Effect of socio-economic status on sleep

Won Hee Seo, Jung Hyun Kwon, So Hee Eun, Gunha Kim, Kyungdo Han, Byung Min Choi

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)


Aim: Sufficient sleep is an important factor in physical and mental health. Sleep duration can be affected by socio-economic status (SES). This study aimed to examine the association between sleep duration and SES in Korean adolescents. Methods: This study was conducted with 1608 adolescents aged 12–18 years, based on data from the 2010 to 2012 Korean National Health and Nutrition Examination Survey (KNHANES). Sleep duration was self-reported in hours and three SES indicators were used: household income, basic livelihood security programmes and type of health insurance. Confounding factors in this study were age, mental health and physical activity. Results: Participants’ average age was 15.6 ± 0.05 years and average sleep duration was 7.04 ± 0.05 h. There was a strong association between sleep duration and household income (P < 0.05) rather than other socio-economic indicators. In addition, it showed that sleep duration was significantly associated with age, body mass index (P < 0.05) and low mood is associated with short sleep and long sleep (>9 h/night). We found similar results in both genders, that is, that the highest income group had shorter sleep duration than the lowest income group. Conclusions: This study shows that the SES, particularly household income, is an important factor in short sleep duration in Korean adolescents. Our findings suggest that, in future investigations of the adolescent's sleep problem, attention should be paid to household income.

Original languageEnglish
Pages (from-to)592-597
Number of pages6
JournalJournal of Paediatrics and Child Health
Issue number6
Publication statusPublished - 2017 Jun
Externally publishedYes

Bibliographical note

Funding Information:
This study is supported by a grant from Korea University (Grant No. K1422291).

Publisher Copyright:
© 2017 Paediatrics and Child Health Division (The Royal Australasian College of Physicians)


  • Asia
  • adolescent
  • income
  • sleep
  • socio-economic status

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health


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