Association of Bedtime with both Suicidal Ideation and Suicide Planning among Korean Adolescents

Wonjeong Jeong, Yun Kyung Kim, Hyeon Ji Lee, Jieun Jang, Selin Kim, Eun-Cheol Park and Sung-In Jang
Additional contact information
Wonjeong Jeong: Department of Public Health, Graduate School, Yonsei University, Seoul 03722, Korea
Yun Kyung Kim: Department of Public Health, Graduate School, Yonsei University, Seoul 03722, Korea
Hyeon Ji Lee: Department of Public Health, Graduate School, Yonsei University, Seoul 03722, Korea
Jieun Jang: Department of Public Health, Graduate School, Yonsei University, Seoul 03722, Korea
Selin Kim: Department of Public Health, Graduate School, Yonsei University, Seoul 03722, Korea
Eun-Cheol Park: Institute of Health Services Research, Yonsei University, Seoul 03722, Korea
Sung-In Jang: Institute of Health Services Research, Yonsei University, Seoul 03722, Korea

IJERPH, 2019, vol. 16, issue 20, 1-11

Abstract: Study Objectives: In comparison to other countries, the South Korean population has a short average sleep duration, and studies have suggested that insufficient sleep is a risk factor for suicidal behavior. This study aimed to examine the association of bedtime with suicidal ideation and with suicide planning, respectively, among Korean adolescents. Methods: This study included 48,218 participants from the 2017 Korea Youth Risk Behavior Web-based Survey. Participants were divided into three categories: pre-23:00 bedtime, 23:00–01:30 bedtime, and post-01:30 bedtime. Suicidal ideation and suicide planning were the main dependent variables, and multiple logistic regression analysis was performed to examine the target association. Results: For both male and female respondents, compared to those who had a pre-23:00 bedtime, those whose bedtime was after 01:30 were more likely to have suicidal ideation (post-01:30 bedtime for men: OR = 1.29, 95% CI = 1.16–1.45; for women: OR = 1.32, 95% CI = 1.20–1.44). For suicide planning, the results were also significant for both genders (post-01:30 bedtime for men: OR = 1.41, 95% CI = 1.16–1.70; for women: OR = 1.21, 95% CI = 1.03–1.43). Odds of suicidal ideation were higher for those who had a post-01:30 bedtime on weekdays but not weekends. Conclusions: We found that, among adolescents, going to bed after 01:30 is significantly associated with suicidal ideation and suicide planning, after adjusting for demographic, socioeconomic, and health-related characteristics. Therefore, late bedtime should be the timepoint of a suicide intervention for adolescents, in order to prevent developing suicidal ideations and suicide planning.

Keywords: sleep; bedtime; suicidal ideation; suicide planning (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1660-4601/16/20/3817/pdf (application/pdf)
https://www.mdpi.com/1660-4601/16/20/3817/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jijerp:v:16:y:2019:i:20:p:3817-:d:274884

Access Statistics for this article

IJERPH is currently edited by Ms. Jenna Liu

More articles in IJERPH from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().