Cited by 332Sleep and related disordersSleep and Work-Related FatigueObstructive Sleep Apnea Research

Trends in insomnia and excessive daytime sleepiness among US adults from 2002 to 2012

Open access
Ford, Earl S., Cunningham, Timothy J., Giles, Wayne H., Croft, Janet B.·2015·Sleep Medicine

Abstract

Objective Insomnia is a prevalent disorder in the United States and elsewhere. It has been associated with a range of somatic and psychiatric conditions, and adversely affects quality of life, productivity at work, and school performance. The objective of this study was to examine the trend in self-reported insomnia and excessive daytime sleepiness among US adults.Methods We used data of participants aged ≥18 years from the National Health Interview Survey for the years 2002 (30,970 participants), 2007 (23,344 participants), and 2012 (34,509 participants).Results The unadjusted prevalence of insomnia or trouble sleeping increased from 17.5% (representing 37.5 million adults) in 2002 to 19.2% (representing 46.2 million adults) in 2012 (relative increase: +8.0%) (P trend <0.001). The age-adjusted prevalence increased from 17.4% to 18.8%. Significant increases were present among participants aged 18-24, 25-34, 55-64, and 65-74 years, men, women, whites, Hispanics, participants with diabetes, and participants with joint pain. Large relative increases occurred among participants aged 18-24 years (+30.9%) and participants with diabetes (+27.0%). The age-adjusted percentage of participants who reported regularly having excessive daytime sleepiness increased from 9.8% to 12.7% (P trend <0.001). Significant increases were present in most demographic groups. The largest relative increase was among participants aged 25-34 years (+49%). Increases were also found among participants with hypertension, chronic obstructive pulmonary disease, asthma, and joint pain.Conclusions Given the deleterious effects of insomnia on health and performance, the increasing prevalence of insomnia and excessive daytime sleepiness among US adults is a potentially troubling development.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.sleep.2014.12.008

Cites

37 of 37 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

1 of the 38 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Ford, E. S., Cunningham, T. J., Giles, W. H., & Croft, J. B.
Affiliations
Centers for Disease Control and Prevention (US)
Corresponding author
Ford, Earl S.
Venue
Sleep Medicine
Publisher
Elsevier BV
Published
2015-03
Volume
16
Issue
3
Pages
372-378
ISSN
1389-9457 (ISSN-L)
OpenAlex
W1970635510
Cited by
332
References
38
Citations by year
2026: 16 · 2025: 23 · 2024: 40 · 2023: 38 · 2022: 39 · 2021: 36 · 2020: 32 · 2019: 36 · 2018: 27 · 2017: 21 · 2016: 19 · 2015: 4
FWCI
35.64
Type
journal article
Language
en
Open access
Locations
  • Sleep Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institutes of Health (CC999999)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
  • Health Sciences › Medicine › Physiology › Obstructive Sleep Apnea Research
Keywords
insomnia, excessive daytime sleepiness, prevalence trends, sleep disorders, adults, diabetes mellitus, joint pain, age differences, sex differences, racial and ethnic differences, chronic obstructive pulmonary disease, asthma, hypertension, National Health Interview Survey
MeSH terms
Adolescent, Adult, Aged, Female, Humans, Disorders of Excessive Somnolence, Sleep Initiation and Maintenance Disorders, Life Style, Male, Middle Aged, Time Factors, United States, Prevalence, Age Distribution, Young Adult, Self Report

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review