Evidence map›Paper›PMID 8688763›Full record

ArticleBMJ (Clinical research ed.)1996

What constitutes controlled hypertension? Patient based comparison of hypertension guidelines.

T P Fahey, T J Peters

Abstract read
In one paragraph

Article in BMJ (Clinical research ed.), 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
–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, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Improving management of hypertension in general practice: a randomised controlled trial of feedback derived from electronic patient data.The British journal of general practice : the journal of the Royal College of General Practitioners · 2005
    Trial
  3. A cluster randomised controlled trial of patient-held medical records for people with schizophrenia receiving shared care.The British journal of general practice : the journal of the Royal College of General Practitioners · 2003
    Trial
  4. Trial
  5. Trial
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. What is the quality of drug therapy clinical practice guidelines in Canada?CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2001
    Article
  14. Blood pressure control in treated hypertensive patients: clinical performance of general practitioners.The British journal of general practice : the journal of the Royal College of General Practitioners · 2001
    Article
  15. Ageing Britain--challenges and opportunities for general practice.The British journal of general practice : the journal of the Royal College of General Practitioners · 2001
    Article
  16. Article
  17. When should hypertension be treated? The different perspectives of Canadian family physicians and patients.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2000
    Article
  18. Article
  19. A novel method of guideline development for the diagnosis and management of mild to moderate hypertension.The British journal of general practice : the journal of the Royal College of General Practitioners · 1999
    Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

T P FaheyDepartment of Social Medicine, University of Bristol.
T J Peters

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo investigate and quantify the extent to which variations in guidelines influence assessment of control of hypertension.

designCross sectional study. Selected patients had hypertension assessed as controlled or uncontrolled with guidelines from New Zealand, Canada, the United States, Britain, and the World Health Organisation.

setting18 general practices in Oxfordshire. SUBJECTS: 876 patients with diagnosed hypertension and taking antihypertensive drugs.

main outcome measuresProportion of patients with controlled hypertension according to each set of guidelines.

resultsThe proportion of patients with controlled hypertension varied from 17.5% to 84.6% with the different guidelines after adjustment for the sampling method. All five sets of guidelines agreed on the classification for 31% (277) of the patients. The New Zealand guidelines calculate an absolute risk of a cardiovascular event. When this was taken as the standard half of the patients with uncontrolled hypertension by the United States criteria would be treated unnecessarily and 31% of those classified as having controlled hypertension by the Canadian guidelines would be denied beneficial treatment.

conclusionsHypertension guidelines are inconsistent in their recommendations and need to make clear the absolute benefits and risks of treatment.

Indexed as

Practice Guidelines as TopicAgedAntihypertensive AgentsCanadaCardiovascular DiseasesCross-Sectional StudiesHumansHypertensionMiddle AgedNew ZealandRiskUnited KingdomUnited StatesAntihypertensive Agents

Identifiers

PMID8688763
PMCPMC2351512

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.