Short Sleep Duration is Inversely Associated with the Prevalence of Underweight in a Young Japanese Population

Sho Ishikawa,1 Shinya Furukawa,2 Teruki Miyake,1 Osamu Yoshida,1 Yoshimasa Murakami,1 Ayumi Kanamoto,1 Masumi Miyazaki,1 Akihito Shiomi,1 Hironobu Nakaguchi,3 Hironobu Saneto,1 Kaori Marui,1 Masahito Kokubu,1 Yuki Numata,1 Mitsuhito Koizumi,1 Aki Kato,2 Katsunori Kusumoto,2 Teru Kumagi,4 Bunzo Matsu...

Full description

Saved in:
Bibliographic Details
Main Authors: Ishikawa S, Furukawa S, Miyake T, Yoshida O, Murakami Y, Kanamoto A, Miyazaki M, Shiomi A, Nakaguchi H, Saneto H, Marui K, Kokubu M, Numata Y, Koizumi M, Kato A, Kusumoto K, Kumagi T, Matsuura B, Hiasa Y
Format: Article
Language:English
Published: Dove Medical Press 2025-06-01
Series:Nature and Science of Sleep
Subjects:
Online Access:https://www.dovepress.com/short-sleep-duration-is-inversely-associated-with-the-prevalence-of-un-peer-reviewed-fulltext-article-NSS
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1849417883194490880
author Ishikawa S
Furukawa S
Miyake T
Yoshida O
Murakami Y
Kanamoto A
Miyazaki M
Shiomi A
Nakaguchi H
Saneto H
Marui K
Kokubu M
Numata Y
Koizumi M
Kato A
Kusumoto K
Kumagi T
Matsuura B
Hiasa Y
author_facet Ishikawa S
Furukawa S
Miyake T
Yoshida O
Murakami Y
Kanamoto A
Miyazaki M
Shiomi A
Nakaguchi H
Saneto H
Marui K
Kokubu M
Numata Y
Koizumi M
Kato A
Kusumoto K
Kumagi T
Matsuura B
Hiasa Y
author_sort Ishikawa S
collection DOAJ
description Sho Ishikawa,1 Shinya Furukawa,2 Teruki Miyake,1 Osamu Yoshida,1 Yoshimasa Murakami,1 Ayumi Kanamoto,1 Masumi Miyazaki,1 Akihito Shiomi,1 Hironobu Nakaguchi,3 Hironobu Saneto,1 Kaori Marui,1 Masahito Kokubu,1 Yuki Numata,1 Mitsuhito Koizumi,1 Aki Kato,2 Katsunori Kusumoto,2 Teru Kumagi,4 Bunzo Matsuura,3 Yoichi Hiasa1 1Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan; 2Health Services Center, Ehime University, Matsuyama, Ehime, Japan; 3Department of Lifestyle-related Medicine and Endocrinology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan; 4Post Graduate Medical Education Center, Ehime University Hospital, Toon, Ehime, JapanCorrespondence: Shinya Furukawa, Health Services Center, Ehime University, Bunkyo, Matsuyama, Ehime, 790-8577, Japan, Tel +81-89-927-9198, Fax +81-89-927-9196, Email furukawa.shinya.mf@ehime-u.ac.jpStudy Objectives: Many studies have shown that sleep disorders including short sleep duration are associated with obesity. However, evidence regarding the association between sleep duration and underweight is limited and inconsistent. This study investigated the relationship between sleep duration and body mass index (BMI), focusing on the prevalence of underweight and obesity in a young Japanese population.Methods: We enrolled 12,496 students at Ehime University between April 2015 and May 2017. Information on sleep duration, sleep disorders, alcohol consumption, smoking, and exercise habits were collected using self-reported questionnaires. Logistic regression analysis was used to estimate crude odds ratios (ORs) and 95% confidence intervals (CIs) for the association between sleep duration and BMI, using 7–< 8 hours as the reference. Age, sex, drinking habits, smoking, exercise habits, and sleep disorders were considered confounding factors.Results: The prevalences of underweight (BMI < 18.5) and obesity (BMI ≥ 25) were 14.3% and 10.5%, respectively. Short sleep durations remained significantly positively associated with obesity (6–< 7 h: OR 1.19, 95% CI: 1.03– 1.37 and 9 h or more OR 0.74, 95% CI: 0.56– 0.97; p for trend = 0.001). Longer sleep duration remained significantly positively associated with underweight (6–< 7 h: OR 0.86, 95% CI: 0.76– 0.99; 8–< 9 h: OR 1.15, 95% CI: 1.01– 1.31; and 9 h or more: OR 1.40, 95% CI: 1.16– 1.69; p for trend = 0.001). In men but not women, sleep duration was independently inversely associated with obesity (9 hours or more OR: 0.70; 95% CI: 0.50– 0.96; p = 0.003). Positive association between sleep duration (9 hours or more) and underweight was found (men OR: 1.47; 