Age, period, and cohort effects on suicide mortality in South Korea, 1992–2015

Soonjoo Park; Yeong Jun Song; Jinseob Kim; Myung Ki; Ji Yeon Shin; Young Man Kwon; Jiseun Lim

doi:10.3390/ijerph15081580

Age, period, and cohort effects on suicide mortality in South Korea, 1992–2015

Soonjoo Park, Yeong Jun Song, Jinseob Kim, Myung Ki, Ji Yeon Shin, Young Man Kwon, Jiseun Lim

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Although the effects of age, period, and cohort (APC) on suicide are important, previous work in this area may have been invalid because of an identification problem. We analyzed these effects under three different scenarios to identify vulnerable groups and thus overcame the identification problem. We extracted the annual numbers of suicides from the National Death Register of Korea (1992–2015) and estimated the APC effects. The annual average suicide rates in 1992–2015 were 31.5 and 14.7 per 100,000 males and females, respectively. The APC effects on suicide were similar in both sexes. The age effect was clearly higher in older subjects, in contrast to the minimal changes apparent during earlier adulthood. The birth cohort effect showed an inverted U shape; a higher cohort effect was evident in females born in the early 1980s when period drift was larger than 3.7%/year. Period effect increased sharply during the early 1990s and 2000s. We found that elderly and young females may be at a particularly high risk of suicide in Korea.

Original language	English
Article number	1580
Journal	International journal of environmental research and public health
Volume	15
Issue number	8
DOIs	https://doi.org/10.3390/ijerph15081580
Publication status	Published - 2018 Aug

Bibliographical note

Funding Information:
Funding: This research was supported by Basic Science Research Program through the National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT & Future Planning (approval number: NRF-2015R1C1A1A02037283) and by Eulji University in 2014 awarded to J.L. This research was also supported by a fund (2018P330300) by Research of Korea Centers for Disease Control and Prevention. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Funding Information:
This research was supported by Basic Science Research Program through the National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT & Future Planning (approval number: NRF-2015R1C1A1A02037283) and by Eulji University in 2014 awarded to J.L. This research was also supported by a fund (2018P330300) by Research of Korea Centers for Disease Control and Prevention. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Publisher Copyright:
© 2018 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

Age
Cohort effects
Identification problem
Korea
Period
Suicide

ASJC Scopus subject areas

Pollution
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.3390/ijerph15081580

Cite this

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title = "Age, period, and cohort effects on suicide mortality in South Korea, 1992–2015",

abstract = "Although the effects of age, period, and cohort (APC) on suicide are important, previous work in this area may have been invalid because of an identification problem. We analyzed these effects under three different scenarios to identify vulnerable groups and thus overcame the identification problem. We extracted the annual numbers of suicides from the National Death Register of Korea (1992–2015) and estimated the APC effects. The annual average suicide rates in 1992–2015 were 31.5 and 14.7 per 100,000 males and females, respectively. The APC effects on suicide were similar in both sexes. The age effect was clearly higher in older subjects, in contrast to the minimal changes apparent during earlier adulthood. The birth cohort effect showed an inverted U shape; a higher cohort effect was evident in females born in the early 1980s when period drift was larger than 3.7%/year. Period effect increased sharply during the early 1990s and 2000s. We found that elderly and young females may be at a particularly high risk of suicide in Korea.",

keywords = "Age, Cohort effects, Identification problem, Korea, Period, Suicide",

author = "Soonjoo Park and Song, {Yeong Jun} and Jinseob Kim and Myung Ki and Shin, {Ji Yeon} and Kwon, {Young Man} and Jiseun Lim",

note = "Funding Information: Funding: This research was supported by Basic Science Research Program through the National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT & Future Planning (approval number: NRF-2015R1C1A1A02037283) and by Eulji University in 2014 awarded to J.L. This research was also supported by a fund (2018P330300) by Research of Korea Centers for Disease Control and Prevention. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Funding Information: This research was supported by Basic Science Research Program through the National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT & Future Planning (approval number: NRF-2015R1C1A1A02037283) and by Eulji University in 2014 awarded to J.L. This research was also supported by a fund (2018P330300) by Research of Korea Centers for Disease Control and Prevention. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Publisher Copyright: {\textcopyright} 2018 by the authors. Licensee MDPI, Basel, Switzerland.",

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AU - Ki, Myung

AU - Shin, Ji Yeon

AU - Kwon, Young Man

AU - Lim, Jiseun

N1 - Funding Information: Funding: This research was supported by Basic Science Research Program through the National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT & Future Planning (approval number: NRF-2015R1C1A1A02037283) and by Eulji University in 2014 awarded to J.L. This research was also supported by a fund (2018P330300) by Research of Korea Centers for Disease Control and Prevention. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Funding Information: This research was supported by Basic Science Research Program through the National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT & Future Planning (approval number: NRF-2015R1C1A1A02037283) and by Eulji University in 2014 awarded to J.L. This research was also supported by a fund (2018P330300) by Research of Korea Centers for Disease Control and Prevention. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Publisher Copyright: © 2018 by the authors. Licensee MDPI, Basel, Switzerland.

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N2 - Although the effects of age, period, and cohort (APC) on suicide are important, previous work in this area may have been invalid because of an identification problem. We analyzed these effects under three different scenarios to identify vulnerable groups and thus overcame the identification problem. We extracted the annual numbers of suicides from the National Death Register of Korea (1992–2015) and estimated the APC effects. The annual average suicide rates in 1992–2015 were 31.5 and 14.7 per 100,000 males and females, respectively. The APC effects on suicide were similar in both sexes. The age effect was clearly higher in older subjects, in contrast to the minimal changes apparent during earlier adulthood. The birth cohort effect showed an inverted U shape; a higher cohort effect was evident in females born in the early 1980s when period drift was larger than 3.7%/year. Period effect increased sharply during the early 1990s and 2000s. We found that elderly and young females may be at a particularly high risk of suicide in Korea.

AB - Although the effects of age, period, and cohort (APC) on suicide are important, previous work in this area may have been invalid because of an identification problem. We analyzed these effects under three different scenarios to identify vulnerable groups and thus overcame the identification problem. We extracted the annual numbers of suicides from the National Death Register of Korea (1992–2015) and estimated the APC effects. The annual average suicide rates in 1992–2015 were 31.5 and 14.7 per 100,000 males and females, respectively. The APC effects on suicide were similar in both sexes. The age effect was clearly higher in older subjects, in contrast to the minimal changes apparent during earlier adulthood. The birth cohort effect showed an inverted U shape; a higher cohort effect was evident in females born in the early 1980s when period drift was larger than 3.7%/year. Period effect increased sharply during the early 1990s and 2000s. We found that elderly and young females may be at a particularly high risk of suicide in Korea.

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ER -

Age, period, and cohort effects on suicide mortality in South Korea, 1992–2015

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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