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New open access tutorial article published in Statistics in Medicine: Using fractional polynomials and restricted cubic splines to model non-proportional hazards or time-varying covariate effects in the Cox regression model. onlinelibrary.wiley.com/doi/10.1002/si…

New paper on assessing the calibration of competing risk regression models: rdcu.be/cFbpf with Hein Putter , Daniele Giardiello, and David van Klaveren.

New open access paper with Ewout Steyerberg, Frank Harrell , Douglas Lee using empirical analyses and simulations to compare machine learning with statistical models for predicting discharge blood pressure in patients hospitalized with AMI or CHF: nature.com/articles/s4159…

The iterative bisection procedure: newly-published open access paper describing a useful tool to determine parameter values for Monte Carlo simulations: link.springer.com/epdf/10.1186/s… #Statstwitter

New paper in Statistics in Medicine: how to impute variables that are used in inclusion/exclusion criteria and that are independent variables in the analysis model of scientific interest: onlinelibrary.wiley.com/doi/epdf/10.10… with @DGiardiello_ and Stef van Buuren. #statstwitter

New open access paper comparing target estimands for five sets of propensity score-based weights: ATE weights, ATT weights, overlap weights, matching weights, and entropy weights: onlinelibrary.wiley.com/doi/10.1002/pd… #statstwitter

New open access paper in SMMR comparing predictive mean matching (PMM) with logistic regression for imputing missing binary variables when using multiple imputation: journals.sagepub.com/doi/10.1177/09…. PMM had comparable performance, but required less processing time.

New open access paper in Statistical Methods in Medical Research on the performance of marginal structural models (MSMs) for estimating risk differences and relative risks using weighted GLMs: journals.sagepub.com/doi/epub/10.11…. #propensityscore #statstwitter

Just published in JAMA: an introductory tutorial: Accounting for Competing Risks in Clinical Research with ⁦Hein Putter⁩ and Maria Ibrahim. jamanetwork.com/journals/jama/…

New paper on the effect of number of clusters and magnitude of within‐cluster homogeneity in outcomes on the performance of four variance estimators for a marginal multivariable Cox regression model fit to clustered data in observational research onlinelibrary.wiley.com/doi/10.1002/si…

New open access paper on multiple imputation with competing risk outcomes using complex clinically realistic simulations: link.springer.com/epdf/10.1007/s…

Using Multilevel Models and Generalized Estimating Equation Models to Account for Clustering in Neurology Clinical Research | Neurology. Open access tutorial article on statistical methods for the analysis of multilevel and clustered data. neurology.org/doi/10.1212/WN…

Evaluating the median p-value method for assessing the statistical significance of tests when using multiple imputation. New open access paper published in Journal of Applied Statistics. #stats #statstwitter tandfonline.com/doi/full/10.10…

A Comparison of Variance Estimators for Logistic Regression Models Estimated Using Generalized Estimating Equations (GEE) in the Context of Observational Health Services Research. New open access paper. #stats #statstwitter onlinelibrary.wiley.com/doi/10.1002/si…

The relative data hungriness of unpenalized and penalized logistic regression and ensemble-based machine learning methods: the case of calibration | Diagnostic and Prognostic Research. New open access paper. #stats #statstwitter. diagnprognres.biomedcentral.com/articles/10.11…

New open-access paper: Inverse Probability of Treatment Weighting Using the Propensity Score With Competing Risks in Survival Analysis. #stats #statstwitter onlinelibrary.wiley.com/doi/10.1002/si…

I’ll be posting on Bluesky going forward: @stats-research.bsky.social

Open access paper on a Variance Estimator for Marginal Cox Regression Models Fit to Non-Nested Multilevel or Clustered Data. #multilevel #statistics #clustereddata #survivalanalysis onlinelibrary.wiley.com/doi/10.1002/si…

Open access paper on evaluating the median p-value method for assessing the statistical significance of tests when using multiple imputation tandfonline.com/doi/full/10.10…