95% CI: 1.12– 1.92; p = 0.001, and women OR: 1.37; 95% CI: 1.04– 1.79; p = 0.001).Conclusion: Sleep duration was significantly positively associated with the underweight and inversely associated with obesity in the young Japanese population.Plain Language Summary: Numerous studies have examined the relationship between sleep duration and obesity; however, few have focused on sleep duration and underweight. The prevalence of obesity in Japan is lower compared to Western countries, while the increasing rate of underweight among young individuals presents a significant public health concern. This cross-sectional study among Japanese university students demonstrates a positive association between sleep duration and underweight. Our findings suggest that sleep may play a crucial role in interventions aimed at addressing underweight.Keywords: sleep duration, body mass index, obesity, underweight
format Article
id doaj-art-d6b935fe7ded4e03826e88d0b8724f5f
institution Kabale University
issn 1179-1608
language English
publishDate 2025-06-01
publisher Dove Medical Press
record_format Article
series Nature and Science of Sleep
spelling doaj-art-d6b935fe7ded4e03826e88d0b8724f5f2025-08-20T03:32:36ZengDove Medical PressNature and Science of Sleep1179-16082025-06-01Volume 17Issue 114591466104119Short Sleep Duration is Inversely Associated with the Prevalence of Underweight in a Young Japanese PopulationIshikawa SFurukawa S0Miyake TYoshida OMurakami YKanamoto AMiyazaki MShiomi ANakaguchi HSaneto HMarui KKokubu MNumata YKoizumi MKato AKusumoto KKumagi T1Matsuura BHiasa Y2Health Services CenterGastroenterology & MetabologyDepartment of Gastroenterology and MetabologySho Ishikawa,1 Shinya Furukawa,2 Teruki Miyake,1 Osamu Yoshida,1 Yoshimasa Murakami,1 Ayumi Kanamoto,1 Masumi Miyazaki,1 Akihito Shiomi,1 Hironobu Nakaguchi,3 Hironobu Saneto,1 Kaori Marui,1 Masahito Kokubu,1 Yuki Numata,1 Mitsuhito Koizumi,1 Aki Kato,2 Katsunori Kusumoto,2 Teru Kumagi,4 Bunzo Matsuura,3 Yoichi Hiasa1 1Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan; 2Health Services Center, Ehime University, Matsuyama, Ehime, Japan; 3Department of Lifestyle-related Medicine and Endocrinology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan; 4Post Graduate Medical Education Center, Ehime University Hospital, Toon, Ehime, JapanCorrespondence: Shinya Furukawa, Health Services Center, Ehime University, Bunkyo, Matsuyama, Ehime, 790-8577, Japan, Tel +81-89-927-9198, Fax +81-89-927-9196, Email furukawa.shinya.mf@ehime-u.ac.jpStudy Objectives: Many studies have shown that sleep disorders including short sleep duration are associated with obesity. However, evidence regarding the association between sleep duration and underweight is limited and inconsistent. This study investigated the relationship between sleep duration and body mass index (BMI), focusing on the prevalence of underweight and obesity in a young Japanese population.Methods: We enrolled 12,496 students at Ehime University between April 2015 and May 2017. Information on sleep duration, sleep disorders, alcohol consumption, smoking, and exercise habits were collected using self-reported questionnaires. Logistic regression analysis was used to estimate crude odds ratios (ORs) and 95% confidence intervals (CIs) for the association between sleep duration and BMI, using 7–< 8 hours as the reference. Age, sex, drinking habits, smoking, exercise habits, and sleep disorders were considered confounding factors.Results: The prevalences of underweight (BMI < 18.5) and obesity (BMI ≥ 25) were 14.3% and 10.5%, respectively. Short sleep durations remained significantly positively associated with obesity (6–< 7 h: OR 1.19, 95% CI: 1.03– 1.37 and 9 h or more OR 0.74, 95% CI: 0.56– 0.97; p for trend = 0.001). Longer sleep duration remained significantly positively associated with underweight (6–< 7 h: OR 0.86, 95% CI: 0.76– 0.99; 8–< 9 h: OR 1.15, 95% CI: 1.01– 1.31; and 9 h or more: OR 1.40, 95% CI: 1.16– 1.69; p for trend = 0.001). In men but not women, sleep duration was