Observational studyJournal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine2018
Changes in Sleep Characteristics and Breathing Parameters During Sleep in Early and Late Pregnancy.
Observational study in Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
26 citing papers in PubMed, 1 synthesis or guideline pooled it, 65 citations in OpenAlex.
- Effectiveness of nonpharmacological sleep interventions in pregnancy: a systematic review and meta-analysis.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2025Pooled it
- Physiological Mechanisms in Pregnancy and Their Relevance to the Clinical Management of Perinatal Mental Illness.Journal of clinical medicine · 2026Review
- Maternal Sleep Quality and Early-Life Epigenetic Programming of Bone-Related Genes in Neonatal Cord Blood: Findings from the PERSIAN Birth Cohort, Isfahan.Calcified tissue international · 2026Article
- Feasibility and acceptability of longitudinal measurement of 24-hour movement profiles across pregnancy using research-grade devices paired with sleep diaries.Journal of activity, sedentary and sleep behaviors · 2026Article
- Sleep Health in Human Biology Research.American journal of human biology : the official journal of the Human Biology Council · 2025Article
- Dreams and Nightmares in Early Pregnancy: A Comparative Study with a Control Group.Nature and science of sleep · 2025Article
- Daily changes in sleep stages and associated cardiovascular parameters during pregnancy: using a wearable device.Frontiers in global women's health · 2025Article
- Maternal cardiorespiratory coupling: differences between pregnant and nonpregnant women are further amplified by sleep-stage stratification.Journal of applied physiology (Bethesda, Md. : 1985) · 2023Article
- A Relation between Obstructive Sleep Apnea in Pregnancy and Delivering Small for Gestational Age Infant-A Systematic Review.Journal of clinical medicine · 2023Review
- Subsequent maternal sleep deprivation aggravates neurobehavioral abnormalities, inflammation, and synaptic function in adult male mice exposed to prenatal inflammation.Frontiers in behavioral neuroscience · 2023Article
- Dietary Inflammatory Index and sleep quality and duration among pregnant women with overweight or obesity.Sleep · 2022Article
- Changes in 24-Hour Movement Behaviors From Early to Late Pregnancy in Individuals With Prepregnancy Overweight or Obesity.Journal of physical activity & health · 2022Article
- Effects of Gestational Sleep Patterns and Their Changes on Maternal Glycemia and Offspring Physical Growth in Early Life.Nutrients · 2022Article
- Maternal Physical Activity at Term and Spontaneous Labor: A Case-Crossover Study.Journal of physical activity & health · 2022Article
- Environmental Enrichment Reverses Maternal Sleep Deprivation-Induced Anxiety-Like Behavior and Cognitive Impairment in CD-1 Mice.Frontiers in behavioral neuroscience · 2022Article
- Altered cognition and anxiety in adolescent offspring whose mothers underwent different-pattern maternal sleep deprivation, and cognition link to hippocampal expressions ofFrontiers in behavioral neuroscience · 2022Article
- A Micro-Level Analysis of Physiological Responses to COVID-19: Continuous Monitoring of Pregnant Women in California.Frontiers in public health · 2022Article
- A Technology-Based Pregnancy Health and Wellness Intervention (Two Happy Hearts): Case Study.JMIR formative research · 2021Article
- Sleep Quality and Electroencephalogram Delta Power.Frontiers in neuroscience · 2021Article
- The Psychological Impact of the Coronavirus Disease 2019 Pandemic on Pregnant Women in China.Frontiers in psychiatry · 2021Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
Abstract
STUDY
objectivesFew studies have objectively evaluated sleep characteristics during pregnancy or investigated the relationship between altered spectral electroencephalogram (EEG) bands and sleep-disordered breathing (SDB). The study aimed to describe changes in sleep as measured by polysomnography (PSG) and spectral EEG bands during pregnancy and to examine the relationship between delta power in non-rapid eye movement (NREM) sleep and SDB.
methodsThis is a secondary analysis of a prospective study. One hundred twenty-three women underwent full PSG in early pregnancy, and 97 repeated PSG in late pregnancy. Spectral analysis of the EEG in NREM sleep was performed. We used linear and logistic mixed-model regression to analyze the sleep measures and linear regression to explore the association between delta power and apnea-hypopnea index (AHI) changes during pregnancy.
resultsIn late pregnancy, women had shorter sleep duration, poorer sleep efficiency, more awakenings, more stage N2 sleep, less slow wave sleep, less REM sleep, higher AHI, and higher periodic limb movement index compared to early pregnancy. The percentage of stage N1 sleep, sleep latency, REM sleep latency, and arousal index frequency did not change. Regarding EEG-spectra, delta and theta powers decreased, but beta-2 power increased during pregnancy. In multivariable analyses, greater reduction of delta power was associated with larger increases in AHI (β [95% confidence interval] = -0.038 [-0.073, -0.002],
conclusionsPSG-measured sleep characteristics change during pregnancy. Delta power decreases when the severity of SDB increases during pregnancy. COMMENTARY: A commentary on this article appears in this issue on page 1095.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.