Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 1,404

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Influence of context effects on health outcomes: a systematic review

Blasi, Zelda Di, Harkness, Elaine, Ernst, Edzard, Georgiou, Amanda, Kleijnen, Jos·2001·The Lancet

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/s0140-6736(00)04169-6

Cites

1 of 1 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 1 references

Research works printed but not linked: 36

  1. Balint, 1955, The doctor, his patient, and the illness, Lancet, 1, 683, 10.1016/S0140-6736(55)91061-8 · DOI · Paper page
  2. Turner, 1994, The importance of the placebo effects in pain treatment and research, JAMA, 271, 1609, 10.1001/jama.1994.03510440069036 · DOI · Paper page
  3. Thomas, 1994, The placebo in general practice, Lancet, 344, 1066, 10.1016/S0140-6736(94)91716-7 · DOI
  4. Chaput de Saintonge, 1994, Harnessing the placebo effects in healthcare, Lancet, 344, 995, 10.1016/S0140-6736(94)91647-0 · DOI
  5. Laporte, 1994, Placebo effects in psychiatry, Lancet, 344, 1206, 10.1016/S0140-6736(94)90515-0 · DOI
  6. Kleijnen, 1994, Placebo effect in double-blind clinical trials: a review of interactions with medications, Lancet, 344, 1347, 10.1016/S0140-6736(94)90699-8 · DOI · Paper page
  7. Stewart, 1995, Effective physician-patient communication and health outcomes: a review, Can Med Assoc J, 152, 1423
  8. Crow, 1999, The role of expectancies in the placebo effect and in the delivery of health care: a systematic review, Health Technol Assess, 3, 1, 10.3310/hta3030 · DOI · Paper page
  9. Kienle, 1997, The powerful placebo effect: fact or fiction?, J Clin Epidemiol, 50, 1311, 10.1016/S0895-4356(97)00203-5 · DOI · Paper page
  10. Olsson, 1989, Effect of patients' expectations on recovery from acute tonsillitis, Fam Pract, 6, 188, 10.1093/fampra/6.3.188 · DOI
  11. Thomas, 1987, General practice consultations: is there any point in being positive?, BMJ, 294, 1200, 10.1136/bmj.294.6581.1200 · DOI · Paper page
  12. Wied, 1953, Uber die Bedeutung der Suggestion in der Therapie klimakterischer Ausfallerscheinungen, Ärztliche Wochenschrift, 8, 623
  13. Thomas, 1978, The consultation and the therapeutic illusion, BMJ, 1, 1327, 10.1136/bmj.1.6123.1327 · DOI
  14. Rose, 1993, Interaction between patient and test administrator may influence the results of edrophonium provocative testing in patients with noncardiac chest pain, Am J Gastroenterol, 88, 20
  15. Lamb, 1994, Can physicians warn patients of potential side effects without fear of causing those side effects?, Arch Intern Med, 154, 2753, 10.1001/archinte.1994.00420230150018 · DOI
  16. Dahan, 1986, Does informed consent influence therapeutic outcome? A clinical trial of the hypnotic activity of placebo in patients admitted to hospital, BMJ, 293, 363, 10.1136/bmj.293.6543.363 · DOI
  17. Berk, 1977, Psychosocial factors as mediators of acupuncture therapy, J Consult Clin Psychol, 45, 612, 10.1037/0022-006X.45.4.612 · doi:10.1037/0022-006x.45.4.612
  18. Cooper, 1983, The influence of physicians instructions on the outcome of antihypertensive therapy, BrJ Clin Pract, 37, 99
  19. Amigo, 1993, The effect of verbal instruction on blood pressure measurement, J Hypertens, 11, 293, 10.1097/00004872-199303000-00010 · DOI
  20. Linden, 1989, Should we tell them when their blood pressure is up?, Can Med Assoc J, 141, 409
