Martin Schumacher

Author PubWeight™ 167.92‹?›

Top papers

Rank Title Journal Year PubWeight™‹?›
1 Recombinant human erythropoiesis-stimulating agents and mortality in patients with cancer: a meta-analysis of randomised trials. Lancet 2009 6.92
2 Clinical outcomes of health-care-associated infections and antimicrobial resistance in patients admitted to European intensive-care units: a cohort study. Lancet Infect Dis 2010 3.23
3 Undue reliance on I(2) in assessing heterogeneity may mislead. BMC Med Res Methodol 2008 3.06
4 Twenty years experience with an ileal orthotopic low pressure bladder substitute--lessons to be learned. J Urol 2006 2.82
5 Nerve sparing open radical retropubic prostatectomy--does it have an impact on urinary continence? J Urol 2006 2.65
6 Consistent estimation of the expected Brier score in general survival models with right-censored event times. Biom J 2006 2.55
7 The performance of risk prediction models. Biom J 2008 2.00
8 Risk factors for the development of nosocomial pneumonia and mortality on intensive care units: application of competing risks models. Crit Care 2008 1.98
9 Proportional subdistribution hazards modeling offers a summary analysis, even if misspecified. Stat Med 2010 1.94
10 A European study of HLA-B in Stevens-Johnson syndrome and toxic epidermal necrolysis related to five high-risk drugs. Pharmacogenet Genomics 2008 1.92
11 How many infections are caused by patient-to-patient transmission in intensive care units? Crit Care Med 2005 1.87
12 Allowing for mandatory covariates in boosting estimation of sparse high-dimensional survival models. BMC Bioinformatics 2008 1.78
13 Transvenous treatment of carotid cavernous and dural arteriovenous fistulae: results for 31 patients and review of the literature. Neurosurgery 2003 1.76
14 Prognostic and predictive effects of immunohistochemical factors in high-risk primary breast cancer patients. Clin Cancer Res 2006 1.75
15 Prospective population-based study of viral lower respiratory tract infections in children under 3 years of age (the PRI.DE study). Eur J Pediatr 2004 1.72
16 Modeling the effect of time-dependent exposure on intensive care unit mortality. Intensive Care Med 2009 1.66
17 Simulating competing risks data in survival analysis. Stat Med 2009 1.62
18 On pseudo-values for regression analysis in competing risks models. Lifetime Data Anal 2008 1.60
19 Circadian incidence of non-inflammatory retinal artery occlusions. Graefes Arch Clin Exp Ophthalmol 2008 1.59
20 Oncologic, functional, and complications outcomes of robot-assisted radical cystectomy with totally intracorporeal neobladder diversion. Eur Urol 2013 1.58
21 Efron-type measures of prediction error for survival analysis. Biometrics 2007 1.58
22 Valproate-induced encephalopathy: assessment with MR imaging and 1H MR spectroscopy. Epilepsia 2002 1.55
23 Quality control after cochlear implant surgery by means of rotational tomography. Otol Neurotol 2005 1.54
24 Incorporating pathway information into boosting estimation of high-dimensional risk prediction models. BMC Bioinformatics 2009 1.52
25 Use of the alkaline in vivo Comet assay for mechanistic genotoxicity investigations. Mutagenesis 2004 1.44
26 Solitary spinal artery aneurysms as a rare source of spinal subarachnoid hemorrhage: potential etiology and treatment strategy. AJNR Am J Neuroradiol 2005 1.43
27 The relationship between quality of research and citation frequency. BMC Med Res Methodol 2006 1.40
28 [Neuropsychiatric involvement in systemic lupus erythematosus. Part 2: diagnostic and therapy]. Med Klin (Munich) 2003 1.40
29 Intrathecal gadolinium-enhanced MR myelography showing multiple dural leakages in a patient with Marfan syndrome. AJR Am J Roentgenol 2005 1.40
30 A competing risks analysis of bloodstream infection after stem-cell transplantation using subdistribution hazards and cause-specific hazards. Stat Med 2007 1.37
31 The congenital unilateral retinocephalic vascular malformation syndrome (bonnet-dechaume-blanc syndrome or wyburn-mason syndrome): review of the literature. Surv Ophthalmol 2008 1.32
