Trial reportArchives of internal medicine2008

Reduction in blood pressure with statins: results from the UCSD Statin Study, a randomized trial.

Beatrice A Golomb, Joel E Dimsdale, Halbert L White, Janis B Ritchie, Michael H Criqui

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Archives of internal medicine, 2008. The graph read 3 numbers from its abstract, feeding 1 cell of the map: it supports the treatment in 1. It reports registered trial NCT00330980. Cited by 50 papers, 2 of them syntheses that pooled it.

3numbers the graph read from it
1cell of the map it votes in
50citing papers in PubMed, 2 pooled it
17.2field-weighted citation impact, top 1% 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.

← favours the treatmentfavours the comparator →
-2.400 · no effect
DBPstatins vs placebofavours the treatment · hypertension, ascvdfeeds one cell of the map
Δ -2.40<.001
RESULTS: Statins modestly but significantly reduced BP relative to placebo,by 2.2 mm Hg for SBP (P=.02) and 2.4 mm Hg for DBP (P<.001) in ITT analysis.
SBPstatins vs placebofavours the treatment · hypertension, ascvdfeeds one cell of the map
Δ -2.20.02
RESULTS: Statins modestly but significantly reduced BP relative to placebo,by 2.2 mm Hg for SBP (P=.02) and 2.4 mm Hg for DBP (P<.001) in ITT analysis.

Read, but not usablea number the graph found but could not read as for or against

SBP and DBPsimvastatin and pravastatin vs placebo, in subjects with full follow-up, and without potential for influence by BP medications (ie, neither receiving nor meriting BP medications)no interval or p-value · hypertension, ascvdfeeds one cell of the map
Δ -2.40
Blood pressure reductions ranged from 2.4 to 2.8 mm Hg for both SBP and DBP with both simvastatin and pravastatin, in those subjects with full follow-up, and without potential for influence by BP medications (ie, neither receiving nor meriting BP medications).

clause the extractor read what became the number

2 · Its place on the map

Where it lands on the map

Rows are treatments, columns are outcomes. The coloured squares are the cells this paper feeds, coloured by the vote it casts there. Click one to jump to what this paper adds to it.

supports the treatmentfavours the comparatorno clear differenceread, but no usable result
3 · What it changes

What it adds to each cell

For every cell the paper feeds: the belief in the claim with and without this paper, and this paper's estimate drawn against every other readable study in the cell. The ringed dot is this paper.

Statins×blood pressure

SupportsOpen on the map →What to test next →

8 readable studies in this cell: 3 favour the treatment, 4 find no difference, 1 favour the comparator.

Belief with this paper
0.80replicated · 4 families support, 1 contradict · against placebo
Without it
0.50This paper moves it by +0.30. It would be contested.
← favours the comparatorfavours the treatment →
1 · no effect

This paper's own estimate is on a different scale from the rest of the cell, so it is not drawn here.

4 · 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.

NCT00330980 phase4completed

Statins and Noncardiovascular Endpoints

Ran2000Enrolled1,000Registered outcomes2Posted comparisons0ConditionsDyslipidemiasArms20 mg Simvastatin, 40 mg Pravastatin (Pravachol), Placebo
PMID 15020036PMID 14744838other papers from this trial
Open the trial in the graph
5 · Its place in the literature

Who cites it

50 citing papers in PubMed, 2 syntheses or guidelines pooled it, 145 citations in OpenAlex.

  1. Pooled it
  2. Antihypertensive effects of statins: a meta-analysis of prospective controlled studies.Journal of clinical hypertension (Greenwich, Conn.) · 2013 · on this map
    Pooled it
  3. Trial
  4. Trial
  5. Trial
  6. Trial
  7. Trial
  8. Trial
  9. Statin therapy lowers muscle sympathetic nerve activity and oxidative stress in patients with heart failure.American journal of physiology. Heart and circulatory physiology · 2012
    Trial
  10. Trial
  11. Trial
  12. Trial
  13. Article
  14. Review
  15. Clarification of hypertension mechanisms provided by the research of central circulatory regulation.Hypertension research : official journal of the Japanese Society of Hypertension · 2023
    Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Hypertension and Dyslipidemia Combined Therapeutic Approaches.High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension · 2022
    Review
6 · The record

Corrections and comments

7 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Beatrice A GolombDepartment of Medicine, University of California, San Diego,9500 Gilman Dr, No. 0995, La Jolla, CA 92093-0995, USA. bgolomb@ucsd.edu
Joel E Dimsdale
Halbert L White
Janis B Ritchie
Michael H Criqui
University of California, San Diego · US

Funding

ZOVIRAX CREAM TO TREAT HERPES LABIALIS IN ADOLESCENTSM01RR000827 · NCRR · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI BRENNER, DAVID A. · 1985 to 2010
$74.3M
STATINS AND NON-CARDIAC ENDPOINTSR01HL063055 · NHLBI · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI GOLOMB, BEATRICE A · 1999 to 2003
$4.8M
NCRR NIH HHS M01 RR000827NCRR NIH HHS M01 RR00827NHLBI NIH HHS R01 HL063055NHLBI NIH HHS R01 HL63055-05
8 · The paper itself

Abstract

The marked sentences are the ones the graph read a number from.

backgroundSome studies have suggested reductions in blood pressure (BP)with statin treatment, particularly in persons with hypertension. Randomized trial evidence is limited.

methodsWe performed a randomized, double-blind, placebo-controlled trial with equal allocation to simvastatin, 20 mg; pravastatin sodium,40 mg; or placebo for 6 months. Nine hundred seventy-three men and women without known cardiovascular disease or diabetes mellitus, with low-density lipoprotein cholesterol screening levels of 115 to 190 mg/dL, had assessment of systolic and diastolic BP (SBP and DBP, respectively). Blood pressure values were compared for placebo vs statins by intention-to-treat (ITT) analysis. Additional analyses were performed that (1) were confined to subjects with neither high baseline BP (SBP>140 mm Hg or DBP>90 mm Hg) nor receiving BP medications, to exclude groups in whom BP medications or medication changes may have influenced results, and (2) separately evaluated simvastatin and pravastatin (vs placebo). The time course of BP changes after statin initiation and the effect of stopping statins on BP were examined.

resultsStatins modestly but significantly reduced BP relative to placebo,by 2.2 mm Hg for SBP (P=.02) and 2.4 mm Hg for DBP (P<.001) in ITT analysis. Blood pressure reductions ranged from 2.4 to 2.8 mm Hg for both SBP and DBP with both simvastatin and pravastatin, in those subjects with full follow-up, and without potential for influence by BP medications (ie, neither receiving nor meriting BP medications).

conclusionsReductions in SBP and DBP occurred with hydrophilic and lipophilic statins and extended to normotensive subjects. These modest effects may contribute to the reduced risk of stroke and cardiovascular events reported on statins. Trial Registration clinicaltrials.gov Identifier: NCT00330980.

Indexed as

Antihypertensive AgentsBlood PressureCardiovascular DiseasesDiastoleDouble-Blind MethodFemaleFollow-Up StudiesHumansHydroxymethylglutaryl-CoA Reductase InhibitorsHypertensionMalePravastatinSimvastatinStrokeSystoleTreatment OutcomeAntihypertensive AgentsHydroxymethylglutaryl-CoA Reductase InhibitorsPravastatinSimvastatin

Identifiers

PMID18413554
PMCPMC4285458
OpenAlexW2029778128

What Socratic holds

Texttitle and abstract
Read underepoch 390

Registered trials

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.