Why perform a priori sample size calculation?

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

21 citing papers in PubMed, 2 syntheses or guidelines pooled it.

1. A Systematic Review of a Polyvagal Perspective on Embodied Contemplative Practices as Promoters of Cardiorespiratory Coupling and Traumatic Stress Recovery for PTSD and OCD: Research Methodologies and State of the Art.International journal of environmental research and public health · 2021
   Pooled it
2. Analysis of a Systematic Review About Blue Light-Filtering Intraocular Lenses for Retinal Protection: Understanding the Limitations of the Evidence.JAMA ophthalmology · 2019
   Pooled it
3. Coagulation Management of Critically Bleeding Patients With Viscoelastic Testing Presented as a 3D-Animated Blood Clot (The Visual Clot): Randomized Controlled High-Fidelity Simulation Study.Journal of medical Internet research · 2023
   Trial
4. Seven versus Ten Days Antibiotics Course for Acute Pyogenic Meningitis in Children: A Randomized Controlled Trial.Indian journal of pediatrics · 2021
   Trial
5. The effect of manual therapy to the thoracic spine on pain-free grip and sympathetic activity in patients with lateral epicondylalgia humeri. A randomized, sample sized planned, placebo-controlled, patient-blinded monocentric trial.BMC musculoskeletal disorders · 2020
   Trial
6. A randomized, single-ascending-dose, ivermectin-controlled, double-blind study of moxidectin in Onchocerca volvulus infection.PLoS neglected tropical diseases · 2014
   Trial
7. Influence of Digital Workflows on Maxillary Complete Denture Base Fit Accuracy: A Prospective Clinical 3D Evaluation.Journal of functional biomaterials · 2026
   Article
8. Response to the Letter Regarding "Early Protein Supplementation Enhances Wound Healing and Reduces Complications Following Abdominoplasty: A Controlled Study in Non-bariatric Patients".Aesthetic plastic surgery · 2026
   Article
9. Early Protein Supplementation Enhances Wound Healing and Reduces Complications Following Abdominoplasty: A Controlled Study in Non-bariatric Patients.Aesthetic plastic surgery · 2026
   Article
10. Changes in the mechanical properties of myotonometric muscles following manual therapy during archery: a single-group, single-session repeated measurement study.Scientific reports · 2026
    Article
11. Observational study exploring the association between sexes and perioperative morbidities after aseptic hip revision arthroplasty.BMC musculoskeletal disorders · 2026
    Observational
12. Evaluation of a decided sample size in machine learning applications.BMC bioinformatics · 2023
    Article
13. Protocol for a randomized controlled trial to assess the effect of Self-Management for Amputee Rehabilitation using Technology (SMART): An online self-management program for individuals with lower limb loss.PloS one · 2023
    Article
14. A Systematic Approach to Beginning a Retrospective Research Study: A guide for surgical trainees.Surgery in practice and science · 2022
    Article
15. Lessons learned from the pilot study of an orthostatic hypotension intervention in the subacute phase following spinal cord injury.The journal of spinal cord medicine · 2019
    Article
16. Tibial Tubercle-Trochlear Groove Distance Is a Reliable and Accurate Indicator of Patellofemoral Instability.Clinical orthopaedics and related research · 2019
    Article
17. Sample size calculation: Basic principles.Indian journal of anaesthesia · 2016
    Review
18. Incisal Apical Root Resorption Evaluation after Low-Friction Orthodontic Treatment Using Two-Dimensional Radiographic Imaging and Trigonometric Correction.Journal of clinical and diagnostic research : JCDR · 2015
    Article
19. How to optimize participant retention and complete follow-up in surgical research.Canadian journal of surgery. Journal canadien de chirurgie · 2014
    Article
20. Opportunities and challenges for junior investigators conducting pain clinical trials.Pain reports
    Article

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

Authors and funding

4 authors.

Funding

No grant is acknowledged in the PubMed record.

Abstract

PubMed holds no abstract for this paper.

Indexed as