Evidence map›Paper›PMID 27939493›Full record

ArticlePregnancy hypertension2016

Hypertensive disease in pregnancy in Botswana: Prevalence and impact on perinatal outcomes.

Katherine M Johnson, Rebecca Zash, Miriam J Haviland, Michele R Hacker, Rebecca Luckett, Modiegi Diseko, Gloria Mayondi, Roger Shapiro

Open access · greenAbstract read
In one paragraph

Article in Pregnancy hypertension, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 15% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Anti-hypertensive use for non-severe gestational hypertension in Botswana: A case-control study.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2022
    Trial
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  9. A Scoping Review of Preterm Births in Sub-Saharan Africa: Burden, Risk Factors and Outcomes.International journal of environmental research and public health · 2022
    Article
  10. Comparison of Clinical Pregnancy Outcomes after Fresh and Frozen Embryo Transfer.Computational and mathematical methods in medicine · 2022
    Article
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  12. Review
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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

8 authors at 3 institutions in 2 countries.

Katherine M JohnsonDepartment of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA, United States; Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, MA, United States. Electronic address: kjohnso8@bidmc.harvard.edu.
Rebecca ZashDivision of Infectious Diseases, Beth Israel Deaconess Medical Center, Boston, MA, United States; Botswana-Harvard Partnership, Gaborone, Botswana.
Miriam J HavilandDepartment of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA, United States; Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, MA, United States.
Michele R HackerDepartment of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA, United States; Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, MA, United States.
Rebecca LuckettDepartment of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, MA, United States.
Modiegi DisekoBotswana-Harvard Partnership, Gaborone, Botswana.
Gloria MayondiBotswana-Harvard Partnership, Gaborone, Botswana.
Roger ShapiroDivision of Infectious Diseases, Beth Israel Deaconess Medical Center, Boston, MA, United States; Botswana-Harvard Partnership, Gaborone, Botswana; Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, United States.
Botswana Harvard AIDS Institute Partnership · BWHarvard University · USBeth Israel Deaconess Medical Center · US

Funding

Harvard Clinical and Translational Science CenterUL1TR001102 · NCATS · HARVARD MEDICAL SCHOOL · PI NADLER, LEE MARSHALL · 2013 to 2017
$106.2M
Birth Outcomes Surveillance in BotswanaR01HD080471 · NICHD · HARVARD SCHOOL OF PUBLIC HEALTH · PI SHAPIRO, ROGER L · 2014 to 2018
$2.6M
NCATS NIH HHS UL1 TR001102NICHD NIH HHS R01 HD080471
6 · The paper itself

Abstract

objectivesPerinatal morbidity in sub-Saharan Africa has been attributed to infection, obstetric emergencies, and preterm birth, but less is known about hypertension in pregnancy. Our objective was to characterize the prevalence of hypertension in pregnancy and the impact of hypertension on perinatal outcomes in sub-Saharan Africa. STUDY

designWe performed surveillance of obstetric records at eight of the largest public hospitals in Botswana. Women were included in this analysis if they were HIV-uninfected and had singleton gestations and at least one prenatal blood pressure measurement.

main outcome measuresWe measured stillbirth, preterm birth, small for gestational age, and neonatal death in women with and without hypertension in pregnancy.

resultsWe included 14,170 pregnancies. Hypertension occurred in 3156 (22.2%) women, with 602 (19.1%) defined as severe. Severe hypertension increased risk of stillbirth (RR 4.4; 95% CI 3.2-6.2), preterm birth (RR 2.5; 95% CI 2.2-2.8), small for gestational age (RR 2.7; 95% CI 2.3-3.1) and neonatal death (RR 5.1; 95% CI 2.9-5.6). Non-severe hypertension increased risk of stillbirth (RR 2.0; 95% CI 1.5-2.7), preterm birth (RR 1.2; 95% CI 1.1-1.3), and small for gestational age (RR 1.6; 95% CI 1.4-1.8). Perinatal outcomes were worse in women with hypertension who had spontaneous preterm birth compared to those who underwent iatrogenic preterm delivery.

conclusionsHypertension in pregnancy is common in Botswana and leads to a large number of adverse outcomes. Improved management of hypertension in pregnancy may improve perinatal morbidity and mortality.

Indexed as

Infant MortalityInfant, Small for Gestational AgeAdultBotswanaFemaleHumansHypertension, Pregnancy-InducedInfantLabor, InducedPregnancyPremature BirthPrevalenceProspective StudiesSeverity of Illness IndexStillbirthYoung Adult

Identifiers

PMID27939493
PMCPMC8210947
OpenAlexW2531740172

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.