ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2018
How placebo characteristics can influence estimates of intervention effects in trials.
Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 4 of them syntheses that pooled 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.
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.
Who cites it
18 citing papers in PubMed, 4 syntheses or guidelines pooled it.
- Impact of a Chokeberry (Nutrients · 2025Pooled it
- Most physical interventions for musculoskeletal pain in children and adolescents cannot be reproduced in clinical practice: a meta-research study of randomized clinical trials.BMC musculoskeletal disorders · 2024Pooled it
- PEER systematic review of randomized controlled trials: Management of chronic low back pain in primary care.Canadian family physician Medecin de famille canadien · 2021Pooled it
- Inadequate description of placebo and sham controls in a systematic review of recent trials.European journal of clinical investigation · 2019Pooled it
- Changes in the pharyngeal and nasal microbiota in pediatric patients with adenotonsillar hypertrophy.Microbiology spectrum · 2024Trial
- Right ventricular function and exercise capacity in adults with congenital heart disease: Methodological caveats that temper the clinical message.International journal of cardiology. Congenital heart disease · 2026Article
- Considerations for Issues of Regression to the Mean and Contextual Effects in Clinical Trials for Pain in Rheumatic Diseases.Arthritis care & research · 2026Review
- The Programmed Placebo Effect in Patients with Syncope: Preliminary Clinical and Nanostructural Insights with a Hypothetical Quantum-Level Interpretation.Journal of clinical medicine · 2025Article
- SPIRIT 2025 explanation and elaboration: updated guideline for protocols of randomised trials.BMJ (Clinical research ed.) · 2025Article
- Risk factors associated with nocebo effects: A review of reviews.Brain, behavior, & immunity - health · 2024Review
- Comment on Takakura et al. Acupuncture for Japanese Katakori (Chronic Neck Pain): A Randomized Placebo-Controlled Double-Blind Study.Medicina (Kaunas, Lithuania) · 2024Article
- The Therapeutic Potential of Essential Oils in Managing Inflammatory Skin Conditions: A Scoping Review.Pharmaceuticals (Basel, Switzerland) · 2024Article
- ACURATE: A guide for reporting sham controls in trials using acupuncture.Integrative medicine research · 2023Article
- Patient reported outcomes and recruitment rates following the introduction of principled patient information leaflets (PrinciPILs): Protocol for a meta-analysis.NIHR open research · 2023Article
- Reporting quality of sham needles used as controls in acupuncture trials: a methodological evaluation.Chinese medicine · 2022Article
- TIDieR-Placebo: A guide and checklist for reporting placebo and sham controls.PLoS medicine · 2020Article
- [Biosimilars and the nocebo effect].Zeitschrift fur Rheumatologie · 2020Article
- Unraveling the mystery of placebo effect in research and practice: An update.Perspectives in clinical researchReview
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors.
Funding
Abstract
PubMed holds no abstract for this paper.
Indexed as
Identifiers
What OpenQuestion holds
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 OpenQuestion graph.