David Tovey @davidit - Bluesky Profile

Does questionnaire structure influence response in postal surveys? - PubMed This study tested the effect of questionnaire structure on response, speed of return, and content of answers in a postal survey. All 259 patients aged 30-59 years who consulted with back pain at four ...

In J Clin Epi I've published a couple of papers on questionnaire design pubmed.ncbi.nlm.nih.gov/12589865/ & pubmed.ncbi.nlm.nih.gov/18945586/ plus one on clinically important differences pubmed.ncbi.nlm.nih.gov/16360560/

18.12.2024 21:16 — 👍 0 🔁 1 💬 1 📌 0

Reusing clinical trial data to consolidate and advance medical knowledge While data sharing holds great potential to maximize the value of research and reduce waste, these benefits can only be fully realized if shared data are also effectively reused. Yet data reuse remain...

Reusing clinical trial data to consolidate and advance medical knowledge - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

28.09.2025 12:34 — 👍 4 🔁 2 💬 0 📌 0

For Monday crowd. INSPECT-SR, a tool to help you identify problematic (inc. fraudulent) RCTs, now available.

08.09.2025 07:22 — 👍 17 🔁 9 💬 0 📌 1

Thanks for such a brilliant commentary. Transparency is necessary but not sufficient in many circumstances

14.05.2025 17:19 — 👍 5 🔁 1 💬 1 📌 0

Methods resources for authors new to conducting systematic reviews with network meta-analysis: A Scoping Review To support systematic reviewers new to network meta-analysis (NMA), we (i) identified and described published methods resources for conducting systematic reviews (SRs) with NMA of randomized controlle...

Methods resources for authors new to conducting systematic reviews with network meta-analysis: A Scoping Review - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

22.03.2025 13:25 — 👍 6 🔁 2 💬 0 📌 0

A scoping review identifies comments suggesting modifications to PRISMA-P 2015 To identify, summarise, and analyse published comments relevant to the PRISMA-P (Preferred Items for Reporting Systematic reviews and Meta-Analyses Protocols) 2015 reporting guideline for systematic r...

A scoping review identifies comments suggesting modifications to PRISMA-P 2015 - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

22.03.2025 13:26 — 👍 6 🔁 3 💬 0 📌 0

Priority-setting criteria for clinical practice guideline development on rare genetic neurodevelopmental disorders: a Delphi study within the European Reference Network (ERN) ITHACA The prioritization of clinical practice guideline (CPG) efforts is particularly challenging for rare genetic neurodevelopmental disorders given the large number of (ultra)rare conditions and limited r...

Priority-setting criteria for clinical practice guideline development on rare genetic neurodevelopmental disorders: a Delphi study within the European Reference Network (ERN) ITHACA - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

22.03.2025 13:27 — 👍 7 🔁 4 💬 0 📌 0

Disappointing but perhaps not surprising

24.03.2025 09:25 — 👍 5 🔁 2 💬 0 📌 0

Editorial, April 2025 Drafting the monthly round-up of noteworthy manuscripts to be published in the corresponding issue of the Journal of Clinical Epidemiology (JCE) is both a privilege and pleasure. The task includes rer...

Our message is one of hope, and we see this as a time of opportunity for leaders in the field to stand up for sound methods and high-quality science.

Editorial, April 2025
www.jclinepi.com/article/S089...

20.03.2025 15:59 — 👍 3 🔁 2 💬 0 📌 0

New publication led by @proflouisemarston.bsky.social using multiple imputation to target a hypothetical estimand in a pandemic restriction-free world for a trial in
schizophrenia - demonstrating the potential impact of the pandemic on the trial results

18.03.2025 08:27 — 👍 8 🔁 6 💬 1 📌 0

Statistical strategies to analyze local control after radiotherapy Historically, local progression, an outcome of effectiveness in curative radiotherapy, has not always been statistically analyzed with the same method. This article aims to elucidate the validity and ...

