한국아동·청소년패널조사 Ⅷ : 데이터분석보고서 - 청소년 수면시간의 긍정적 효과 -

정은진,하형석,고강혁,정윤미 한국청소년정책연구원 2017 한국청소년정책연구원 연구보고서 Vol.- No.-

This study attempted to unveil the positive effects of sleep duration on youth. Specifically, the goal was to figure out what effects adolescents’ sleep duration would have on body mass index (BMI), learning habit control and satisfaction with school grades and life. First, to examine relationship between sleep duration and BMI, 4th and 7th grade panels were chosen, and panel fixed-effects (within) IV regression model was applied. Second, the 4th grade panel was used to examine sleep duration-learning habit control, sleep duration-school grade satisfaction and sleep duration-life satisfaction relationships, using the autoregressive cross-lagged model. In addition, the mediating effects were assessed. Then, the results found the followings: First, adolescents’ sleep duration had a significant effect on BMI. In particular, as sleep duration increased, BMI fell. Decrease in BMI can be understood as the reduction of the probability of being overweight or obese. In other words, as they sufficiently sleep, the occurrence of obesity declines. Second, adolescents’ sleep duration had a positive influence on their control on learning habits with statistical significance. This finding was confirmed during the 5-7th years (8th-10th grade) in the 4th grade panel. Third, sleep duration had a positive effect on adolescents’ satisfaction with their school grades with statistical significance. This result was confirmed during the 2-4th and 4-7th years in the 4th grade panel with statistical significance. Fourth, adolescents’ sleep duration had a positive influence on their life satisfaction with statistical significance, which was confirmed during the 4-7th years in the 4th grade panel. Fifth, their sleep duration had a significant influence (5-7th years) on their school grades with their control on learning habits as a mediator. Furthermore, sleep duration had an effect (5-7th years) on their life satisfaction based on their learning habit control with statistical significance. In sum, adolescents’ sleep duration has a significant influence on their physical conditions, school grades and even their mental health. Based on these results, this study describes its academic and theoretical meaning and proposes the policies which can guarantee adolescents’ sleep duration. For this, the policies which can be implemented at home and school as well as in the country are stated in detail, using nudge theory (smooth intervention, encouraging others to make a choice). This study also mentioned the parts in which legal amendment is needed.

Patient Health Questionnaire-9, Body Mass Index, Household Income According to Sleep Duration: Findings From a Community Health Survey

Lee Jihyung,Um Yoo Hyun,Jeong Jong-Hyun,Seo Ho-Jun,Kim Young-Chan,Yoon Sung Hoon,김석영,Kim Tae Won,Hong Seung-Chul 대한수면학회 2023 sleep medicine research Vol.14 No.1

Background and Objective Research on the relationship between sleep duration and Patient Health Questionnaire-9 (PHQ-9), body mass index (BMI), and income in South Korea was scarce. This study aimed to investigate the relationship between sleep duration and the PHQ-9, BMI, and household income.Methods We used data from the Korean Community Health Survey (KCHS) conducted by the Korean Center for Disease Control and Prevention in 2018 which included a total of 228340 participants from across the country. We divided the participants into four groups based on their sleep duration and used one-way analysis of variance (ANOVA) to compare the mean values of PHQ-9, BMI, and household income among the groups.Results A total of 227899 respondents were included in the study. Based on a one-way ANOVA, the mean PHQ-9 score tended to increase as sleep duration decreased. However, the group with a sleep duration of 9 hours or more had an exceptionally higher mean PHQ-9 score than the group with a sleep duration of 7 to 9 hours. The BMI score generally decreased as the sleep duration increased. Additionally, the group with a sleep duration of 5 to 7 hours and 7 to 9 hours had higher household income than the group with a sleep duration of 5 hours or less or 9 hours or more.Conclusions This study demonstrated the association between sleep duration and PHQ-9, BMI, and household income. Sleep duration was found to be a factor influencing PHQ-9, BMI, and household income.

