Revisiting blood pressure thresholds to define hypertension during pregnancy: is 140/90 mmHg too high?

Catherine Cluver, Stephen Tong

Abstract readComment

In one paragraph

Article in The Lancet. Global health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it

0cells of the map it votes in

4citing papers in PubMed, 2 pooled it

–field-weighted citation impact

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

4 citing papers in PubMed, 2 syntheses or guidelines pooled it.

American College of Cardiology and American Heart Association blood pressure categories-a systematic review of the relationship with adverse pregnancy outcomes in the first half of pregnancy.American journal of obstetrics and gynecology · 2023
Pooled it
Optimal blood pressure target to prevent severe hypertension in pregnancy: A systematic review and meta-analysis.Hypertension research : official journal of the Japanese Society of Hypertension · 2022
Pooled it
Diagnostic properties of differing BP thresholds for adverse pregnancy outcomes in standard-risk nulliparous women: A secondary analysis of SCOPE cohort data.PLoS medicine · 2025
Article
Gestational diabetes mellitus as a risk factor for future Type-2 diabetes mellitus: An experience from a tertiary care diabetes hospital, Karachi - Pakistan.Pakistan journal of medical sciences
Article

4 · The record

Corrections and comments

Comment on
Blood pressure thresholds in pregnancy for identifying maternal and infant risk: a secondary analysis of Community-Level Interventions for Pre-eclampsia (CLIP) trial data.2021

5 · Who and what money

Authors and funding

2 authors.

Catherine CluverDepartment of Obstetrics and Gynaecology, Stellenbosch University and Tygerberg Hospital, Cape Town, South Africa; Translational Obstetrics Group, Department of Obstetrics and Gynaecology, University of Melbourne, Melbourne, VIC, Australia; Mercy Perinatal, Mercy Hospital for Women, Heidelberg, VIC, Australia. Electronic address: cathycluver@hotmail.com.

Stephen TongDepartment of Obstetrics and Gynaecology, Stellenbosch University and Tygerberg Hospital, Cape Town, South Africa; Translational Obstetrics Group, Department of Obstetrics and Gynaecology, University of Melbourne, Melbourne, VIC, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

HypertensionBlood PressureBlood Pressure DeterminationFemaleHumansPregnancyVital Signs

Identifiers

PMID34237264

DOI10.1016/S2214-109X(21)00285-0

What Socratic holds

Textmetadata

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 Socratic graph.