32 Understanding competing risks: a simulation point of view. BMC Med Res Methodol 2011 1.31
33 Prognosis of central retinal artery occlusion: local intraarterial fibrinolysis versus conservative treatment. AJNR Am J Neuroradiol 2002 1.30
34 Comprehensive survival analysis of a cohort of patients with Stevens-Johnson syndrome and toxic epidermal necrolysis. J Invest Dermatol 2013 1.28
35 Erythropoietin or Darbepoetin for patients with cancer--meta-analysis based on individual patient data. Cochrane Database Syst Rev 2009 1.26
36 Misspecified regression model for the subdistribution hazard of a competing risk. Stat Med 2007 1.26
37 Palliative care for older people - exploring the views of doctors and nurses from different fields in Germany. BMC Palliat Care 2009 1.24
38 Inflation of type I error rate in two statistical tests for the detection of publication bias in meta-analyses with binary outcomes. Stat Med 2002 1.23
39 An easy mathematical proof showed that time-dependent bias inevitably leads to biased effect estimation. J Clin Epidemiol 2008 1.22
40 Mortality associated with in-hospital bacteraemia caused by Staphylococcus aureus: a multistate analysis with follow-up beyond hospital discharge. J Antimicrob Chemother 2010 1.22
41 Reporting of eligibility criteria of randomised trials: cohort study comparing trial protocols with subsequent articles. BMJ 2011 1.19
42 Estimators and confidence intervals for the marginal odds ratio using logistic regression and propensity score stratification. Stat Med 2010 1.18
43 The impact of time-dependent bias in proportional hazards modelling. Stat Med 2008 1.18
44 In vivo wall shear stress distribution in the carotid artery: effect of bifurcation geometry, internal carotid artery stenosis, and recanalization therapy. Circ Cardiovasc Imaging 2010 1.17
45 Nosocomial infection, length of stay, and time-dependent bias. Infect Control Hosp Epidemiol 2009 1.16
46 Time-dependent covariates in the proportional subdistribution hazards model for competing risks. Biostatistics 2008 1.15
47 Economic impact of community-acquired and nosocomial lower respiratory tract infections in young children in Germany. Eur J Pediatr 2005 1.15
48 Boosting for high-dimensional time-to-event data with competing risks. Bioinformatics 2009 1.15
49 Time-dependent study entries and exposures in cohort studies can easily be sources of different and avoidable types of bias. J Clin Epidemiol 2012 1.13
50 Treatment-effect estimates adjusted for small-study effects via a limit meta-analysis. Biostatistics 2010 1.13
51 Representativeness of the surveillance data in the intensive care unit component of the German nosocomial infections surveillance system. Infect Control Hosp Epidemiol 2010 1.12
52 Carotid cavernous fistula: embolization via a bilateral superior ophthalmic vein approach. AJNR Am J Neuroradiol 2002 1.12
53 Confidence intervals for the effect of a prognostic factor after selection of an 'optimal' cutpoint. Stat Med 2004 1.10
54 Estimating a time-dependent concordance index for survival prediction models with covariate dependent censoring. Stat Med 2012 1.09
55 Tamoxifen versus control after adjuvant, risk-adapted chemotherapy in postmenopausal, receptor-negative patients with breast cancer: a randomized trial (GABG-IV D-93)--the German Adjuvant Breast Cancer Group. J Clin Oncol 2005 1.09
56 Adapting prediction error estimates for biased complexity selection in high-dimensional bootstrap samples. Stat Appl Genet Mol Biol 2008 1.09
57 Evidence from nonrandomized studies: a case study on the estimation of causal effects. Am J Epidemiol 2008 1.07
58 Botulinum A toxin injections into the detrusor: an effective treatment in idiopathic and neurogenic detrusor overactivity? Neurourol Urodyn 2005 1.07
59 Survival in surgically treated, nodal positive prostate cancer patients is predicted by histopathological characteristics of the primary tumor and its lymph node metastases. Prostate 2009 1.05
60 The brain tumor board: lessons to be learned from an interdisciplinary conference. Onkologie 2005 1.05