대학생의 수면시간이 스트레스 및 우울에 미치는 영향

김민호 ( Min-ho Kim ),박성호 ( Sung-ho Park ) 대한통합의학회 2021 대한통합의학회지 Vol.9 No.4

Purpose : The purpose of this study is to investigate the effects of sleep duration on stress and depression in college students. The results obtained will be used as a foundational framework for fostering a healthy sleep culture among college students and for formulating measures to improve the quality of their sleep. Ultimately, we intend to produce a publicity and educational material. Methods : For this study, a survey involving 100 college students was conducted, after which data based on a final total of 95 respondents were analyzed. The information on stress and depression were first analyzed in terms of general characteristics and then organized based on the data collected to investigate the effects of sleep duration on stress and depression. The participants were divided into the following groups: “less than 6 hours,” “6 to 7 hours,” and “7 to 8 hours.” BEPSI-K (Brief encounter psychosocial instrument-Korean) was used for stress evaluation, while K-CESD-R (Korean version of center for epidemiologic studies depression scale-revised) was utilized for depression evaluation. Results : First, according to sleep duration, the BEPSI-K scores showed a statistically significant difference in each group (p<.01). In the post-hoc test, there was a difference among the “less than 6 hours” group, the “7 to 8 hours” group. A statistically significant difference was noted (p<.01). In addition, sleep duration had a statistically significant effect on the negative (-) direction of the BEPSI-K (p<.01). Second, the K-CESD-R score according to sleep duration showed a statistically significant difference in each group (p<.01). Notably, in the post-hoc test, the “less than 6 hours” group differed from the “6 to 7 hours” group, “7 to 8 hours” group. A statistically significant difference was noted (p<.01). In addition, sleep duration had a statistically significant effect on the negative (-) direction of the K-CESD-R (p<.01). Third, for the correlation between sleep duration and stress and depression, a negative (-) correlation was found between sleep duration and BEPSI-K and K-CESD-R. Meanwhile, a positive (+) correlation was found between BEPSI-K and K-CESD-R. Conclusion : Based on the findings of this study, the sleep duration of college students has an effect on stress and depression. The results of this study can be used as a foundational framework in formulating a plan for improving the quality of sleep of college students.

한국 노인에서 악력과 수면시간과의 관련성

이한나,심경원,이상화,이홍수,조영경,변아리 대한가정의학회 2021 Korean Journal of Family Practice Vol.11 No.3

Background: In an aged society, studies on sleep duration and hand grip strength are limited. This study aimed to evaluate the associations of sleep duration and hand grip strength among a large sample of Korean older adults. Methods: This study is based on data from 2014–2015 from the Sixth Korea National Health and Nutrition Examination Survey. The total number of participants who were over the age of 65 years was 2,104. Participants were classified into four groups according to self-reported sleep duration. Muscle power was estimated using hand grip strength. The association between sleep duration and hand grip strength was analyzed using ANOVA and ANCOVA. Results: There was a statistically significant correlation between sleep duration and hand grip strength; After controlling for covariates, a sleep duration of shorter than 4 hours (estimated mean [95% confidence interval, CI]: 25.91±0.44) was associated with a weaker dominant hand grip strength than an average sleep duration of 7–8 hours (estimated mean [95% CI]: 27.20±0.25) (P=0.027). However, when stratified by sex, only female with a sleep duration of longer than 9 hours (estimated mean [95% CI]: 18.88±0.41) had a significantly weaker non-dominant hand grip strength than those with an average sleep duration of 7–8 hours (estimated mean [95% CI]: 19.85±0.24). Conclusion: An inappropriate sleep duration in older adults was associated with a lower hand grip strength. This finding suggests that decreased muscle power may mediate the relationship between short sleep duration and adverse health outcomes. 연구배경: 한국에서 수면 시간과 악력에 대한 연구는 제한적이다. 본 연구는 노인 인구를 대상으로 수면시간과 악력과의 연관성을 평 가하고자 하였다. 방법: 국민건강영양조사 제6기(2014년–2015년) 자료에서 65세 이상 노인 2,104명을 대상으로 하였다. 자가 보고된 수면 시간을 통해 참 여자들을 ≤4 hours, 5–6 hours, 7–8 hours, ≥9 hours 4개의 그룹으로 나누었다. 사회경제적 정보, 건강행태, 만성질환, 정신건강 상태를 고려하여 카이제곱 검정을 실시하였다. 각각의 수면시간이 미치는 악력과의 관련성을 확인하기 위해 유의한 변수를 보정하여 로지스 틱 회귀분석을 실시하였다. 근력은 악력을 사용하여 추정되었다. 결과: 총 2,104명의 65세 이상의 노인 인구가 연구에 참여하였다. 이 중 219명(10.5%)이 4시간 미만의 수면시간을 가졌다. 혼란 변수를 보 정 후 우세수 악력의 경우 4시간 이하(25.91±0.44)의 수면시간군이 7–8시간(27.20±0.25)의 평균 수면시간군보다 악력이 낮았다(P<0.05). 성별로 계층화한 경우 짧은 수면시간과 약한 악력을 보였으나 9시간 이상의 긴 수면시간군의 악력이(18.88±0.41) 유의하게 낮았다. 결론: 65세 이상 노인에서 짧은 수면시간의 경우 약한 악력을 보였다. 이를 통해 근력 감소가 짧은 수면시간과 부정적인 건강 영향과의 관계를 중재할 수 있음을 시사한다.

