title: The effect of suicide attempts on suicide ideation by family members in fast developed country, Korea.
abstract: BACKGROUND
  Suicide is a leading cause of death globally and is one of the most exigent health problems, especially in Korea. Individuals think about suicide first before they attempt and possibly complete suicide. If attempted or completed suicide affects suicidal ideation by family members or close individuals, suicide could spread like an infectious disease. We hypothesized that a suicide attempt by a family member could affect suicidal ideation. We analyzed the association between suicidal ideation and previous suicide attempts by family members.
  
  
  METHODS
  This study used data from the fourth and fifth Korea National Health and Nutrition Examination Survey (2007-2012). The independent variable of interest is the existence of a cohabitating family member who previously attempted suicide. The dependent variable is self-reported suicide ideation during past year. The data analysis was conducted using the chi-square test and survey logistic regression.
  
  
  RESULTS
  Suicidal ideation was reported by 14.3% of the total study population (9.5% of males, 19.0% of females), by 23.6% (22.8% of males, 31.3% of females) of individuals with a family member who attempted suicide, and by 14.1% (9.3% of males, 19.9% of females) of individuals without a family member who attempted suicide. Individuals with a family member who attempted suicide had increased odds of suicidal ideation compared with those without a family member who attempted suicide (odds ratio=2.09, 95% CI 1.48-2.49, p<0.001).
  
  
  CONCLUSIONS
  To prevent suicide spreading like an infectious disease, government and policy makers should give thought and consideration to individuals with a family member who attempts suicide.
authors.affiliation: Department of Preventive Medicine and Institute of Health Services Research, Yonsei University College of Medicine, Severance Hospital, 50 Yonsei-ro Seodaemun-gu, Seoul 120-752, Republic of Korea.
authors.forename: Sung-In
authors.initials: SI
authors.lastname: Jang
authors.affiliation: Department of Preventive Medicine and Institute of Health Services Research, Yonsei University College of Medicine, Severance Hospital, 50 Yonsei-ro Seodaemun-gu, Seoul 120-752, Republic of Korea.
authors.forename: Hong-Chul
authors.initials: HC
authors.lastname: Bae
authors.affiliation: Department of Preventive Medicine and Institute of Health Services Research, Yonsei University College of Medicine, Severance Hospital, 50 Yonsei-ro Seodaemun-gu, Seoul 120-752, Republic of Korea.
authors.forename: Jaeyong
authors.initials: J
authors.lastname: Shin
authors.affiliation: Department of Preventive Medicine and Institute of Health Services Research, Yonsei University College of Medicine, Severance Hospital, 50 Yonsei-ro Seodaemun-gu, Seoul 120-752, Republic of Korea.
authors.forename: Suk-Yong
authors.initials: SY
authors.lastname: Jang
authors.affiliation: Department of Preventive Medicine and Institute of Health Services Research, Yonsei University College of Medicine, Severance Hospital, 50 Yonsei-ro Seodaemun-gu, Seoul 120-752, Republic of Korea.
authors.forename: Seri
authors.initials: S
authors.lastname: Hong
authors.affiliation: Department of Preventive Medicine and Institute of Health Services Research, Yonsei University College of Medicine, Severance Hospital, 50 Yonsei-ro Seodaemun-gu, Seoul 120-752, Republic of Korea.
authors.forename: Kyu-Tae
authors.initials: KT
authors.lastname: Han
authors.affiliation: Department of Preventive Medicine and Institute of Health Services Research, Yonsei University College of Medicine, Severance Hospital, 50 Yonsei-ro Seodaemun-gu, Seoul 120-752, Republic of Korea. Electronic address: ecpark@yuhs.ac.
authors.forename: Eun-Cheol
authors.initials: EC
authors.lastname: Park
mesh_terms: D000328:Adult; D000368:Aged; D003863:Depression / Q000453:epidemiology / Q000523:psychology; D019049:Developed Countries; D005190:Family; D005260:Female; D006304:Health Status; D006801:Humans; D008297:Male; D008875:Middle Aged; D056910:Republic of Korea / Q000453:epidemiology; D012923:Social Class; D059020:Suicidal Ideation; D013406:Suicide, Attempted / Q000523:psychology* / Q000706:statistics & numerical data; D011795:Surveys and Questionnaires; D055815:Young Adult