61 C-arm cone beam computed tomography needle path overlay for image-guided procedures of the spine and pelvis. Neuroradiology 2011 1.04
62 Comparison of three-dimensional rotational angiography with digital subtraction angiography in the assessment of ruptured cerebral aneurysms. AJNR Am J Neuroradiol 2002 1.03
63 Gene profiling of clinical routine biopsies and prediction of survival in non-small cell lung cancer. Am J Respir Crit Care Med 2009 1.02
64 Analysis of independent microarray datasets of renal biopsies identifies a robust transcript signature of acute allograft rejection. Transpl Int 2008 1.01
65 Case report: brain and liver abscesses caused by oral infection with Streptococcus intermedius. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2006 1.00
66 Simpson's paradox visualized: the example of the rosiglitazone meta-analysis. BMC Med Res Methodol 2008 1.00
67 C-reactive protein, carotid atherosclerosis, and cerebral small-vessel disease: results of the Austrian Stroke Prevention Study. Stroke 2006 0.99
68 Cluster-localized sparse logistic regression for SNP data. Stat Appl Genet Mol Biol 2012 0.98
69 Sample sizes for clinical trials with time-to-event endpoints and competing risks. Contemp Clin Trials 2005 0.98
70 Summary ROC curve based on a weighted Youden index for selecting an optimal cutpoint in meta-analysis of diagnostic accuracy. Stat Med 2010 0.98
71 Application of multistate models in hospital epidemiology: advances and challenges. Biom J 2011 0.96
72 Comment on 'Network-constrained regularization and variable selection for analysis of genomic data'. Bioinformatics 2008 0.94
73 Nondestructive three-dimensional analysis of electrode to modiolus proximity. Otol Neurotol 2002 0.92
74 Robot-assisted radical cystectomy: description of an evolved approach to radical cystectomy. Eur Urol 2013 0.92
75 The health and economic burden of bloodstream infections caused by antimicrobial-susceptible and non-susceptible Enterobacteriaceae and Staphylococcus aureus in European hospitals, 2010 and 2011: a multicentre retrospective cohort study. Euro Surveill 2016 0.92
76 Mechanical thrombolysis in acute ischemic stroke with endovascular photoacoustic recanalization. Stroke 2004 0.91
77 A test for publication bias in meta-analysis with sparse binary data. Stat Med 2007 0.91
78 Incidence densities in a competing events analysis. Am J Epidemiol 2010 0.91
79 Genome-wide association study of Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis in Europe. Orphanet J Rare Dis 2011 0.91
80 Statistically significant papers in psychiatry were cited more often than others. J Clin Epidemiol 2007 0.90
81 Dynamic magnetic resonance imaging of swallowing and laryngeal motion using parallel imaging at 3 T. Magn Reson Imaging 2008 0.90
82 Competing risks and multistate models. Clin Cancer Res 2012 0.89
83 Aggressive versus conservative initiation of antibiotics. Lancet Infect Dis 2013 0.89
84 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. Biom J 2010 0.88
85 Vocal tract in female registers--a dynamic real-time MRI study. J Voice 2009 0.88
86 Endovascular treatment of complex aneurysms at the vertebrobasilar junction with flow-diverting stents: initial experience. Neurosurgery 2013 0.87
87 Multi-state model for studying an intermediate event using time-dependent covariates: application to breast cancer. BMC Med Res Methodol 2013 0.87
88 Comments on 'The performance of different propensity score methods for estimating marginal odds ratios'. Stat Med 2008 0.87
89 An overview of techniques for linking high-dimensional molecular data to time-to-event endpoints by risk prediction models. Biom J 2011 0.87
90 Quantifying the predictive accuracy of time-to-event models in the presence of competing risks. Biom J 2011 0.87
91 Carotid intima-media thickness and distensibility measured by MRI at 3 T versus high-resolution ultrasound. Eur Radiol 2009 0.87
92 Blood hemoglobin level and treatment outcome of early breast cancer. Strahlenther Onkol 2004 0.86
93 A randomised trial of goserelin versus control after adjuvant, risk-adapted chemotherapy in premenopausal patients with primary breast cancer - GABG-IV B-93. Eur J Cancer 2007 0.86
