Schumacher, Martin

(as bibtex)

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Articles (90)

• Schumacher, Martin, Herrnböck, Anne-Sophie, Binder, Nadine. Estimating hazard ratios in cohort data with missing disease information due to death. Biometrical Journal 2017. 59:251-269
• Schumacher, Martin. Norman Edward Breslow–Key figure in the foundation of modern biostatistics. Biometrical Journal 2017. 59:399-404
• Allignol, Arthur, Schumacher, Martin, Winterfeld, Ursula, Beyersmann, Jan, Friedrich, Sarah. Nonparametric estimation of pregnancy outcome probabilities. The Annals of Applied Statistics 2017. 11:840-867
• Wolkewitz, Martin, Alvarez-Lerma, Francisco, Olaechea-Astigarraga, Pedro, Palomar-Martinez, Mercedes, Schumacher, Martin, Cube, Maja von. A case-cohort approach for multi-state models in hospital epidemiology. Statistics in Medicine 2017. 36:481-495
• consortium, on behalf of the COMBACTE-NET, Schumacher, Martin, Wolkewitz, Martin, Sommer, Harriet. The time-dependent “cure-death” model investigating two equally important endpoints simultaneously in trials treating high-risk patients with resistant pathogens. Pharmaceutical Statistics 2017. 16:267-279
• Schwarzer, Guido, Koller, Michael, Schumacher, Martin, Beyersmann, Jan, Bonofiglio, Federico. Meta-analysis for aggregated survival data with competing risks: a parametric approach using cumulative incidence functions. Research Synthesis Methods 2016. 7:282-293
• Schumacher, Martin, Proctor, Tanja. Analysing adverse events by time-to-event models: the CLEOPATRA study. Pharmaceutical Statistics 2016. 15:-
• Schumacher, Martin, Nieters, Alexandra, Binder, Harald, Hieke, Stefanie. minPtest: a resampling based gene region-level testing procedure for genetic case-control studies. Computational Statistics 2014. 29:51-63
• Schumacher, Martin. Probability estimation and machine learning—Editorial. Biometrical Journal 2014. 56:-
• Binder, Harald, Schumacher, Martin, Stampf, Susanne, Porzelius, Christine, Reiser, Veronika. Can matching improve the performance of boosting for identifying important genes in observational studies?. Computational Statistics 2013. 28:37-49
• Yu, Changhong, Schumacher, Martin, Kattan, Michael W., Gerds, Thomas A.. Estimating a time-dependent concordance index for survival prediction models with covariate dependent censoring. Statistics in Medicine 2013. 32:2173-2184
• Beyersmann, Jan, Schumacher, Martin, Hieke, Stefanie, Termini, Susanna Di. Nonparametric inference for the cumulative incidence function of a competing risk, with an emphasis on confidence bands in the presence of left-truncation. Biometrical Journal 2012. 54:568-578
• Victor, Norbert, Seldrup, Jørgen, Schumacher, Martin, Nakas, Christos T, Kieser, Meinhard, Friede, Tim, Edler, Lutz, Gerlinger, Christoph. Considerations on what constitutes a ‘qualified statistician’ in regulatory guidelines. Statistics in Medicine 2012. 31:-
• Muller, Tina, Mueller, Tina, Binder, Harald, Müller, Tina, Schwender, Holger, Golka, Klaus, Steffens, Michael, Hengstler, Jan G., Ickstadt, Katja, Schumacher, Martin. Cluster-localized sparse logistic regression for SNP data. Statistical Applications in Genetics and Molecular Biology 2012. 11:NA-NA
• Schumacher, Martin, Henderson, Robin. Clinical epidemiology and individualized medicine. Biometrical Journal 2011. 53:167-169
• Porzelius, Christine, Schumacher, Martin, Binder, Harald. The benefit of data-based model complexity selection via prediction error curves in time-to-event data. Computational Statistics 2011. 26:293-302
• Binder, Harald, Schumacher, Martin, Beyersmann, Jan, Schoop, Rotraut. Quantifying the predictive accuracy of time-to-event models in the presence of competing risks. Biometrical Journal 2011. 53:88-112
• Schumacher, Martin, Grambauer, Nadine, Allignol, Arthur, Wolkewitz, Martin, Beyersmann, Jan. Application of multistate models in hospital epidemiology: Advances and challenges. Biometrical Journal 2011. 53:332-350
• Graf, Erika, Schumacher, Martin, Schoop, Rotraut. Measures of prediction error for survival data with longitudinal covariates. Biometrical Journal 2011. 53:275-293
• Schumacher, Martin, Porzelius, Christine, Binder, Harald. An overview of techniques for linking high-dimensional molecular data to time-to-event endpoints by risk prediction models. Biometrical Journal 2011. 53:170-189
