome Trust Fellow during the preparation of this manuscript. The authors thank Athena Foong for her editorial assistance. Appendix A
PY - 2013/9/25
Y1 - 2013/9/25
N2 - 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.
AB - 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.
KW - Depression
KW - Epidemiology
KW - Prevalence
KW - Questionnaire
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U2 - 10.1016/j.jad.2013.02.035
DO - 10.1016/j.jad.2013.02.035
M3 - Article
C2 - 23541487
AN - SCOPUS:84888371469
VL - 150
SP - 760
EP - 765
JO - Journal of Affective Disorders
JF - Journal of Affective Disorders
SN - 0165-0327
IS - 3
ER -