The prevalence of common sleep disorders in young adults: a descriptive population-based study

Nigel McArdle; Sarah V Ward; Romola S Bucks; Kathleen Maddison; Anne Smith; Rae-Chi Huang; Craig E Pennell; David R Hillman; Peter R Eastwood

doi:10.1093/sleep/zsaa072

The prevalence of common sleep disorders in young adults: a descriptive population-based study

Sleep. 2020 Oct 13;43(10):zsaa072. doi: 10.1093/sleep/zsaa072.

Authors

Nigel McArdle^{1

2}, Sarah V Ward^{3

4}, Romola S Bucks⁵, Kathleen Maddison^{1

2}, Anne Smith⁶, Rae-Chi Huang⁷, Craig E Pennell^{8

9}, David R Hillman^{1

2}, Peter R Eastwood^{1

2}

Affiliations

¹ Centre for Sleep Science, School of Human Sciences, University of Western Australia, Nedlands, Australia.
² West Australian Sleep Disorders Research Institute, Department of Pulmonary Physiology and Sleep Medicine, Sir Charles Gairdner Hospital, Nedlands, Australia.
³ Centre for Genetic Origins of Health and Disease, School of Biomedical Sciences, University of Western Australia, Nedlands, Australia.
⁴ Memorial Sloan Kettering Cancer Center, Department of Epidemiology and Biostatistics, New York, NY.
⁵ School of Psychological Science, University of Western Australia, Nedlands, Australia.
⁶ School of Physiotherapy and Exercise Science, Faculty of Health Sciences, Curtin University, Bentley, Australia.
⁷ Telethon Kids Institute, University of Western Australia, Nedlands, Australia.
⁸ School of Medicine and Public Health, Faculty of Medicine and Health, University of Newcastle, Callaghan, New South Wales, Australia.
⁹ Mothers and Babies Research Centre, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia.

PMID: 32280974
DOI: 10.1093/sleep/zsaa072

Abstract

Sleep disorders in adults are associated with adverse health effects including reduced quality of life and increased mortality. However, there is little information on sleep disorders in young adults. A cross-sectional observational study was undertaken in 1,227 young adults participating in the Western Australian Pregnancy (Raine) Study (2012-2014) to describe the prevalence of common sleep disorders. In-laboratory polysomnography (PSG) and validated survey methods were used, including the Epworth Sleepiness Scale, Pittsburgh Sleep Symptom Questionnaire-Insomnia, and International Restless Legs Syndrome Study Group criteria. A total of 1,146 participants completed a core questionnaire, 1,051 completed a sleep-focused questionnaire and 935 had analyzable PSG data. Participants had a mean age of 22.2 years and female to male ratio of 1.1 to 1. The respective sleep disorder prevalences in females and males were: obstructive sleep apnea (OSA) (apnea-hypopnea index [AHI]: ≥5 events/hour) 14.9% (95% CI: 11.8-18.5) and 26.9% (95% CI: 22.9-31.2); chronic insomnia, 19.3% (95% CI: 16.7-23.9) and 10.6% (95% CI: 8.3-13.9); restless legs syndrome, 3.8% (95% CI: 2.4-5.6) and 1.9% (95% CI: 0.9-3.4); and abnormal periodic leg movements during sleep (>5 movements/hour), 8.6% (95% CI: 6.3-11.5) and 9.6% (95% CI: 7.1-12.7). There were statistically significant differences in prevalence between sexes for OSA and insomnia, which persisted after adjustment for body mass index and education. In those with complete data on all sleep-related assessments (n = 836), at least one sleep disorder was present in 41.0% of females and 42.3% of males. Sleep disorders are very common in young adults. Health practitioners should be aware of these high prevalences, as early identification and treatment can improve quality of life and may reduce later morbidity and mortality.

Keywords: insomnia; periodic leg movements; restless legs syndrome; sleep disordered breathing.

Publication types

Observational Study
Research Support, Non-U.S. Gov't

MeSH terms

Adult
Australia / epidemiology
Cross-Sectional Studies
Female
Humans
Male
Prevalence
Quality of Life*
Sleep Wake Disorders* / epidemiology
Young Adult