Evidence map›Paper›PMID 20019863›Full record

ReviewDeutsches Arzteblatt international2009

Placebo: misunderstandings and prejudices.

Matthias Breidert, Karl Hofbauer

Open access · greenAbstract readReview
In one paragraph

Review in Deutsches Arzteblatt international, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
0.8field-weighted citation impact, top 29% 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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 18 citations in OpenAlex.

  1. The placebo effect and its clinical associations in gambling disorder.Annals of clinical psychiatry : official journal of the American Academy of Clinical Psychiatrists · 2017
    Pooled it
  2. Pooled it
  3. Placebo response in trichotillomania.International clinical psychopharmacology · 2017
    Trial
  4. Trial
  5. Trial
  6. Article
  7. Article
  8. Review
  9. Article
  10. Dilemma in Jurisdiction.Deutsches Arzteblatt international · 2010
    Article
  11. Statistical methods are inadequate.Deutsches Arzteblatt international · 2010
    Article
  12. Results are easily manipulated.Deutsches Arzteblatt international · 2010
    Article
  13. Stop the trench wars.Deutsches Arzteblatt international · 2010
    Article
  14. Therapies that promote emancipation.Deutsches Arzteblatt international · 2010
    Article
  15. Professional ban.Deutsches Arzteblatt international · 2010
    Article
  16. Influence of the therapeutic environment.Deutsches Arzteblatt international · 2010
    Article
  17. Epigenetics.Deutsches Arzteblatt international · 2010
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 2 institutions in 1 country.

Matthias BreidertMedizinische Klinik I, Kliniken im Naturpark Altmühltal, Klinik Kösching Krankenhausstr. 19 85092 Kösching, Germany.
Karl Hofbauer
DRK Kliniken Berlin · DEMünchen Klinik Harlaching · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe role of placebos is often misunderstood, leading both to overvaluation and to inappropriate disdain. The effect of a placebo that contains no pharmacologically active substance is often confused with the effect of administration by a physician. The aim of this article is to review the current data on placebos, evaluate these data critically, and provide a well-founded and understandable explanation of the effects that placebos do and do not possess.

methodsSelective literature review.

resultsRecent studies employing modern imaging techniques have provided objective correlates of the effect of placebo administration for certain indications. A recent paper even suggested a genetic basis for it. Two main mechanisms underlie the effect of placebo administration: conditioned reflexes, which are subconscious, and the patient's expectations, which are conscious. Further factors include the physician's personality and the setting in which the treatment takes place.

conclusionsThe mechanisms of action of placebo administration, with which positive therapeutic effects can be achieved with little effort, should be consciously exploited by physicians when giving their patients pharmacologically active medications as well.

Indexed as

Clinical Trials as TopicConditioning, PsychologicalPatient SatisfactionPlacebo EffectPrejudiceSet, Psychologycomplementary medicinedrug researchdrug safetymedical prescriptionstreatment study

Identifiers

PMID20019863
PMCPMC2795335
OpenAlexW191832329

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.