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, 12 (5), 5129-42

Trend of Suicide Rates According to Urbanity Among Adolescents by Gender and Suicide Method in Korea, 1997-2012

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Trend of Suicide Rates According to Urbanity Among Adolescents by Gender and Suicide Method in Korea, 1997-2012

Kyung-Hwa Choi et al. Int J Environ Res Public Health.

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.

Keywords: Korean adolescents; annual percent change; average annual percent change; suicide method; suicide trend; urbanity.

Figures

Figure 1
Figure 1
Suicide rate, annual percent change (APC), and annual average percent change (AAPC) according to gender among adolescents,15–19 years of age in Korea, 1983–2012 (data from KOSIS [2]); Model selection and p-value of AAPC comparison test estimated using Monte Carlo Permutation method [29].
Figure 2
Figure 2
Suicide rate and annual average percent change (AAPC) according to urbanity among adolescents, 15–19 years of age by gender in Korea, 1997–2012; Model selection and p-value of AAPC comparison test estimated using Monte Carlo Permutation method [29].
Figure 3
Figure 3
Method-specific suicide rate and annual average percent change (AAPC) according to urbanity among adolescents, 15–19 years of age by gender in Korea, 1997–2012; Model selection using Monte Carlo Permutation method [29].

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