한국 성인의 수면시간과 체성분 인자와의 연관성

김은영(Eun Young Kim),최윤선(Youn Seon Choi),김선미(Seon Mee Kim),최선영(Sun Young Choi),김은혜(Eun Hye Kim),김정은(Jung Eun Kim),김이연(E Yeon Kim),정재훈(Jae Hoon Jeong),진로사(Rosa Jin),정상아(Sang Ah Jung) 대한임상노인의학회 2014 대한임상노인의학회지 Vol.15 No.1

연구배경: 수면부족은 당 대사조절 등 체내 생리적 시스템에 영향을 주면서 비만의 유병률을 높일 것으로 생각되는데, 국내외적으로 수면시간과 비만과의 연관성을 다룬 연구는 많이 있으나 체지방량의 분포 등 체성분과의 연관성을 다룬 연구는 거의 없는 실정 이다. 이에 본 논문에서는 우리나라 성인의 수면시간과 체성분과의 연관성을 확인하고자 했다. 방법: 제 4기(2008∼2009)와 제 5기(2010) 국민건강영양조사 자료를 분석하였으며 고령, 미측, 갑상샘 질환, 신부전, 임신을 제외한 총 9880명을 대상으로 하였다. 체성분인자로 BMI, 허리둘레, 총체지방률, 몸통체지방률, 제지방률, 몸통제지방률, 근량을 사용하였고, 수면시간에 따른 체성분 분석의 연관관계를 보기 위해 선형 회귀분석 및 로지스틱 회귀분석을 이용하였으며, 나이, 흡연, 운동, 음주 등의 교란변수를 보정하여 다중 로지스틱 회귀분석을 실시하였다. 결과: 남성과 여성 모두 BMI, 허리둘레, 몸통체지방률, 근량에서 수면시간과 유의한 음의 상관관계를 보였으며, 비만 관련 위험도를 알아보기 위하여 BMI≥25 kg/㎡, 허리둘레(남자≥90 cm, 여자≥85 cm), 체지방률과 제지방률, 근량의 상위 25%값의 비율에 대해 다중 로지스틱 회귀분석을 실시하였을 때는, 남성에서만 유의한 교차비를 보였다. 남성에서 수면시간이 1시간 증가할수록 BMI 25이상의 위험은 0.89배, 허리둘레 90 cm이상 위험은 0.90배, 몸통 체지방률과 근량도 각각 0.93배, 0.89배 감소하였다. 결론: 우리나라 성인의 수면시간은 체성분인자 중 BMI, 허리둘레, 몸통 체지방률, 몸통 제지방률, 근량과 유의한 연관성이 있었으며, 남성에서는 수면시간이 부족할수록 BMI 25 kg/㎡ 이상, 허리둘레 90 cm이상 될 위험이 증가하고, 몸통체지방률이 증가할 위험도 높은 것으로 나타났다. 이러한 결과는 수면부족이 몸통에 체지방량의 분포를 증가시켜 중심비만을 야기시키는 원인이 될 수 있음을 뒷받침하며, 적절한 수면관리를 통해 이를 예방할 수 있을 것으로 사료되므로 이를 지키기 위한 노력이 필요하겠다. Background: Despite the large number of epidemiological studies linking obesity and short sleep duration, there is paucity of data carefully examining the relationship between body composition and sleep duration. So, through national undertaking Korea National Health and Nutrition Examination Surveys (KNHANES), we examined the relationship between sleep duration and BMI, waist circumference, and percent body fat in Korean adults. Methods: From the data of KNHANES in the year of 2008∼2010, over 19 years old 4337 men and 5543 women, relationship between sleep duration and indices of body composition was examined. Anthropometric and dual-energy X-ray absorptiometry (DXA) measures of body composition were used. Sleep duration was measured using information obtained from self-reported questionnaires. Results: The study results revealed a negative association between sleep duration and most of body composition variables - body mass index, waist circumference, truncal fat percentage, muscle mass - and positive association with truncal lean mass percentage. In men, increasing sleep duration 1 hour, prevalence of obesity (BMI≥25 kg/㎡) is decreasing (OR=0.89, CI:0.837-0.939), risk of waist circumference over 90 cm is decreasing (OR=0.90, CI:0.851-0.966), truncal fat percentage (OR=0.93, CI:0.869-0.992) and muscle mass (OR=0.89, CI: 0.835-0.949) are also decreasing. Conclusion: Our results are consistent with previous findings that sleep duration is associated with obesity. However, the relationship between sleep duration and body composition may be stronger in men than in women. Short sleep duration was associated with increased truncal fat. And it supports that short sleep duration may increase prevalence of central obesity in Korean men.

