Evidence map›Paper›PMID 33208355›Full record

Observational studyBMJ (Clinical research ed.)2020

First line drug treatment for hypertension and reductions in blood pressure according to age and ethnicity: cohort study in UK primary care.

Sarah-Jo Sinnott, Ian J Douglas, Liam Smeeth, Elizabeth Williamson, Laurie A Tomlinson

Open access · hybridAbstract readObservational Study
In one paragraph

Observational study in BMJ (Clinical research ed.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
3.4field-weighted citation impact, top 6% 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, 2 syntheses or guidelines pooled it, 35 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

5 authors at 1 institution in 1 country.

Sarah-Jo SinnottDepartment of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK sarah-jo.sinnott@lshtm.ac.uk.ORCID 0000-0001-7586-686X
Ian J DouglasDepartment of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK.
Liam SmeethDepartment of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK.
Elizabeth WilliamsonDepartment of Medical Statistics, London School of Hygiene and Tropical Medicine, London, UK.
Laurie A TomlinsonDepartment of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK.
London School of Hygiene & Tropical Medicine · GB

Funding

Medical Research Council G0802403
6 · The paper itself

Abstract

objectiveTo study whether treatment recommendations based on age and ethnicity according to United Kingdom (UK) clinical guidelines for hypertension translate to blood pressure reductions in current routine clinical care.

designObservational cohort study.

settingUK primary care, from 1 January 2007 to 31 December 2017.

participantsNew users of angiotensin converting enzyme inhibitors/angiotensin receptor blockers (ACEI/ARB), calcium channel blockers (CCB), and thiazides.

main outcome measuresChange in systolic blood pressure in new users of ACEI/ARB versus CCB, stratified by age (<

resultsDuring one year of follow-up, 87 440 new users of ACEI/ARB, 67 274 new users of CCB, and 22 040 new users of thiazides were included (median 4 (interquartile range 2-6) blood pressure measurements per user). For non-black people who did not have diabetes and who were younger than 55, CCB use was associated with a larger reduction in systolic blood pressure of 1.69 mm Hg (99% confidence interval -2.52 to -0.86) relative to ACEI/ARB use at 12 weeks, and a reduction of 0.40 mm Hg (-0.98 to 0.18) in those aged 55 and older. In subgroup analyses using six finer age categories of non-black people who did not have diabetes, CCB use versus ACEI/ARB use was associated with a larger reduction in systolic blood pressure only in people aged 75 and older. Among people who did not have diabetes, systolic blood pressure decreased more with CCB use than with ACEI/ARB use in black people (reduction difference 2.15 mm Hg (-6.17 to 1.87)); the corresponding reduction difference was 0.98 mm Hg (-1.49 to -0.47) in non-black people.

conclusionsSimilar reductions in blood pressure were found to be associated with new use of CCB as with new use of ACEI/ARB in non-black people who did not have diabetes, both in those who were aged younger than 55 and those aged 55 and older. For black people without diabetes, CCB new use was associated with numerically greater reductions in blood pressure than ACEI/ARB compared with non-black people without diabetes, but the confidence intervals were overlapping for the two groups. These results suggest that the current UK algorithmic approach to first line antihypertensive treatment might not lead to greater reductions in blood pressure. Specific indications could be considered in treatment recommendations.

Indexed as

Age FactorsAgedAngiotensin-Converting Enzyme InhibitorsAngiotensin Receptor AntagonistsAntihypertensive AgentsBlood PressureCalcium Channel BlockersEthnicityFemaleHumansHypertensionMaleMiddle AgedPractice Patterns, Physicians'Primary Health CareTreatment OutcomeAngiotensin-Converting Enzyme InhibitorsAngiotensin Receptor AntagonistsAntihypertensive AgentsCalcium Channel Blockers

Identifiers

PMID33208355
PMCPMC7670766
OpenAlexW3101649577

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.