OOIR: Observatory of International Research

Papers

(The H4-Index of BMC Medical Research Methodology is 39. 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 2021-04-01 to 2025-04-01.)

Article	Citations
The Preventiometer - reliability of a cardiovascular multi-device measurement platform and its measurement agreement with a cohort study	386
Assessment of the E-value in the presence of bias amplification: a simulation study	369
Understanding facilitators of research participation among adults with self-reported chronic pain – a survey examining hypothetical research participation	262
Tailored approach to participant recruitment and retention to maximize health equity in pediatric cancer research	210
Dynamic prediction based on variability of a longitudinal biomarker	162
Application of causal forests to randomised controlled trial data to identify heterogeneous treatment effects: a case study	152
Handling of missing component information for common composite score outcomes used in axial spondyloarthritis research when complete-case analysis is unbiased	150
A discrete-time split-state framework for multi-state modeling with application to describing the course of heart disease	108
A data-driven pipeline to extract potential adverse drug reactions through prescription, procedures and medical diagnoses analysis: application to a cohort study of 2,010 patients taking hydroxychloro	106
crossnma: An R package to synthesize cross-design evidence and cross-format data using network meta-analysis and network meta-regression	96
Do authors of systematic reviews of epidemiological observational studies assess the methodologies of the included primary studies? An empirical examination of methodological tool use in the literatur	96
Impact of different unconditional monetary incentives on survey response rates in men with prostate cancer: a 2-arm randomised trial	81
Spatial data analysis of malnutrition among children under-five years in Ethiopia	81
Poor reporting quality and high proportion of missing data in economic evaluations alongside pragmatic trials: a cross-sectional survey	76
How likely is unmeasured confounding to explain meta-analysis-derived associations between alcohol, other substances, and mood-related conditions with HIV risk behaviors?	76
A clinical phase I dose-finding design with adaptive shrinking boundaries for drug combination trials	74
Dementia risk prediction in individuals with mild cognitive impairment: a comparison of Cox regression and machine learning models	72
Adaptive designs in critical care trials: a simulation study	65
The Danish Drowning Cohort: Utstein-style data from fatal and non-fatal drowning incidents in Denmark	65
Standard of care for COVID-19 in randomized clinical trials registered in trial registries and published in preprint servers and scholarly journals: a cross-sectional study	64
Comparing statistical methods in assessing the prognostic effect of biomarker variability on time-to-event clinical outcomes	63
Investigating factors affecting the interval between a burn and the start of treatment using data mining methods and logistic regression	58
An improved method for the effect estimation of the intermediate event on the outcome based on the susceptible pre-identification	54
Clinical research activities during COVID-19: the point of view of a promoter of academic clinical trials	53
Comparison of statistical methods for the analysis of recurrent adverse events in the presence of non-proportional hazards and unobserved heterogeneity: a simulation study	53

Interactive molecular causal networks of hypertension using a fast machine learning algorithm MRdualPC	52
Methodological identification of anomalies episodes in ECG streams: a systematic mapping study	52
Systematic review and meta analysis of differential attrition between active and control arms in randomized controlled trials of lifestyle interventions in chronic disease	50
An investigation of the constancy of effect in Cochrane systematic reviews in context with the assumptions for noninferiority trials	50
Neutral theory: applicability and neutrality of using generic health-related quality of life tools in diseases or conditions where specific tools are available	47
Methodological assessment of systematic reviews of in-vitro dental studies	47
Comparison of reference distributions acquired by direct and indirect sampling techniques: exemplified with the Pediatric Reference Interval in China (PRINCE) study	44
Implementing multiple imputations for addressing missing data in multireader multicase design studies	43
Reporting and communication of sample size calculations in adaptive clinical trials: a review of trial protocols and grant applications	42
Recruitment methods and yield rates in a clinical trial of physical exercise for older adults with hypertension—HAEL Study: a study within a trial	42
Evaluation of multiple imputation approaches for handling missing covariate information in a case-cohort study with a binary outcome	42
Addressing misclassification bias in vaccine effectiveness studies with an application to Covid-19	40
Joint analysis of PK and immunogenicity outcomes using factorization model − a powerful approach for PK similarity study	40
A gated group sequential design for seamless Phase II/III trial with subpopulation selection	39
Should multiple imputation be stratified by exposure group when estimating causal effects via outcome regression in observational studies?	39
Safety analysis of new medications in clinical trials: a simulation study to assess the differences between cause-specific and subdistribution frameworks in the presence of competing events	39
Longitudinal mediation analysis with multilevel and latent growth models: a separable effects causal approach	39
Modular literature review: a novel systematic search and review method to support priority setting in health policy and practice	39