• Allignol, Arthur, Schumacher, Martin, Beyersmann, Jan. Estimating summary functionals in multistate models with an application to hospital infection data. Computational Statistics 2011. 26:181-197
• Schumacher, Martin, Royston, Patrick, Sauerbrei, Willi. Comments on ‘Performance of using multiple stepwise algorithms for variable selection’ by Ryan E. Wiegand, Statistics in Medicine 2010; 29:1647–1659. Statistics in Medicine 2011. 30:892-894
• Allignol, Arthur, Schumacher, Martin, Beyersmann, Jan. Empirical transition matrix of multi-state models: The etm package. Journal of Statistical Software 2011. 38:NA-NA
• Wolkewitz, Martin, Allignol, Arthur, Schumacher, Martin, Beyersmann, Jan. Two pitfalls in survival analyses of time-dependent exposure: A case study in a cohort of Oscar nominees. The American Statistician 2010. 64:205-211
• Allignol, Arthur, Schumacher, Martin, Beyersmann, Jan. A note on variance estimation of the Aalen-Johansen estimator of the cumulative incidence function in competing risks, with a view towards left-truncated data. Biometrical Journal 2010. 52:126-137
• Schumacher, Martin, Carpenter, James, Schwarzer, Guido, Rücker, Gerta. Comments on ‘Empirical vs natural weighting in random effects meta-analysis’ by JJ Shuster, Statistics in Medicine 2009; 26, Published online, DOI: 10.1002/sim.3607. Statistics in Medicine 2010. 29:2963-2965
• Schumacher, Martin, Rücker, Gerta. Summary ROC curve based on a weighted Youden index for selecting an optimal cutpoint in meta-analysis of diagnostic accuracy. Statistics in Medicine 2010. 29:-
• Beyersmann, Jan, Schumacher, Martin, Allignol, Arthur. A Note on Variance Estimation of the Aalen–Johansen Estimator of the Cumulative Incidence Function in Competing Risks, with a View towards Left-Truncated Data. Biometrical Journal 2010. 52:126-137
• Schumacher, Martin, Eckert, Cornel, Höfling, Holger. “Classification of Therapy Resistance Based on Longitudinal Biomarker Profiles” by M. Kohlmann, L. Held and V. P. Grunert Biometrical Journal (2009) 51(4):610–626 Article: http://dx.doi.org/10.1002/bimj.200800157. Authors' reply: http://dx.doi.org/10.1002/bimj.201000119. Biometrical Journal 2010. 52:562-566
• Grambauer, Nadine, Schumacher, Martin, Beyersmann, Jan. Proportional subdistribution hazards modeling offers a summary analysis, even if misspecified. Statistics in Medicine 2010. 29:875-884
• Stampf, Susanne, Graf, Erika, Schmoor, Claudia, Schumacher, Martin. Estimators and confidence intervals for the marginal odds ratio using logistic regression and propensity score stratification. Statistics in Medicine 2010. 29:760-769
• Porzelius, Christine, Schumacher, Martin, Binder, Harald. A general, prediction error-based criterion for selecting model complexity for high-dimensional survival models. Statistics in Medicine 2010. 29:830-838
• Latouche, Aurelien, Beyersmann, Jan, Latouche, Aurélien, Buchholz, Anika, Schumacher, Martin. Simulating competing risks data in survival analysis. Statistics in Medicine 2009. 28:956-971
• Graw, Frederik, Gerds, Thomas A., Schumacher, Martin. On pseudo-values for regression analysis in competing risks models. Lifetime Data Analysis 2009. 15:241-255
• Augustin, Nicole H., Musio, Monica, von Wilpert, Klaus, Kublin, Edgar, Wood, Simon N., Schumacher, Martin. Modeling Spatiotemporal Forest Health Monitoring Data. Journal of the American Statistical Association 2009. 104:899-911
• Binder, Harald, Schumacher, Martin. Adapting Prediction Error Estimates for Biased Complexity Selection in High-Dimensional Bootstrap Samples. Statistical Applications in Genetics and Molecular Biology 2008. 7:NA-NA
• Gerds, Thomas A., Cai, Tianxi, Schumacher, Martin. The performance of risk prediction models. Biometrical Journal 2008. 50:457-479
• Binder, Harald, Schumacher, Martin. Adapting prediction error estimates for biased complexity selection in high-dimensional bootstrap samples. Statistical Applications in Genetics and Molecular Biology 2008. 7:N/A-N/A
• Beyersmann, Jan, Wolkewitz, Martin, Schumacher, Martin. The impact of time-dependent bias in proportional hazards modelling. Statistics in Medicine 2008. 27:6439-6454
• Schumacher, Martin, Graf, Erika. Comments on ‘The performance of different propensity score methods for estimating marginal odds ratios’ by Peter C. Austin, Statistics in Medicine 2007; 26(16):3078–3094. Statistics in Medicine 2008. 27:3915-3917