  21. van Weel, 1985, Does labelling and treatment for hypertension increase illness behaviour?, Fam Pract, 2, 147, 10.1093/fampra/2.3.147 · doi:10.1093/fampra/2.3.147
  22. Agras, 1982, Expectation and the blood-pressure-lowering effects of relaxation, Psychosom Med, 44, 389, 10.1097/00006842-198209000-00006 · DOI
  23. Bergmann, 1994, A randomised clinical trial of the effect of informed consent on the analgesic activity of placebo and naproxen in cancer pain, Clin Trials Meta Analysis, 29, 41
  24. Luparello, 1970, The interaction of psychologic stimuli and pharmacologic agents on airway reactivity in asthmatic subjects, Psychosom Med, 32, 509, 10.1097/00006842-197009000-00009 · DOI
  25. Freund, 1972, The doctor-patient relationship and drug effect, Clin Pharmacol Ther, 13, 172, 10.1002/cpt1972132172 · DOI
  26. Gryll, 1978, Situational factors contributing to the placebo effect, Psychopharmacology (Berl), 47, 253, 10.1007/BF00426747 · DOI
  27. Kincheloe, 1991, Psychophysical measurement on pain perception after administration of a topical anesthetic, Quintessence Int, 22, 311
  28. Neild, 1987, Bronchoconstriction in response to suggestion: its prevention by an inhaled anticholinergic agent, BMJ, 290, 674, 10.1136/bmj.290.6469.674 · DOI
  29. Kaldor, 1973, Non-pharmacological influences on therapeutic efficacy, BMJ, 1, 352, 10.1136/bmj.1.5849.352-b · doi:10.1136/bmj.1.5849.352-b
  30. O'Connor, 1996, Framing effects on expectations, decisions, and side effects experienced: the case of influenza immunization, J Clin Epidemiol, 49, 1271, 10.1016/S0895-4356(96)00177-1 · DOI
  31. Butler, 1986, Placebo responses: an experimental study of psychophysiological processes in asthmatic volunteers, Br J Clin Psychol, 25, 173, 10.1111/j.2044-8260.1986.tb00693.x · DOI
  32. de Craen, 1996, Effect of colour of drugs: systematic review of perceived effect of drugs and of their effectiveness, BMJ, 313, 1624, 10.1136/bmj.313.7072.1624 · DOI · Paper page
  33. Redelmeier, 1995, A randomised trial of compassionate care for the homeless in an emergency department, Lancet, 345, 1131, 10.1016/S0140-6736(95)90975-3 · DOI
  34. de Craen, 1999, Placebo effect in the treatment of duodenal ulcer, Br J Clin Pharmacol, 48, 853, 10.1046/j.1365-2125.1999.00094.x · DOI
  35. de Craen, 2000, Placebo effect in the acute treatment of migraine: subcutaneous placebos are better than oral placebos, J Neurol, 247, 183, 10.1007/s004150050560 · DOI · Paper page
  36. Devine, 1992, Effects of psychoeducational care for adult surgical patients: a meta-analysis of 191 studies, Patient Educ Counselling, 19, 129, 10.1016/0738-3991(92)90193-M · DOI · Paper page

Metadata

Authors
Blasi, Z. D., Harkness, E., Ernst, E., Georgiou, A., & Kleijnen, J.
Venue
The Lancet
Publisher
Elsevier BV
Published
2001-03
Volume
357
Issue
9258
Pages
757-762
ISSN
  • 0099-5355 (ISSN-L)
  • 0140-6736
OpenAlex
W2121090957
Cited by
1,404
References
1
FWCI
19.11
Type
journal article
Language
en
Open access
closed
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Influence of context effects on health outcomes: a systematic review. https://app.cochat.ai/papers/10.1016/s0140-6736(00)04169-6
The paper
Blasi, Z. D., Harkness, E., Ernst, E., Georgiou, A., & Kleijnen, J. (2001). Influence of context effects on health outcomes: a systematic review. The Lancet. https://doi.org/10.1016/s0140-6736(00)04169-6

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.