인사·조직 연구를 위한 수면 측정도구 실증 연구

하성욱(Ha, Seongwook) 한국인사조직학회 2019 한국인사ㆍ조직학회 발표논문집 Vol.2019 No.2

본 연구는 인사·조직 분야의 실증연구에 적합한 수면 측정도구를 제시하기 위해 주간과 야간학생이 동일한 비율로 있는 한성대학교 경영학부 학생들 237명을 대상으로 실증분석을 진행하였다. 피츠버그 의대에서 개발한 PSQI는 의학 및 임상적 근거가 있지만, 본 연구의 실증분석결과 Cronbach’s α가 0.5 정도로 낮았고 요인분석결과도 2개 이상의 차원을 도출하여 신뢰성과 타당성에 한계를 가진다. PSQI는 처음 제시된 것과 다르게 단일 차원으로 보기 어렵다. 본 연구의 요인구조는 기존 PSQI 후속연구와 비교하여 상당한 차이를 가진다. 이것은 PSQI가 수면질환자와 일반인을 구별하기 위해 개발되었는데 본 연구는 일반인을 대상으로 하였기 때문일 수 있다. 기존연구들은 수면시간과 수면질로 구분하여 측정할 때 각각 3가지 지표들을 사용하였다. PSQI 수면시간, PSD 수면시간, 주관적 수면시간, 주관적 수면질, 불면증 척도, 그리고 PSQI 질적 항목이다. 수면시간의 3가지 지표들과 주관적 수면질은 단일 항목이고, 다항목인 불면증 척도와 PSQI 질적 항목은 Cronbach’s α가 0.7 정도로 높은 편이다. 요인분석 결과에서 불면증 척도는 단일 차원이었지만, PSQI 질적 항목은 다시 2개 차원으로 구분되었다. PSQI 질적 항목은 PSQI의 7개 차원 중 수면시간과 수면효율성을 제외한 5개 차원을 Likert 척도로 측정한 것인데 하성욱(2016)과 다르게 수면질 측정도구로 바람직하지 않았다. 수면시간의 3가지 지표들, 주관적 수면질과 불면증 척도를 포함하는 2차 요인분석은 수면시간 차원과 수면질 차원으로 뚜렷하게 구분한다. 다만 주관적 수면시간은 상대적으로 수면질 차원과도 약간의 요인적재량을 보이는데, 대상자가 수면시간을 주관적으로 응답하는 과정에서 수면의 질적 측면을 고려했을 수 있다. 본 연구는 인사·조직 분야의 연구가 수면 측정도구로 PSQI 수면시간 혹은 PSD 수면시간, 그리고 주관적 수면질 혹은 불면증 척도의 조합을 사용할 것을 제안한다. 나아가 이 지표들이 수면의 결과변수인 자아고갈에 미치는 영향, 그리고 원인변수인 카페인, 술과 담배 섭취가 수면에 미치는 영향을 분석하여 이들의 기준관련 타당성을 확인하였다. 이를 바탕으로 본 연구는 PSD 수면시간과 불면증 척도를 최적의 수면측정도구로 제안한다. This study empirically examined the various measures of sleep for human resources and organization research with the sample of 237 day-shift and night-shift undergraduate students in the Hansung University. The data was gathered during two semesters. In each semester, respondents answers two questionnaires with an 1-month interval. Although the PSQI had been developed and selected on clinical grounds of medical doctors in the University of Pittsburgh, the Cronbach’s α of PSQI 7 dimensions from the data was the low level around 0.5, and the number of factor and the factor structure extracted from the data were inconsistent and unstable. They were also different from the results of prior studies, such as Guo et al.(2016), Sohn et al.(2012), and Buysse et al.(1989). Prior studies of this area had been adopted various measures of sleep duration and sleep quality. The measures of sleep duration include the PSQI sleep duration, the PSD sleep duration, and the subjective sleep duration. The measures of sleep quality include the subjective sleep quality, the insomnia scale, and the PSQI qualitative dimension. The PSQI qualitative dimension was not preferred for it had no clinical grounds and an inconsistent factor structure from the data. The subjective sleep duration was not preferred for the answers of respondents might be affected by their sleep quality. This study suggests a combination of the PSQI sleep duration or the PSD sleep duration, and the subjective sleep quality or the insomnia scale as good measures of sleep. Furthermore, the best measures of sleep might be the PSD sleep duration and the insomnia scale, because the PSD sleep duration explained the ego depletion on the regression models better than the PSQI sleep duration did, and the subjective sleep quality had only one item impossible to analyze the reliability and validity of the measure.