• Graf, Erika, Schumacher, Martin. Comments on ``The performance of different propensity score methods for estimating marginal odds ratios'' (2007V26 p3078-3094)(Pkg: p3915-3920). Statistics in Medicine 2008. 27:3915-3917
• Beyersmann, Jan, Schumacher, Martin. A note on nonparametric quantile inference for competing risks and more complex multistate models. Biometrika 2008. 95:1006-1008
• Schumacher, Martin, Brunner, Edgar. Year 2006 – Report. Biometrical Journal 2007. 49:173-175
• Schumacher, Martin, Brunner, Edgar. Editorial: Biom. J. 5/2007. Biometrical Journal 2007. 49:-
• Beyersmann, Jan, Schumacher, Martin. Comment on ``Misspecified regression model for the subdistribution hazard of a competing risk'' (2006V5 p965-974). Statistics in Medicine 2007. 26:1649-1651
• Beyersmann, Jan, Dettenkofer, Markus, Bertz, Hartmut, Schumacher, Martin. A competing risks analysis of bloodstream infection after stem-cell transplantation using subdistribution hazards and cause-specific hazards. Statistics in Medicine 2007. 26:5360-5369
• Gerds, Thomas A., Schumacher, Martin. Efron-Type Measures of Prediction Error for Survival Analysis. Biometrics 2007. 63:1283-1287
• Schumacher, Martin, Brunner, Edgar. Year 2005 – Report. Biometrical Journal 2006. 48:189-192
• Gerds, Thomas A., Schumacher, Martin. Consistent estimation of the expected Brier score in general survival models with right-censored event times. Biometrical Journal 2006. 48:1029-1040
• Augustin, Nicole, Sauerbrei, Willi, Schumacher, Martin. The practical utility of incorporating model selection uncertainty into prognostic models for survival data. Statistical Modelling: An International Journal 2005. 5:95-118
• Schumacher, Martin, Brunner, Edgar. Year 2004 – Report. Biometrical Journal 2005. 47:113-118
• Schumacher, Martin. Editorial: Biom. J. 6/2005. Biometrical Journal 2005. 47:-
• Schumacher, Martin, Brunner, Edgar. Editorial: Biom. J. 1/2005. Biometrical Journal 2005. 47:-
• Schumacher, Martin, Sauerbrei, Willi, Holländer, Norbert. Confidence intervals for the effect of a prognostic factor after selection of an ‘optimal’ cutpoint. Statistics in Medicine 2004. 23:1701-1713
• Hollander, Norbert, Hollaender, Norbert, Holländer, Norbert, Sauerbrei, Willi, Schumacher, Martin. Confidence intervals for the effect of a prognostic factor after selection of an 'optimal' cutpoint. Statistics in Medicine 2004. 23:1701-1713
• Wehberg, Sonja, Schumacher, Martin. A comparison of nonparametric error rate estimation methods in classification problems. Biometrical Journal 2004. 46:35-47
• Schumacher, Martin, Brunner, Edgar. Editorial: Biom. J. 1/2004. Biometrical Journal 2004. 46:-
• Lausen, Berthold, Hothorn, Torsten, Bretz, Frank, Schumacher, Martin. Assessment of optimal selected prognostic factors. Biometrical Journal 2004. 46:364-374
• Lausen, Berthold, Lerche, Rudolf, Schumacher, Martin. Maximally selected rank statistics for dose-response problems. Biometrical Journal 2002. 44:131-147
• Schwarzer, Guido, Antes, Gerd, Schumacher, Martin. Inflation of type I error rate in two statistical tests for the detection of publication bias in meta-analyses with binary outcomes. Statistics in Medicine 2002. 21:2465-2477
• Schmoor, Claudia, Sauerbrei, Willi, Schumacher, Martin. Sample size considerations for the evaluation of prognostic factors in survival analysis. Statistics in Medicine 2000. 19:441-452
• Schwarzer, Guido, Vach, W., Schumacher, Martin. On the misuses of artificial neural networks for prognostic and diagnostic classification in oncology. Statistics in Medicine 2000. 19:541-561
• Graf, Erika, Schmoor, Claudia, Sauerbrei, Willi, Schumacher, Martin. Assessment and comparison of prognostic classification schemes for survival data. Statistics in Medicine 1999. 18:2529-2545
• Schumacher, Martin. The Freiburg Center of Data Analysis and Model Building (FDM): An interim report about an interdisciplinary cooperation.
• Hollander, Norbert, Hollaender, Norbert, Schumacher, Martin, Holländer, Norbert, Sauerbrei, Willi. Resampling and cross-validation techniques: A tool to reduce bias caused by model building?. Statistics in Medicine 1997. 16:2813-2827
• Schmoor, Claudia, Schumacher, Martin. Effects of covariate omission and categorization when analysing randomized trials with the Cox model. Statistics in Medicine 1997. 16:225-237
• Hollander, Norbert, Hollaender, Norbert, Schumacher, Martin, Holländer, Norbert, Sauerbrei, Willi. Reduction of bias caused by model building.
