{
  "abstract": "Purpose: Interpreting treatment effect size is essential for evidence-informed dietetic care, yet understanding of this competency among dietitians remains unestablished. Methods: We conducted a web-based cross-sectional survey of Australian dietitians (October 2024-February 2025). The survey assessed their understanding of effect size, presented using three absolute estimates (risk difference [RD], risk in treatment vs risk in control groups, number needed to treat [NNT]) and two relative estimates (relative risk [RR], odds ratio [OR]). We also assessed their confidence in determining correct effect size, their perceived usefulness of effect estimates and corresponding certainty of evidence. Results: Approximately 7697 dietitians received the survey link. 27 participated and 13 completers were analyzed. Correct understanding was higher for absolute than relative estimates (30.0% vs 18.2%). Risk in treatment vs risk in control groups was understood the most (41.7%) and RD, RR and OR the least (18.2% each). Confidence was highest for RR [mean (SD): 4.18 (1.25)] and lowest for NNT [3.40 (1.17)]. Perceived usefulness was highest for OR [4.69 (1.18)] and lowest for NNT [3.75 (1.76)]. Certainty of evidence was rated useful [5.69 (1.03)]. Conclusion: Based on a small sample, preliminary evidence suggests limited understanding of effect size among Australian dietitians, highlighting the need for further training and assessment in larger sample.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Nutrition, College of Agriculture and Life Sciences, Texas A&M University, College Station, Texas, USA; Department of Surgery, Houston Methodist H"
  ],
  "article_type": "PUBLISHAHEADOFPRINT",
  "arxiv": null,
  "author_total": 3,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "N. R. Ghosh"
    },
    {
      "name": "E. P. Neale"
    },
    {
      "name": "B. C. Johnston"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1bmybx8sceyyc.bib",
  "cited_by": 0,
  "doi": "10.64898/2026.11.03.26366416",
  "fulltext_url": "https://www.medrxiv.org/content/10.64898/2026.11.03.26366416v1.full",
  "id": "1bmybx8sceyyc",
  "issns": [],
  "landing_url": "https://www.medrxiv.org/content/10.64898/2026.11.03.26366416v1",
  "language": null,
  "licence": "CC-BY-NC-ND",
  "licence_label": "CC BY-NC-ND",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "medrxiv",
      "nutrition"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://www.medrxiv.org/content/10.64898/2026.11.03.26366416v1.full.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-03",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1bmybx8sceyyc.ris",
  "sources": [
    {
      "first_seen": "2026-11-05T00:20:38Z",
      "native_id": "10.64898/2026.11.03.26366416",
      "source": "medrxiv",
      "url": "https://www.medrxiv.org/content/10.64898/2026.11.03.26366416v1"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "medrxiv:nutrition",
      "subfield": "nutrition"
    }
  ],
  "title": "Understanding, Confidence and Usefulness of Effect Size and Certainty of Evidence: A Cross-Sectional Survey Among Australian Dietitians",
  "title_text": "Understanding, Confidence and Usefulness of Effect Size and Certainty of Evidence: A Cross-Sectional Survey Among Australian Dietitians",
  "type": "preprint",
  "updated_at": "2026-11-06T00:20:52Z",
  "url": "https://research.draconitic.com/paper/1bmybx8sceyyc",
  "venue": "medRxiv",
  "versions": []
}