4세 때의 전자매체 놀이시간과 초등학교 3학년 때의 또래애착 간의 관계에서 수면시간의 매개효과: 잠재성장모형을 이용한 종단연구

박윤현(Pack, Yun Hyun),박지은(Park, Ji Eun),김대웅(Kim, Daewoong),서지연(Sheo, Jiyeon),최나야(Choi, Na Ya) 한국열린유아교육학회 2019 열린유아교육연구 Vol.24 No.3

이 연구의 목적은 아동 수면시간의 변화 양상을 살펴보고, 4세 유아의 전자매체 놀이시간, 아동 수면시간 변화, 초등학교 3학년 또래애착의 구조적 관계를 살펴보는 것이다. 이를 위하여 한국아동패널 6차년도부터 10차년도까지의 자료를 이용하여, 아동 수면시간의 변화가 비선형으로 변화하는지 확인하고, 구조방정식 모형의 적합도를 살펴보았다. 연구대상은 1,435명이다. 분석결과 첫째, 4세 유아의 하루 평균 총 수면시간은 9.9시간이며, 연령이 증가함에 따라 수면시간이 감소하였다. 둘째, 4세 유아의 전자매체 놀이시간이 아동수면시간 초기치 및 이차변화율에 미치는 영향이 유의하였다. 전자매체 놀이시간이 증가할수록 하루 평균 총 수면시간이 감소하며, 연령이 증가함에 따라 수면시간 감소폭이 더 큰 것으로 나타났다. 셋째, 아동 수면시간 선형변화율 및 이차변화율이 초등학교 3학년 또래애착에 미치는 영향이 유의하였다. 수면시간이 더 많은 아동이 또래애착을 더 잘 맺는 것으로 나타났다. 이러한 결과는 아동의 사회적 관계인 또래애착에 대해 비사회적 측면인 수면이 영향을 미칠 수 있음을 의미하며, 사회 · 정서 발달 측면에서 아동의 생활습관이 고려되어야 함을 의미한다. The purpose of this study is to investigate the pattern of change in children’s sleep duration along with the structural relationship among electronic media usage time of four-year-olds, sleep duration and third-grader’s peer attachment. For this purpose, 6<SUP>th</SUP> year, 7<SUP>th</SUP> year, 8<SUP>th</SUP> year, 9<SUP>th</SUP> year, and 10<SUP>th</SUP> year data of the Korean Children and Youth Survey were used to examine whether children’s sleep duration changes in a nonlinear pattern and the suitability of structural equation model. Subjects include 1435 children. Results reveal several conclusions. First, average sleep duration of four-year- olds per day was 9.9 hours and sleep duration decreased with age. Second, electronic media usage time of four-year-olds had a significant effect on initial sleep duration and secondary changes in sleep duration. As electronic media usage time increased, the average sleep duration per day decreased and the ratio of decrease in sleep duration was greater with age. Third, both linear strain changes and secondary changes in sleep duration had a significant effect on third-grader’s peer attachment. Children with longer sleep duration formed better peer attachment. Overall findings suggest that nonsocial factors such as sleep duration can affect children’s peer attachment and hence, diverse aspects of children’s lifestyle are to be considered for their healthy socio-emotional development.

