Korean J Health Promot KJHP Korean Journal of Health Promotion 2234-2141 2093-5676 Korean Society for Health Promotion and Disease Prevention 10.15384/kjhp.2018.18.1.1 Original Article Associations between Sleep Duration and Smoked Cigarettes per Day, Heavy Smoking in Smokers Yu Jae-Geon Kim Chang-Gon Jung Seung-Pil Lee Keun-Mi Department of Family Medicine, Yeungnam University Medical Center, Yeungnam University College of Medicine, Daegu, Korea. Corresponding author: Seung-Pil Jung, MD, PhD. Department of of Family Medicine, Yeungnam University Medical Center, Yeungnam University College of Medicine, 170 Hyeonchung-ro, Nam-gu, Daegu 42415, Korea. Tel: +82-53-620-3182, Fax: +82-53-623-8050, rokanten@outlook.kr 03 2018 31 03 2018 18 1 1 6 08 01 2018 12 03 2018 Copyright © 2018 Korean Society for Health Promotion and Disease Prevention 2018 Korean Society for Health Promotion and Disease Prevention This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Background

This study was performed to evaluate the associations between sleep duration and smoked cigarettes per day, prevalence of heavy smoking.

 Methods

This study was based on the data of 9,893 subjects who are currently smoking, from the 4th to 6th Korea National Health and Nutrition Examination Survey. Based on appropriate sleep duration from National Sleep Foundation, study subjects were categorized into short, appropriate and over sleep group. Multiple regression analysis was performed to evaluate the association between sleep duration and smoked cigarettes per day, prevalence of heavy smoking. Age, gender, household income, education, marital status, occupation, alcohol use, body weight, hypertension, diabetes mellitus, depression, and level of stress were controlled.

 Results

Compared with appropriate sleep group, smoked cigarettes per day and prevalence of heavy smoking were higher in short sleep group, and lower in over sleep group.

 Conclusions

There is association between sleep duration and smoked cigarettes per day, prevalence of heavy smoking.

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Values are presented as mean±standard deviation or number (%).

aCalculated by chi-square test except Age by ANOVA.

 Smoking characteristics of study subjects according to sleep duration

Values are presented as mean±standard deviation or number (%).

aCalculated by ANOVA.

bCalculated by chi-square test.

 Results of multiple logistic regression of heavy smoking according to sleep duration

Abbreviations: OR, odds ratio; CI, confidence interval.

aAdjusted for gender, age, household income, education, marital status, occupation, alcohol use, body weight, hypertension, diabetes mellitus, depression, and level of stress.

bOR and 95% CI were calculated with multiple logistic regression.