J Prev Med Public Health.  2014 May;47(3):150-157.

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

• Kim YY
• Kim UN
• Lee JS
• Park JH

Abstract

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: < or =4, 5, 6, 7, 8, 9, and > or =10 hours.
RESULTS
Using 7 hours of sleep as the reference, the adjusted injury risk (odds ratio) for those sleeping a total of < or =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 > or =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.

Keyword

Sleep duration; Wounds and injuries; Community health survey

MeSH Terms

Adult
Age Factors
Aged
Alcohol Drinking
Arthritis/physiopathology
Body Mass Index
Depression/physiopathology
Diabetes Mellitus/physiopathology
Female
*Health Surveys
Humans
Hypertension/physiopathology
Male
Middle Aged
Obesity/physiopathology
Odds Ratio
Questionnaires
Republic of Korea
Risk Factors
Sex Factors
*Sleep
Smoking
Wounds and Injuries/*epidemiology
Young Adult