#keyconcepts Statistical strategies to analyze local control after radiotherapy - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

17.03.2025 20:25 — 👍 2 🔁 2 💬 0 📌 0

Calculating Follow-Up Completeness: a comparison of multiple methods under different simulated scenarios and a use-case Completeness of follow-up is a crucial aspect of data quality in cohort studies and clinical trials. This study aims to provide an overview of different methods to calculate follow-up completeness. Ad...

Calculating Follow-Up Completeness: a comparison of multiple methods under different simulated scenarios and a use-case - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

17.03.2025 20:26 — 👍 4 🔁 1 💬 0 📌 0

Methods resources for authors new to conducting systematic reviews with network meta-analysis: A Scoping Review To support systematic reviewers new to network meta-analysis (NMA), we (i) identified and described published methods resources for conducting systematic reviews (SRs) with NMA of randomized controlle...

Methods resources for authors new to conducting systematic reviews with network meta-analysis: A Scoping Review - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

17.03.2025 20:26 — 👍 5 🔁 2 💬 0 📌 0

A scoping review identifies comments suggesting modifications to PRISMA-P 2015 To identify, summarise, and analyse published comments relevant to the PRISMA-P (Preferred Items for Reporting Systematic reviews and Meta-Analyses Protocols) 2015 reporting guideline for systematic r...

A scoping review identifies comments suggesting modifications to PRISMA-P 2015 - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

17.03.2025 20:27 — 👍 4 🔁 1 💬 0 📌 0

Great to see journals based in the US and elsewhere standing up for scientific integrity.

22.02.2025 13:30 — 👍 5 🔁 1 💬 0 📌 0

Corrigendum to ʻMethodological systematic review recommends improvements to conduct and reporting when meta-analyzing interrupted time series studies’. Journal of Clinical Epidemiology 145 (2022) 55–6... In the original article, the supplementary file included our revisions as tracked changes arising from the peer-review process. Attached is an updated supplementary file where the tracked-changes have...

Corrigendum to ʻMethodological systematic review recommends improvements to conduct and reporting when meta-analyzing interrupted time series studies’. Journal of Clinical Epidemiology 145 (2022) 55–69 - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

21.02.2025 13:40 — 👍 3 🔁 3 💬 0 📌 0

So sorry to read this Richard. All best wishes to you and your family

14.02.2025 13:30 — 👍 1 🔁 0 💬 0 📌 0

Thanks for this notifcation Florian but I feel obliged to point out that @jdwilko.bsky.social was very much the first and lead author!

13.02.2025 09:57 — 👍 2 🔁 0 💬 1 📌 0

Delighted to see our @jclinepi.bsky.social commentary on redundant publication and potential research waste in the field of reporting guidelines is now fully online and accessible for 50 days via this link: authors.elsevier.com/c/1kbcJ3BcJQ...

13.02.2025 09:53 — 👍 5 🔁 2 💬 0 📌 0

You wait ages and then two arrive at once: reporting guidelines shouldn’t be like buses

You wait ages and then two arrive at once: reporting guidelines shouldn’t be like buses - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

02.02.2025 21:06 — 👍 2 🔁 3 💬 0 📌 1

Risk of bias assessment tools often addressed items not related to risk of bias and used numerical scores We aimed to determine whether the existing risk of bias assessment tools addressed constructs other than risk of bias or internal validity, and whether they used numerical scores to express quality, w...

Risk of bias assessment tools often addressed items not related to risk of bias and used numerical scores - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

02.02.2025 21:07 — 👍 14 🔁 2 💬 0 📌 0

Scoping review of registration of observational studies finds inadequate registration policies, increased registration, and a debate converging towards pro-registration We aimed to examine a) the policies of national and international clinical trial registries regarding observational studies; b) the time-trends of observational study registration; c) the published ar...

