Evidence map›Paper›PMID 33145901›Full record

ArticleBJOG : an international journal of obstetrics and gynaecology2021

Poor sleep is associated with higher blood pressure and uterine artery pulsatility index in pregnancy: a prospective cohort study.

Y Tang, J Zhang, F Dai, N S Razali, S Tagore, Bsm Chern, K H Tan

Open access · hybridAbstract read
In one paragraph

Article in BJOG : an international journal of obstetrics and gynaecology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 14% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

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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

7 authors at 2 institutions in 2 countries.

Y TangDepartment of Obstetrics and Gynaecology, KK Women's and Children's Hospital, Singapore City, Singapore.ORCID https://orcid.org/0000-0003-1925-8493
J ZhangDepartment of Obstetrics and Gynaecology, KK Women's and Children's Hospital, Singapore City, Singapore.
F DaiDepartment of Obstetrics and Gynaecology, KK Women's and Children's Hospital, Singapore City, Singapore.
N S RazaliDepartment of Obstetrics and Gynaecology, KK Women's and Children's Hospital, Singapore City, Singapore.
S TagoreDepartment of Maternal Fetal Medicine, KK Women's and Children's Hospital, Singapore City, Singapore.
Bsm ChernDepartment of Minimally Invasive Surgery, KK Women's and Children's Hospital, Singapore City, Singapore.
K H TanDepartment of Obstetrics and Gynaecology, KK Women's and Children's Hospital, Singapore City, Singapore.
KK Women's and Children's Hospital · SGShanghai Jiao Tong University · CN

Funding

National Medical Research Council (NMRC) Collaborative Centre Grant IPRAMHO/CGAug16C008
6 · The paper itself

Abstract

objectiveTo elucidate the association between sleep disturbances and blood pressure as well as uterine artery Doppler during pregnancy in women with no pre-existing hypertension.

designProspective cohort study.

settingOutpatient specialist clinics at KK Women's and Children's Hospital, Singapore. POPULATION: Women with viable singleton pregnancies confirmed by ultrasonography at less than 14 weeks of amenorrhoea at first visit.

methodsIn all, 926 subjects were recruited for this study in the outpatient specialist clinics at KK Women's and Children's Hospital, Singapore, between 1 September 2010 and 31 August 2014. They were followed up throughout pregnancy with sleep quality, blood pressure and uterine artery Doppler assessed at each visit.

main outcome measuresSleep quality, blood pressure and uterine artery Doppler.

resultsSleep progressively worsened as pregnancy advanced. Shorter sleep duration and poorer sleep efficiency were associated with higher blood pressure, especially in the first trimester. Mixed model analysis demonstrated an overall positive association between sleep quality represented by Pittsburgh Sleep Quality Index (PSQI) score and diastolic blood pressure (DBP) (P < 0.001) and mean arterial pressure (MAP) (P = 0.005) during pregnancy after considering all trimesters. Sleep duration was found to be negatively associated with both systolic blood pressure (SBP) (P = 0.029) and DBP (P = 0.002), whereas sleep efficiency was negatively correlated with DBP (P = 0.002) only. Overall poor sleep during pregnancy was also found to be associated with a higher uterine artery pulsatility index.

conclusionOur prospective study demonstrated that poor sleep quality is significantly associated with higher blood pressure and uterine artery pulsatility index during pregnancy. TWEETABLE ABSTRACT: Poor sleep quality is significantly associated with higher blood pressure and higher uterine artery pulsatility index during pregnancy.

Indexed as

Ultrasonography, Doppler, PulsedAdultCohort StudiesFemaleHumansHypertension, Pregnancy-InducedLongitudinal StudiesPregnancyPulsatile FlowSleep Wake DisordersUterine ArteryBlood pressurepregnancysleep qualityuterine artery Doppler

Identifiers

PMID33145901
PMCPMC8246763
OpenAlexW3193108593

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.