OOIR: Observatory of International Research

Papers

(The H4-Index of Journal of Clinical Epidemiology is 48. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-06-01 to 2025-06-01.)

Article	Citations
A review identified challenges distinguishing primary reports of randomized trials for meta-research: A proposal for improved reporting	1676
A general explanation of the counterfactual definition of confounding	1544
Recording harms in randomized controlled trials of behavior change interventions: a scoping review and map of the evidence	223
Corrigendum to ‘Identifying type 1 and 2 diabetes in research datasets where classification biomarkers are unavailable: assessing the accuracy of published approaches’ [Journal of Clinical Epidemiolog	211
Many thanks to our reviewers	180
The construct of certainty of evidence has not been disseminated to systematic reviews and clinical practice guidelines; response to ‘The GRADE Working Group’ et al	163
Empirical evaluation of the methods used in systematic reviews including observational studies and randomized trials	159
Editorial Board	146
Editorial Board	143
Meta-analysis of individual participant data and informed consent: a small step, but important and neglected	137
Advances in methodologies of negative controls: a scoping review	135
Multimorbidity, activity limitation and self-reported health all predict mortality risk, but better measures were required	95
A Bayesian-adaptive decision-theoretic approach can reduce the sample sizes for multiarm exercise oncology trials	95
Statistical robustness of randomized controlled trials in high-impact journals has improved but was low across medical specialties	95
External validation of six COVID-19 prognostic models for predicting mortality risk in older populations in a hospital, primary care, and nursing home setting	91
Interrater reliability of ROB2 – an alternative measure and way of categorization	89
Reporting of funding and conflicts of interest improved from preprints to peer-reviewed publications of biomedical research	88
The inclusion of outcomes in search strategies for Cochrane Reviews: authors’ reply	85
Strong and high-quality evidence synthesis needs Cochrane: a statement of support by the GRADE Guidance Group	84
Types and associated methodologies of overviews of reviews in health care: a methodological study with published examples	84
Predicting COVID-19 prognosis in the ICU remained challenging: external validation in a multinational regional cohort	81
Screening colonoscopy similarly prevented distal and proximal colorectal cancer: a prospective study among 55–69-year-olds	81
Pharmacovigilance studies without a priori hypothesis: systematic review highlights inappropriate multiple testing correction procedures	80
Randomized COVID-19 vaccination rollout can offer direct real-world evidence	75
The walking man approach to interpreting the receiver operating characteristic curve and area under the receiver operating characteristic curve	75

RETRACTED: Part II: a step-by-step guide to latent class analysis	74
GRADE concept paper 2: Concepts for judging certainty on the calibration of prognostic models in a body of validation studies	71
Visualizing the value of diagnostic tests and prediction models, part III. Numerical example with discrete risk groups and miscalibration	70
More than two-dozen prescription drug-based risk scores are available for risk adjustment: A systematic review	70
Potential interactions between digoxin and direct oral anticoagulants: application of cohort & novel case-crossover designs	69
Results reporting for clinical trials led by medical universities and university hospitals in the nordic countries was often missing or delayed	66
Two-decade health-related quality of life and performance on physical function tests in midaged women: findings from a prospective cohort study	64
GRADE guidance 39: using GRADE-ADOLOPMENT to adopt, adapt or create contextualized recommendations from source guidelines and evidence syntheses	60
Librarian involvement in systematic reviews was associated with higher quality of reported search methods: a cross-sectional survey	60
A systematic survey identified methodological issues in studies estimating anchor-based minimal important differences in patient-reported outcomes	59
Harms were detected but not reported in six clinical trials of gabapentin	59
JBI series paper 2: tailored evidence synthesis approaches are required to answer diverse questions: a pragmatic evidence synthesis toolkit from JBI	58
Harms in Systematic Reviews Paper 2: Methods used to assess harms are neglected in systematic reviews of gabapentin	58
Searching two or more databases decreased the risk of missing relevant studies: a metaresearch study	58
Handling missing data in clinical research	57
Integrating Personomics into Precision Medicine	56
Allocation of scarce resources in a pandemic: rapid systematic review update of strategies for policymakers	56
Methodological quality assessment tools for diagnosis and prognosis research: overview and guidance	55
External validation of clinical prediction models: simulation-based sample size calculations were more reliable than rules-of-thumb	55
Editorial Board	54
Priority-setting criteria for clinical practice guideline development on rare genetic neurodevelopmental disorders: a Delphi study within the European Reference Network ITHACA	51
Reconciling contrasting guideline recommendations on red and processed meat for health outcomes	51
Item response theory may account for unequal item weighting and individual-level measurement error in trials that use PROMs: a psychometric sensitivity analysis of the TOPKAT trial	49
The World Conference on Research Integrity 2024	48
Table of Contents	48