independently inversely associated with obesity (9 hours or more OR: 0.70; 95% CI: 0.50– 0.96; p = 0.003). Positive association between sleep duration (9 hours or more) and underweight was found (men OR: 1.47; 95% CI: 1.12– 1.92; p = 0.001, and women OR: 1.37; 95% CI: 1.04– 1.79; p = 0.001).Conclusion: Sleep duration was significantly positively associated with the underweight and inversely associated with obesity in the young Japanese population.Plain Language Summary: Numerous studies have examined the relationship between sleep duration and obesity; however, few have focused on sleep duration and underweight. The prevalence of obesity in Japan is lower compared to Western countries, while the increasing rate of underweight among young individuals presents a significant public health concern. This cross-sectional study among Japanese university students demonstrates a positive association between sleep duration and underweight. Our findings suggest that sleep may play a crucial role in interventions aimed at addressing underweight.Keywords: sleep duration, body mass index, obesity, underweighthttps://www.dovepress.com/short-sleep-duration-is-inversely-associated-with-the-prevalence-of-un-peer-reviewed-fulltext-article-NSSsleep durationbody mass indexobesityunderweight
spellingShingle Ishikawa S
Furukawa S
Miyake T
Yoshida O
Murakami Y
Kanamoto A
Miyazaki M
Shiomi A
Nakaguchi H
Saneto H
Marui K
Kokubu M
Numata Y
Koizumi M
Kato A
Kusumoto K
Kumagi T
Matsuura B
Hiasa Y
Short Sleep Duration is Inversely Associated with the Prevalence of Underweight in a Young Japanese Population
Nature and Science of Sleep
sleep duration
body mass index
obesity
underweight
title Short Sleep Duration is Inversely Associated with the Prevalence of Underweight in a Young Japanese Population
title_full Short Sleep Duration is Inversely Associated with the Prevalence of Underweight in a Young Japanese Population
title_fullStr Short Sleep Duration is Inversely Associated with the Prevalence of Underweight in a Young Japanese Population
title_full_unstemmed Short Sleep Duration is Inversely Associated with the Prevalence of Underweight in a Young Japanese Population
title_short Short Sleep Duration is Inversely Associated with the Prevalence of Underweight in a Young Japanese Population
title_sort short sleep duration is inversely associated with the prevalence of underweight in a young japanese population
topic sleep duration
body mass index
obesity
underweight
url https://www.dovepress.com/short-sleep-duration-is-inversely-associated-with-the-prevalence-of-un-peer-reviewed-fulltext-article-NSS
work_keys_str_mv AT ishikawas shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation
AT furukawas shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation
AT miyaket shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation
AT yoshidao shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation
AT murakamiy shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation
AT kanamotoa shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation
AT miyazakim shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation
AT shiomia shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation
AT nakaguchih shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation
AT sanetoh shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation
AT maruik shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation
AT kokubum shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation
AT numatay shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation
AT koizumim shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation
AT katoa shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation
AT kusumotok shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation
AT kumagit shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation
AT matsuurab shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation
AT hiasay shortsleepdurationisinverselyassociatedwiththeprevalenceofunderweightinayoungjapanesepopulation