Evidence map›Paper›PMID 12939889›Full record

Trial reportThe British journal of general practice : the journal of the Royal College of General Practitioners2003

A factorial randomised controlled trial of decision analysis and an information video plus leaflet for newly diagnosed hypertensive patients.

Alan A Montgomery, Tom Fahey, Tim J Peters

Abstract readClinical TrialMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in The British journal of general practice : the journal of the Royal College of General Practitioners, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 11 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 11 pooled it
17.3field-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.

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

47 citing papers in PubMed, 11 syntheses or guidelines pooled it, 108 citations in OpenAlex.

  1. Pooled it
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  4. Decision aids for people facing health treatment or screening decisions.The Cochrane database of systematic reviews · 2024
    Pooled it
  5. Clarifying Values: An Updated and Expanded Systematic Review and Meta-Analysis.Medical decision making : an international journal of the Society for Medical Decision Making · 2021
    Pooled it
  6. Interventions to support shared decision making for hypertension: A systematic review of controlled studies.Health expectations : an international journal of public participation in health care and health policy · 2018
    Pooled it
  7. Decision aids for people facing health treatment or screening decisions.The Cochrane database of systematic reviews · 2017
    Pooled it
  8. Risk scoring for the primary prevention of cardiovascular disease.The Cochrane database of systematic reviews · 2017
    Pooled it
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  10. A systematic review of information in decision aids.Health expectations : an international journal of public participation in health care and health policy · 2007
    Pooled it
  11. Guideline
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  20. Effect of adding a values clarification exercise to a decision aid on heart disease prevention: a randomized trial.Medical decision making : an international journal of the Society for Medical Decision Making
    Trial
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 2 countries.

Alan A MontgomeryDivision of Primary Health Care, University of Bristol, Cotham House, Cotham Hill, Bristol BS6 6JL. alan.a.montgomery@bristol.ac.uk
Tom Fahey
Tim J Peters
University of Bristol · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is a lack of evidence regarding the value of tools designed to aid decision making in patients with newly diagnosed hypertension.

aimTo evaluate two interventions for assisting newly diagnosed hypertensive patients in the decision whether to start drug therapy for reducing blood pressure. DESIGN OF STUDY: Factorial randomised controlled trial.

settingTwenty-one general practices in south-west England, UK.

methodAdults aged 32 to 80 years with newly diagnosed hypertension were randomised to receive either: (a) computerised utility assessment interview with individualized risk assessment and decision analysis; or (b) information video and leaflet about high blood pressure; or (c) both interventions; or (d) neither intervention. Outcome measures were decisional conflict, knowledge, state anxiety, intentions regarding starting treatment, and actual treatment decision.

resultsOf 217 patients randomised, 212 (98%) were analysed at the primary follow-up (mean age = 59 years, 49% female). Decision analysis patients had lower decisional conflict than those who did not receive this intervention (27.6 versus 38.9, 95% confidence interval [CI] for adjusted difference = -13.0 to -5.8, P < 0.001), greater knowledge about hypertension (73% versus 67%, adjusted 95% CI = 2% to 9%, P = 0.003) and no evidence of increased state anxiety (34.8 versus 36.8, adjusted 95% CI = -5.6 to 0.1, P = 0.055). Video/leaflet patients had lower decisional conflict than corresponding controls (30.3 versus 36.8, adjusted 95% CI = -7.4 to -0.6, P = 0.021), greater knowledge (75% versus 65%, adjusted 95% CI = 6% to 13%, P < 0.001) and no evidence of increased state anxiety (35.7 versus 36.1, adjusted 95% CI = -3.9 to 1.7, P = 0.46). There were no differences between either of the interventions and their respective controls in the proportion of patients prescribed antihypertensive medication (67%).

conclusionsThis trial demonstrates that, among patients facing a real treatment decision, interventions to inform patients about hypertension and to clarify patients' values concerning outcomes of treatment are effective in reducing decisional conflict and increasing patient knowledge, while not resulting in any increases in state anxiety.

Indexed as

Decision Support TechniquesPatient ParticipationAdultAgedAged, 80 and overFemaleHealth Knowledge, Attitudes, PracticeHumansHypertensionMaleMiddle AgedPamphletsPatient Education as Topic

Identifiers

PMID12939889
PMCPMC1314618
OpenAlexW1874971545

What OpenQuestion 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 OpenQuestion graph.