Evidence map›Paper›PMID 31422693›Full record

ArticleHypertension (Dallas, Tex. : 1979)2019

Diastolic Blood Pressure J-Curve Phenomenon in a Tertiary-Care Hypertension Clinic.

Stefanie Lip, Li En Tan, Panniyammakal Jeemon, Linsay McCallum, Anna F Dominiczak, Sandosh Padmanabhan

Abstract read
In one paragraph

Article in Hypertension (Dallas, Tex. : 1979), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
–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

31 citing papers in PubMed.

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  5. Low on-treatment blood pressure and cardiovascular events in patients without elevated risk: a nationwide cohort study.Hypertension research : official journal of the Japanese Society of Hypertension · 2024
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  18. Review
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  20. The diastolic blood pressure J-curve revisited: An update.American heart journal plus : cardiology research and practice · 2021
    Review
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

6 authors.

Stefanie LipFrom the Institute of Cardiovascular and Medical Sciences, University of Glasgow, United Kingdom (S.L., L.E.T., P.J., L.M., A.F.D., S.P.).
Li En TanFrom the Institute of Cardiovascular and Medical Sciences, University of Glasgow, United Kingdom (S.L., L.E.T., P.J., L.M., A.F.D., S.P.).
Panniyammakal JeemonFrom the Institute of Cardiovascular and Medical Sciences, University of Glasgow, United Kingdom (S.L., L.E.T., P.J., L.M., A.F.D., S.P.).
Linsay McCallumFrom the Institute of Cardiovascular and Medical Sciences, University of Glasgow, United Kingdom (S.L., L.E.T., P.J., L.M., A.F.D., S.P.).
Anna F DominiczakFrom the Institute of Cardiovascular and Medical Sciences, University of Glasgow, United Kingdom (S.L., L.E.T., P.J., L.M., A.F.D., S.P.).
Sandosh PadmanabhanFrom the Institute of Cardiovascular and Medical Sciences, University of Glasgow, United Kingdom (S.L., L.E.T., P.J., L.M., A.F.D., S.P.).

Funding

British Heart Foundation SP/14/8/31352Medical Research Council MR/M016560/1Medical Research Council MR/N003403/1
6 · The paper itself

Abstract

Concerns exist regarding the potential increased cardiovascular risk from lowering diastolic blood pressure (DBP) in hypertensive patients. We analyzed 30-year follow-up data of 10 355 hypertensive patients attending the Glasgow Blood Pressure Clinic. The association between blood pressure during the first 5 years of treatment and cause-specific hospital admissions or mortality was analyzed using multivariable adjusted Cox proportional hazard models. The primary outcome was a composite of cardiovascular admissions and deaths. DBP showed a U-shaped association (nadir, 92 mm Hg) for the primary cardiovascular outcome hazard and a reverse J-shaped association with all-cause mortality (nadir, 86 mm Hg) and noncardiovascular mortality (nadir, 92 mm Hg). The hazard ratio for the primary cardiovascular outcome after adjustment for systolic blood pressure was 1.38 (95% CI, 1.18-1.62) for DBP <80 compared with DBP of 80 to 89.9 mm Hg (referrant), and the subdistribution hazard ratio after accounting for competing risk was 1.33 (1.17-1.51) compared with DBP ≥80 mm Hg. Cause-specific nonfatal outcome analyses showed a reverse J-shaped relationship for myocardial infarction, ischemic heart disease, and heart failure admissions but a U-shaped relationship for stroke admissions. Age-stratified analyses showed DBP had no independent effect on stroke admissions among the older patient subgroup (≥60 years of age), but the younger subgroup showed a clear U-shaped relationship. Intensive blood pressure reduction may lead to unintended consequences of higher healthcare utilization because of increased cardiovascular morbidity, and this merits future prospective studies. Low on-treatment DBP is associated with increased risk of noncardiovascular mortality, the reasons for which are unclear.

Indexed as

AdultAgedAntihypertensive AgentsBlood PressureBlood Pressure DeterminationDiastoleFemaleHumansHypertensionMaleMiddle AgedMyocardial InfarctionRisk FactorsSurvival RateTertiary Health CareAntihypertensive Agentsblood pressureheart failurehumanshypertensionmyocardial ischemia

Identifiers

PMID31422693
PMCPMC6756261

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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.