title: Trend of Suicide Rates According to Urbanity among Adolescents by Gender and Suicide Method in Korea, 1997-2012.
abstract: This study aims to quantifiably evaluate the trend of the suicide rate among Korean adolescents from 1997 to 2012 according to urbanity. We used national death certificates and registration population data by administrative district for 15-19 years-old adolescents. The annual percent change (APC) and average annual percent change (AAPC) were estimated by the Joinpoint Regression Program. The suicide rate in the rural areas was higher than that in the urban areas in both genders (males (/100,000), 12.2 vs. 8.5; females (/100,000), 10.2 vs. 7.4 in 2012). However, the trend significantly increased only in the urban area (AAPC [95% CI]: males 2.6 [0.7, 4.6], females 3.3 [1.4, 5.2]). In urban areas, the suicide rate by jumping significantly increased in both genders (AAPC [95% CI]: males, 6.7 [4.3, 9.1]; females, 4.5 [3.0, 6.1]). In rural areas, the rate by self-poisoning significantly decreased by 7.9% per year for males (95% CI: -12.5, -3.0) and the rate by hanging significantly increased by 10.1% per year for females (95% CI: 2.6, 18.2). The trend and methods of suicide differ according to urbanity; therefore, a suicide prevention policy based on urbanity needs to be established for adolescents in Korea.
authors.affiliation: Hallym Research Institute of Clinical Epidemiology, Hallym University, 1 Hallymdaehak-gil, Chuncheon, Gangwon-do 200-702, Korea. rosach72@hallym.ac.kr.
authors.forename: Kyung-Hwa
authors.initials: KH
authors.lastname: Choi
authors.affiliation: Hallym Research Institute of Clinical Epidemiology, Hallym University, 1 Hallymdaehak-gil, Chuncheon, Gangwon-do 200-702, Korea. dhkims@hallym.ac.kr.|Department of Social and Preventive Medicine, College of Medicine, Hallym University, 1 Hallymdaehak-gil, Chuncheon, Gangwon-do 200-702, Korea. dhkims@hallym.ac.kr.
authors.forename: Dong-Hyun
authors.initials: DH
authors.lastname: Kim
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D001237:Asphyxia; D002423:Cause of Death; D005260:Female; D006801:Humans; D008297:Male; D012042:Registries; D056910:Republic of Korea / Q000453:epidemiology; D012424:Rural Population / Q000706:statistics & numerical data*; D017678:Sex Distribution; D013405:Suicide / Q000706:statistics & numerical data / Q000639:trends*; D014505:Urban Population / Q000706:statistics & numerical data*
keywords: Korean adolescents; annual percent change; average annual percent change; suicide method; suicide trend; urbanity