Journal Article

Both Weight at Age 20 and Weight Gain Have an Impact on Sleep Disturbances Later in Life: Results of the EpiHealth Study

Gui-Hong Cai, Christer Janson, Jenny Theorell-Haglöw, Christian Benedict, Sölve Elmståhl, Lars Lind and Eva Lindberg

in SLEEP

Published on behalf of American Academy of Sleep Medicine

Volume 41, issue 1 ISSN: 0161-8105
Published online January 2018 | e-ISSN: 1550-9109 | DOI: http://dx.doi.org/10.1093/sleep/zsx176

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  • Neurology
  • Sleep Medicine
  • Clinical Neuroscience
  • Neuroscience

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Abstract

Study Objectives

Obesity is often associated with impaired sleep, whereas the impact of body mass index (BMI) at younger age and previous weight gain on sleep problems remains unknown.

Methods

The present study utilized data from the Swedish EpiHealth cohort study. A total of 15845 participants (45–75 years) filled out an internet-based questionnaire. BMI was calculated from both measured data at study time and self-reported data at age 20 from the questionnaire.

Results

Sleep-related symptoms were most common among obese individuals (BMI > 30 kg/m2). An association between weight gain and sleep problems was found and those with a low BMI at age 20 were most vulnerable to weight gain when it came to risk of sleep problems. Among those who were underweight (BMI < 18.5 kg/m2) at age 20, weight gain (kg/year) was associated with difficulties initiating sleep with an adjusted OR of 2.64 (95% CI: 1.51–4.62) after adjusting for age, sex, smoking, alcohol consumption, physical activity, education, and civil status. The corresponding adjusted OR’s among those who had been normal weight (BMI 18.5–24.99) and overweight (BMI 25–29.99 kg/m2) at age 20 were 1.89 (1.47–2.45) and 1.02 (0.48–2.13), respectively. Also difficulties maintaining sleep and snoring were most strongly related to weight gain among those who were underweight at age 20 with decreasing odds with increasing BMI at that age.

Conclusions

Sleep problems are related to weight gain and obesity. The impact of weight is most pronounced among those who had a low BMI when young.

Keywords: epidemiology; insomnia; obesity; aging; weight gain; EpiHealth study; body mass index (BMI); Epworth Sleepiness Scale (ESS); sleep problems; snoring

Journal Article.  5182 words.  Illustrated.

Subjects: Neurology ; Sleep Medicine ; Clinical Neuroscience ; Neuroscience

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