The Relationship between Sleep Time and Mental Health Problems According to the Strengths and Difficulties Questionnaire in Children after an Earthquake Disaster: The Fukushima Health Management Survey
A cross-sectional study was performed on the adverse effects of sleep time on the mental health of children after the Great East Japan Earthquake and subsequent nuclear reactor accident in March 2011. The target participants were children aged 4–15 years living inside the government-designated evacu...
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doaj-ebd00826763d48089a02be348a8075392020-11-24T22:56:13ZengMDPI AGInternational Journal of Environmental Research and Public Health1660-46012018-03-0115463310.3390/ijerph15040633ijerph15040633The Relationship between Sleep Time and Mental Health Problems According to the Strengths and Difficulties Questionnaire in Children after an Earthquake Disaster: The Fukushima Health Management SurveyShuntaro Itagaki0Tetsuya Ohira1Masato Nagai2Seiji Yasumura3Masaharu Maeda4Yuriko Suzuki5Hirobumi Mashiko6Tetsuya Shiga7Itaru Miura8Hirooki Yabe9Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Hikarigaoka-1, Fukushima 960-1295, JapanRadiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Hikarigaoka-1, Fukushima 960-1295, JapanRadiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Hikarigaoka-1, Fukushima 960-1295, JapanRadiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Hikarigaoka-1, Fukushima 960-1295, JapanRadiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Hikarigaoka-1, Fukushima 960-1295, JapanRadiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Hikarigaoka-1, Fukushima 960-1295, JapanRadiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Hikarigaoka-1, Fukushima 960-1295, JapanRadiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Hikarigaoka-1, Fukushima 960-1295, JapanRadiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Hikarigaoka-1, Fukushima 960-1295, JapanRadiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Hikarigaoka-1, Fukushima 960-1295, JapanA cross-sectional study was performed on the adverse effects of sleep time on the mental health of children after the Great East Japan Earthquake and subsequent nuclear reactor accident in March 2011. The target participants were children aged 4–15 years living inside the government-designated evacuation zone as of 11 March 2011 (n = 29,585). The participants’ parents/guardians completed the Strengths and Difficulties Questionnaire (SDQ) and sleep time data were obtained from the 2011 Fukushima Health Management Survey. A total of 18,745 valid responses were returned. We excluded questionnaires with incomplete answers leaving 13,272 responses for the final analysis. First, we divided the children into three age groups for analysis. Second, we divided each age group into four or five groups based on sleep time per day. We used SDQ scores ≥16 to indicate a high risk of mental health problems. In the 4–6-year-old group, those with a sleep time of <9 h had a higher risk. In the 7–12-year-old group, those with ≥10 h of sleep time had a higher risk. In the 13–15-year-old group, those with ≥9 h of sleep time had a higher risk. Shorter sleep time was associated with a higher risk of mental health in 4–6-year-olds. On the other hand, oversleeping was associated with a high risk of mental health in 7–15-year-olds.http://www.mdpi.com/1660-4601/15/4/633childrenearthquakemental healthnuclear reactor accidentsleep |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Shuntaro Itagaki Tetsuya Ohira Masato Nagai Seiji Yasumura Masaharu Maeda Yuriko Suzuki Hirobumi Mashiko Tetsuya Shiga Itaru Miura Hirooki Yabe |
spellingShingle |
Shuntaro Itagaki Tetsuya Ohira Masato Nagai Seiji Yasumura Masaharu Maeda Yuriko Suzuki Hirobumi Mashiko Tetsuya Shiga Itaru Miura Hirooki Yabe The Relationship between Sleep Time and Mental Health Problems According to the Strengths and Difficulties Questionnaire in Children after an Earthquake Disaster: The Fukushima Health Management Survey International Journal of Environmental Research and Public Health children earthquake mental health nuclear reactor accident sleep |
author_facet |
Shuntaro Itagaki Tetsuya Ohira Masato Nagai Seiji Yasumura Masaharu Maeda Yuriko Suzuki Hirobumi Mashiko Tetsuya Shiga Itaru Miura Hirooki Yabe |
author_sort |
Shuntaro Itagaki |
title |
The Relationship between Sleep Time and Mental Health Problems According to the Strengths and Difficulties Questionnaire in Children after an Earthquake Disaster: The Fukushima Health Management Survey |
title_short |
The Relationship between Sleep Time and Mental Health Problems According to the Strengths and Difficulties Questionnaire in Children after an Earthquake Disaster: The Fukushima Health Management Survey |
title_full |
The Relationship between Sleep Time and Mental Health Problems According to the Strengths and Difficulties Questionnaire in Children after an Earthquake Disaster: The Fukushima Health Management Survey |
title_fullStr |
The Relationship between Sleep Time and Mental Health Problems According to the Strengths and Difficulties Questionnaire in Children after an Earthquake Disaster: The Fukushima Health Management Survey |
title_full_unstemmed |
The Relationship between Sleep Time and Mental Health Problems According to the Strengths and Difficulties Questionnaire in Children after an Earthquake Disaster: The Fukushima Health Management Survey |
title_sort |
relationship between sleep time and mental health problems according to the strengths and difficulties questionnaire in children after an earthquake disaster: the fukushima health management survey |
publisher |
MDPI AG |
series |
International Journal of Environmental Research and Public Health |
issn |
1660-4601 |
publishDate |
2018-03-01 |
description |
A cross-sectional study was performed on the adverse effects of sleep time on the mental health of children after the Great East Japan Earthquake and subsequent nuclear reactor accident in March 2011. The target participants were children aged 4–15 years living inside the government-designated evacuation zone as of 11 March 2011 (n = 29,585). The participants’ parents/guardians completed the Strengths and Difficulties Questionnaire (SDQ) and sleep time data were obtained from the 2011 Fukushima Health Management Survey. A total of 18,745 valid responses were returned. We excluded questionnaires with incomplete answers leaving 13,272 responses for the final analysis. First, we divided the children into three age groups for analysis. Second, we divided each age group into four or five groups based on sleep time per day. We used SDQ scores ≥16 to indicate a high risk of mental health problems. In the 4–6-year-old group, those with a sleep time of <9 h had a higher risk. In the 7–12-year-old group, those with ≥10 h of sleep time had a higher risk. In the 13–15-year-old group, those with ≥9 h of sleep time had a higher risk. Shorter sleep time was associated with a higher risk of mental health in 4–6-year-olds. On the other hand, oversleeping was associated with a high risk of mental health in 7–15-year-olds. |
topic |
children earthquake mental health nuclear reactor accident sleep |
url |
http://www.mdpi.com/1660-4601/15/4/633 |
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