The Effect of Sleep Duration on the Risk of Unintentional Injury in Korean Adults

김연용,박종헌,김은나,이진석 대한예방의학회 2014 Journal of Preventive Medicine and Public Health Vol.47 No.3

Objectives: The decrease or increase in sleep duration has recently been recognized as a risk factor for several diseases, including hypertension and obesity. Many studies have explored the relationship of decreased sleep durations and injuries, but few have examined the relationship between increased sleep duration and injury. The objective of this research is to identify the risk for injury associated with both decreased and increased sleep durations. Methods: Data from the 2010 Community Health Survey were used in this study. We conducted logistic regression with average sleep duration as the independent variable, injury as a dependent variable, and controlling for age, sex, occupation, education, region (cities and provinces), smoking, alcohol use, body mass index, hypertension, diabetes, arthritis, and depression. Seven categories of sleep duration were established: ≤4, 5, 6, 7, 8, 9, and ≥10 hours. Results: Using 7 hours of sleep as the reference, the adjusted injury risk (odds ratio) for those sleeping a total of ≤4 h/d was 1.53; 1.28 for 5 hours, for 1.11 for 6 hours, 0.98 for 8 hours, 1.12 for 9 hours, and 1.48 for ≥10 hours. The difference in risk was statistically significant for each category except for the 8 and 9 hours. In this study, risk increased as the sleep duration decreased or increased, except for the 8 and 9 hours. Conclusions: This research found that either a decrease or increase in sleep duration was associated with an increased risk for injury. The concept of proper sleep duration can be evaluated by its associated injury risk.

Factors related with quality on sleep of daytime workers

Bu-il Kim,Seong-yong Yoon,Jin-seok Kim,Kuck-Hyeun Woo,Seong-yong Cho,Ho Lee,Jong-min An 대한직업환경의학회 2018 대한직업환경의학회지 Vol.30 No.-

Background: This study was conducted to identify the sleep status of daytime workers who do not work in shifts. This study analyzed factors affecting sleep duration and sleep quality. Methods: This study was conducted on 1171 daytime workers at a manufacturing workshop. We used a selfadministered questionnaire to investigate demographic variables, work type, working period, musculoskeletal symptoms and the Pittsburgh Sleep Quality Index to assess sleep. Regular health checkup was conducted for the worker’s clinical examination. Results: The mean sleep duration was 6.36 h and the mean score on the Pittsburgh Sleep Quality Index was 4.46. Work type and obesity were related to sleep duration. Age, obesity and musculoskeletal pain were significantly related to sleep quality. The prevalence ratio of researcher group for short sleep duration was 1.27 (95% confidence interval: 1.02–1.58). The prevalence ratio of those aged 50 years and over was 0.47 (0.25–0.91) and of those in their 40s was 0.56 (0.35–0.91) for poor sleep quality compared to those in their 20s. The prevalence ratio of the obesity group for poor sleep quality was 1.53 (1.10–2.12). The prevalence ratio of musculoskeletal pain group for poor sleep quality was 1.92 (1.29–2.84). Conclusions: Age, obesity and musculoskeletal pain were factors affecting the poor quality on sleep of daytime workers. In addition, work type related to short sleep duration.

Associations between Self-Reported Sleep Quality and Duration and Dietary Consumptions, Psychological Symptoms, and Obesity in Korean Adults

Bori Kang,Miae Doo,Yangha Kim 한국식품영양과학회 2017 Preventive Nutrition and Food Science Vol.22 No.4

Sleep pattern disruptions have been reported to be associated with an increased risk of obesity. This study was performed to investigate the association between sleep quality and sleep duration with dietary consumption, psychological factors, and obesity in Korean adults. A total of 288 Korean men and women who visited a public health center were included in this study. Data on general characteristics, health-related habits, psychological symptoms, dietary intake, and sleep patterns (including quality and duration) were collected using self-report questionnaires. Approximately half of the included Korean adults experienced sleep of low quality and short duration. Subjects who reported short sleep durations had a significantly higher weight (P=0.015), body mass index (P<0.001), and prevalence of obesity (P=0.012) than those reporting proper sleep durations. After adjustment for covariates, subjects reporting short sleep durations consumed more dietary carbohydrates (P=0.043) and higher levels of perceived stress (P=0.001), depression (P=0.001), and anxiety (P<0.001) than subjects reporting proper sleep durations. However, obesity-related variables, dietary intake and psychosocial symptoms did not differ significantly by reported sleep quality. The results of this study demonstrated that sleep duration but not sleep quality was associated with dietary macronutrient intake and psychological symptoms, which might affect obesity.