Scoping review of registration of observational studies finds inadequate registration policies, increased registration, and a debate converging towards pro-registration - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

05.02.2025 19:54 — 👍 1 🔁 1 💬 0 📌 0

Heterogeneity across outcomes in clinical trials on sodium-glucose cotransporter 2 (SGLT2) inhibitors in chronic heart failure: cross-sectional study This study aimed to analyze the outcomes, outcome domains, and prevalence of the use of clinical outcome endpoints (COE) in clinical trials on sodium-glucose cotransporter 2 (SGLT2) inhibitors for chr...

Heterogeneity across outcomes in clinical trials on sodium-glucose cotransporter 2 (SGLT2) inhibitors in chronic heart failure: cross-sectional study - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

05.02.2025 19:55 — 👍 2 🔁 1 💬 0 📌 0

Visualizing the Value of Diagnostic Tests and Prediction Models, Part I. Introduction and Expected Gain in Utility as a Function of Pre-Test Probability Expected gain in utility (EGU) and EGU graphs are used to evaluate diagnostic tests and risk prediction models. EGU is the expected gain or loss in utility of treating or testing relative to not treat...

Visualizing the Value of Diagnostic Tests and Prediction Models, Part I. Introduction and Expected Gain in Utility as a Function of Pre-Test Probability - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

05.02.2025 19:56 — 👍 3 🔁 2 💬 0 📌 0

Visualizing the Value of Diagnostic Tests and Prediction Models, Part II. Net Benefit Graphs: Net Benefit as a Function of the Exchange Rate Net benefit (NB) calculations and NB graphs are used to evaluate diagnostic tests and risk prediction models. NB is the expected gain or loss in utility of treating or testing relative to not treating...

Visualizing the Value of Diagnostic Tests and Prediction Models, Part II. Net Benefit Graphs: Net Benefit as a Function of the Exchange Rate - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

05.02.2025 19:57 — 👍 2 🔁 1 💬 0 📌 0

Visualizing the Value of Diagnostic Tests and Prediction Models, Part III. Numerical Example with Discrete Risk Groups and Miscalibration Calculating net benefit (NB) is a logical approach to quantifying the value of a diagnostic test or risk prediction model. The harm of the test and of treating unnecessarily because of the test is sub...

Visualizing the Value of Diagnostic Tests and Prediction Models, Part III. Numerical Example with Discrete Risk Groups and Miscalibration - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

05.02.2025 19:57 — 👍 1 🔁 1 💬 0 📌 0

Pain and Physical Function are common core domains across 40 core outcome sets of musculoskeletal conditions: A systematic review To determine common domains across existing musculoskeletal COSs. Secondary aims were to assess the development quality of existing musculoskeletal COSs and whether development quality and patient par...

Pain and Physical Function are common core domains across 40 core outcome sets of musculoskeletal conditions: A systematic review - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

05.02.2025 19:58 — 👍 2 🔁 1 💬 0 📌 0

Meta-analysis of individual participant data and informed consent: A small step, but important and neglected •Data sharing needs to be considered at the very beginning of planning trials and drafting informed consent forms.•De-identified individual participant data meta-analyses (IPD-MA) conduct and reportin...

Meta-analysis of individual participant data and informed consent: A small step, but important and neglected - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

05.02.2025 19:58 — 👍 1 🔁 1 💬 0 📌 0

Supplementary databases increased literature search coverage beyond PubMed and Embase In health sciences, comprehensive literature searches are crucial for ensuring the accuracy and completeness of systematic reviews. Relying on only a few databases can lead to the omission of relevant...

Supplementary databases increased literature search coverage beyond PubMed and Embase - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

05.02.2025 19:59 — 👍 2 🔁 2 💬 0 📌 0

Massive covidization and subsequent decovidization of the scientific literature involved 2 million authors We aimed to examine the growth trajectory and impact of COVID-19-related papers in the scientific literature and how the scientific workforce engaged in this work.

Massive covidization and subsequent decovidization of the scientific literature involved 2 million authors - Journal of Clinical Epidemiology www.jclinepi.com/article/S089...

05.02.2025 20:01 — 👍 12 🔁 7 💬 0 📌 1

David Tovey

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