Evidence map›Paper›PMID 28449913›Full record

ArticleSleep medicine2017

Allostatic load in early pregnancy is associated with poor sleep quality.

Vanessa J Hux, James M Roberts, Michele L Okun

Open access · greenAbstract read
In one paragraph

Article in Sleep medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Social Determinants of Health and Early Brain Development.Pediatric clinics of North America · 2025
    Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Maternal Inflammation During Pregnancy and Offspring Brain Development: The Role of Mitochondria.Biological psychiatry. Cognitive neuroscience and neuroimaging · 2022
    Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Vanessa J HuxMagee-Womens Research Institute, USA; Department of Obstetrics and Gynecology, The Ohio State University, USA.
James M RobertsMagee-Womens Research Institute, USA; Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh, USA; Department of Epidemiology, University of Pittsburgh, USA; Clinical and Translational Science Institute, University of Pittsburgh, USA.
Michele L OkunMagee-Womens Research Institute, USA; Department of Psychiatry, University of Pittsburgh, USA; University of Colorado, Colorado Springs, USA. Electronic address: mokun@uccs.edu.
University of Pittsburgh · USMagee-Womens Research Institute · US

Funding

TROPHOBLAST PRODUCTS IN GENESIS OF PREECLAMPSIAP01HD030367 · NICHD · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI HUBEL, CARL A · 1993 to 2012
$17.2M
Recruitment of Undergraduates to Mental Health ResearchR25MH054318 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI HAAS, GRETCHEN L · 1994 to 2013
$2.8M
Pregnancy-Related Sleep Disturbances May Increase Pregnancy ComplicationsR00NR010813 · NINR · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI OKUN, MICHELE L · 2009 to 2011
$732k
NICHD NIH HHS P01 HD030367NIMH NIH HHS R25 MH054318NINR NIH HHS R00 NR010813
6 · The paper itself

Abstract

backgroundAllostatic load (AL) measures the cumulative impact of chronic stress and is associated with adverse health outcomes. A novel scoring system has previously been developed for AL in early pregnancy that is associated with pre-eclampsia. It was hypothesized that AL, as identified by the present model, is associated with psychosocial stressors and, specifically, poor sleep quality.

methodsWomen were selected from a low-risk, community-dwelling study population who enrolled at <15 weeks gestation. Nine physiologic components were divided among the domains of cardiovascular, metabolic, and inflammatory function. Spearman's rank correlations were used to examine the association of AL with age, income, the Revised Prenatal Distress Questionnaire (NuPDQ), Inventory of Depressive Symptoms (IDS), and Pittsburgh Sleep Quality Index (PSQI). The Wilcoxon rank-sum test was used to compare AL by race and educational attainment.

resultsA total of 103 women were identified, with: a mean age of 29.8 ± 5.0 years, 17.5% black, and mean gestational age 12.2 ± 1.1 weeks. Allostatic load was positively correlated with the PSQI (ρ = 0.23, p = 0.018). There were no associations with age, income, prenatal distress, race, or depression scores. College-educated women had lower AL compared with those with less education (0.57 ± 0.43 vs 0.81 ± 0.55, p = 0.045).

conclusionHigher AL, measured by the pregnancy-specific model, was associated with poorer sleep quality and lower educational attainment, both of which were considered to be chronic stressors. These relationships were consistent with previous findings in non-pregnant populations, and suggest that AL may be useful for capturing the physiologic impact of chronic stress in early pregnancy.

Indexed as

AdultAllostasisBlack or African AmericanFemaleGestational AgeHumansIncomePregnancyPregnancy ComplicationsSleep Initiation and Maintenance DisordersSleep Wake DisordersSocioeconomic FactorsStress, PsychologicalAllostatic loadPittsburgh Sleep Quality Index (PSQI)PregnancyPsychosocial stressSleep quality

Identifiers

PMID28449913
PMCPMC5501183
OpenAlexW2537000338

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.