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Articles by John P.A
SPIRIT 2025 explanation and elaboration: updated guideline for protocols of randomised trials
Hróbjartsson, A. et al. (2025) SPIRIT 2025 explanation and elaboration: updated guideline for protocols of randomised trials. BMJ, 389, e081660. (doi: 10.1136/bmj-2024-081660) (PMID:40294956) (PMCID:PMC12128891) Text 355805.pdf - Published Version Available under License Creative Commons Attribution. 974kB Abstract High quality protocols facilitate proper planning, conduct, reporting, and external review of randomised trials, yet their completeness varies and key elements are often not considered.
SPIRIT 2025 statement: updated guideline for protocols of randomised trials
Chan, A.-W. et al. (2025) SPIRIT 2025 statement: updated guideline for protocols of randomised trials. Lancet, (doi: 10.1016/S0140-6736(25)00770-6) (Early Online Publication) Text 350057.pdf - Accepted Version Restricted to Repository staff only until 28 April 2026. 619kB Abstract The protocol of a randomised trial is the foundation for study planning, conduct, reporting, and external review.
CONSORT 2025 statement: updated guideline for reporting randomised trials
Hopewell, S. et al. (2025) CONSORT 2025 statement: updated guideline for reporting randomised trials. BMJ, 389, e081123. (doi: 10.1136/bmj-2024-081123) (PMID:40228833) (PMCID:PMC11995449) Text 354412.pdf - Published Version Available under License Creative Commons Attribution. 319kB Abstract Well designed and properly executed randomised trials are considered the most reliable evidence on the benefits of healthcare interventions.
August 2024 data-update for "Updated science-wide author databases of standardized citation indicators"
Description Citation metrics are widely used and misused. We have created a publicly available database of top-cited scientists that provides standardized information on citations, h-index, co-authorship adjusted hm-index, citations to papers in different authorship positions and a composite indicator (c-score). Separate data are shown for career-long and, separately, for single recent year impact.
Prognostic Biomarkers in Kidney Transplantation: a... : Journal of the American Society of Nephrology
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October 2023 data-update for "Updated science-wide author databases of standardized citation indicators"
Description Citation metrics are widely used and misused. We have created a publicly available database of top-cited scientists that provides standardized information on citations, h-index, co-authorship adjusted hm-index, citations to papers in different authorship positions and a composite indicator (c-score). Separate data are shown for career-long and, separately, for single recent year impact. Metrics with and without self-citations and ratio of citations to citing papers are given.
September 2022 data-update for "Updated science-wide author databases of standardized citation indicators"
Description See file 28oct2022_v5_update_release_notes.txt below for detailed explanation of differences between versions 5 and 4. They both use the same data but version 5 has more appropriate subfield assignment. Citation metrics are widely used and misused.
September 2022 data-update for "Updated science-wide author databases of standardized citation indicators"
Description Citation metrics are widely used and misused. We have created a publicly available database of top-cited scientists that provides standardized information on citations, h-index, co-authorship adjusted hm-index, citations to papers in different authorship positions and a composite indicator (c-score). Separate data are shown for career-long and, separately, for single recent year impact. Metrics with and without self-citations and ratio of citations to citing papers are given.
External validation of a shortened screening tool using individual participant data meta-analysis: A case study of the Patient Health Questionnaire-Dep-4
Harel, D. et al. (2022) External validation of a shortened screening tool using individual participant data meta-analysis: A case study of the Patient Health Questionnaire-Dep-4. Methods, 204, pp. 300-311. (doi: 10.1016/j.ymeth.2021.11.005) (PMID:34780986) Full text not currently available from Enlighten. Abstract Shortened versions of self-reported questionnaires may be used to reduce respondent burden.
Data for "Updated science-wide author databases of standardized citation indicators"
Published: 8 October 2020| Version 2 | DOI: 10.17632/btchxktzyw.2 Contributors: Jeroen Baas, Kevin Boyack, John P.A. Ioannidis Description Citation metrics are widely used and misused. We have created a publicly available database of 100,000 top-scientists that provides standardized information on citations, h-index, co-authorship adjusted hm-index, citations to papers in different authorship positions and a composite indicator. Separate data are shown for career-long and single year impact.
Data for "Updated science-wide author databases of standardized citation indicators"
Published: 08-10-2020| Version 2 | DOI: 10.17632/btchxktzyw.2 Contributors: Jeroen Baas, Kevin Boyack, John P.A. Ioannidis Description Citation metrics are widely used and misused. We have created a publicly available database of 100,000 top-scientists that provides standardized information on citations, h-index, co-authorship adjusted hm-index, citations to papers in different authorship positions and a composite indicator. Separate data are shown for career-long and single year impact.
August 2021 data-update for "Updated science-wide author databases of standardized citation indicators"
Description Citation metrics are widely used and misused. We have created a publicly available database of over 100,000 top-scientists that provides standardized information on citations, h-index, co-authorship adjusted hm-index, citations to papers in different authorship positions and a composite indicator. Separate data are shown for career-long and single year impact. Metrics with and without self-citations and ratio of citations to citing papers are given.
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