• Schmoor, Claudia, Olschewski, Manfred, Schumacher, Martin. Randomized and non-randomized patients in clinical trials: Experiences with comprehensive cohort studies. Statistics in Medicine 1996. 15:263-271
• Lausen, Berthold, Schumacher, Martin. Evaluating the effect of optimized cutoff values in the assessment of prognostic factors. Computational Statistics & Data Analysis 1996. 21:307-326
• Rossner, Reinhard, Schumacher, Martin, Roßner, Reinhard, Vach, W.. Neural networks and logistic regression: Part I. Computational Statistics & Data Analysis 1996. 21:661-682
• Rossner, Reinhard, Vach, W., Roßner, Reinhard, Schumacher, Martin. Neural networks and logistic regression: Part II. Computational Statistics & Data Analysis 1996. 21:683-701
• Schulgen, Gabi, Schumacher, Martin. Estimation of prolongation of hospital stay attributable to nosocomial infections: New approaches based on multistate models. Lifetime Data Analysis 1996. 2:219-240
• Graf, Erika, Schumacher, Martin. An investigation on measures of explained variation in survival analysis. The Statistician: Journal of the Institute of Statisticians 1995. 44:497-507
• Olsen, Jorgen H., Olsen, Joergen H., Schulgen, Gabi, Lausen, Berthold, Olsen, Jørgen H., Schumacher, Martin. Outcome-oriented cutpoints in analysis of quantitative exposures. American Journal of Epidemiology 1994. 140:172-184
• Schumacher, Martin, Ulm, Kurt, Schmoor, Claudia. Comparison of the cox model and the regression tree procedure in analysing a randomized clinical trial†. Statistics in Medicine 1993. 12:2351-2366
• Vach, W., Schumacher, Martin. Logistic regression with incompletely observed categorical covariates: A comparison of three approaches. Biometrika 1993. 80:353-362
• Schmoor, Claudia, Ulm, Kurt, Schumacher, Martin. Comparison of the Cox model and the regression tree procedure in analysing a randomized clinical trial. Statistics in Medicine 1993. 12:2351-2366
• Olschewski, Manfred, Schumacher, Martin, Davis, Kathryn B.. Analysis of randomized and nonrandomized patients in clinical trials using the comprehensive cohort follow-up study design. Controlled Clinical Trials 1992. 13:226-239
• Sauerbrei, Willi, Schumacher, Martin. A bootstrap resampling procedure for model building: Application to the Cox regression model. Statistics in Medicine 1992. 11:2093-2109
• Lausen, Berthold, Schumacher, Martin. Maximally selected rank statistics. Biometrics 1992. 48:73-85
• Schumacher, Martin, Sauerbrei, Willi. A bootstrap resampling procedure for model building: Application to the cox regression model†. Statistics in Medicine 1992. 11:2093-2109
• Schumacher, Martin, Olschewski, Manfred, Schulgen, Gabi. Assessment of quality of life in clinical trials. Statistics in Medicine 1991. 10:1915-1930
• Holtbrugge, Werner, Holtbruegge, Werner, Holtbrügge, Werner, Schumacher, Martin. A comparison of regression models for the analysis of ordered categorical data. Applied Statistics 1991. 40:249-259
• Gruger, Jens, Grueger, Jens, Grüger, Jens, Kay, Richard, Schumacher, Martin. The validity of inferences based on incomplete observations in disease state models. Biometrics 1991. 47:595-605
• Kubler, Jurgen, Kuebler, Juergen, Kübler, Jürgen, Schumacher, Martin. Survival time models for analysing drug combination treatments. Statistics in Medicine 1990. 9:1527-1539
• Schumacher, Martin, Olschewski, Manfred, Schmoor, Claudia. The impact of heterogeneity on the comparison of survival times. Statistics in Medicine 1987. 6:773-784
• Gill, Richard, Schumacher, Martin. A simple test of the proportional hazards assumption. Biometrika 1987. 74:289-300
• DeBoer, Frank, Schumacher, Martin. Some algorithms for the distributions of nonparametric two-sample tests -- Considerations on complexity and empirical investigations. Part 2: Rank tests. Statistical Software Newslette 1986. 12:28-33
• Kay, Richard, Schumacher, Martin. Unbiased assessment of treatment effects on disease recurrence and survival in clinical trials. Statistics in Medicine 1983. 2:41-58
• Schumacher, Martin. Application of Cramer-von-Mises-and-Kolmogorov-Smirnov-type tests to randomly censored data (German). EDV in Medizin und Biologie 1982. 13:83-86