94 Parallelized prediction error estimation for evaluation of high-dimensional models. Bioinformatics 2009 0.86
95 Valproate-induced metabolic changes in patients with epilepsy: assessment with H-MRS. Epilepsia 2008 0.85
96 Vocal tract and register changes analysed by real-time MRI in male professional singers-a pilot study. Logoped Phoniatr Vocol 2008 0.85
97 The German Clinical Trials Register: challenges and chances of implementing a bilingual registry. J Evid Based Med 2009 0.85
98 Transmission-associated nosocomial infections: prolongation of intensive care unit stay and risk factor analysis using multistate models. Am J Infect Control 2008 0.84
99 Is pelvic lymphadenectomy really necessary in patients with a serum prostate-specific antigen level of <10 ng/ml undergoing radical prostatectomy for prostate cancer? BJU Int 2005 0.84
100 Unusually quick resorption of an intracerebral hemorrhage in congenital afibrinogenemia. Neuroradiology 2002 0.84
101 Letter to the editor. Biostatistics 2009 0.83
102 Multilevel competing risk models to evaluate the risk of nosocomial infection. Crit Care 2014 0.83
103 Identification of a 17-protein signature in the serum of lung cancer patients. Oncol Rep 2010 0.83
104 Selective involvement of the globus pallidus and dentate nucleus in succinic semialdehyde dehydrogenase deficiency. Pediatr Radiol 2002 0.83
105 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. Stat Med 2010 0.82
106 Differential expression of MMP-2/MMP-9 and potential benefit of an MMP inhibitor in experimental acute kidney allograft rejection. Transpl Immunol 2003 0.82
107 Paediatric hospital-acquired bacteraemia in developing countries. Lancet 2012 0.82
108 Clinical applications of cardiovascular magnetic resonance. Curr Pharm Des 2005 0.82
109 Involvement of the vertebral arteries in giant cell arteritis mimicking vertebral dissection. J Neurol 2003 0.82
110 Plasma vascular endothelial growth factor and serum soluble angiopoietin receptor sTIE-2 in patients with dural arteriovenous fistulas: a pilot study. Neuroradiology 2005 0.81
111 Evaluation of SCORTEN on a cohort of patients with Stevens-Johnson syndrome and toxic epidermal necrolysis included in the RegiSCAR study. J Burn Care Res 2011 0.81
112 Clinical response by palpation during primary systemic therapy with four dose-dense cycles doxorubicin and docetaxel in patients with operable breast cancer: further results from a randomised controlled trial. Eur J Cancer 2007 0.81
113 The role of lymphadenectomy in prostate cancer. Nat Clin Pract Urol 2005 0.81
114 Tapia syndrome caused by a vertebral artery dissection. Ear Nose Throat J 2011 0.81
115 Are large trials less reliable than small trials? J Clin Epidemiol 2009 0.81
116 Development of a complex dural arteriovenous fistula next to a cerebellar developmental venous anomaly after resection of a brainstem cavernoma. Case report and review of the literature. J Neurosurg 2004 0.80
117 Active bleeding from ruptured cerebral aneurysms during diagnostic angiography: emergency treatment. AJNR Am J Neuroradiol 2003 0.80
118 Transient total sleep loss in cerebral Whipple's disease: a longitudinal study. J Sleep Res 2002 0.80
119 Real-time and three-dimensional MRI for diagnosis of pharyngoceles. J Magn Reson Imaging 2013 0.80
120 Primary stenting as emergency therapy in acute basilar artery occlusion. Neuroradiology 2002 0.80
121 Prevalence of potential retrograde embolization pathways in the proximal descending aorta in stroke patients and controls. Cerebrovasc Dis 2014 0.79
122 Radiologic appearance of a rare primary vertebral lymphangioma. AJNR Am J Neuroradiol 2002 0.79
123 Brainstem compression caused by bilateral traumatic carotid cavernous fistulas: case report. Neurosurgery 2010 0.79
124 Artificial neural networks for diagnosis and prognosis in prostate cancer. Semin Urol Oncol 2002 0.79
125 Improved xenogenic hepatocyte implantation into nude mouse liver parenchyma with acute liver failure when followed by repeated anti-Fas antibody (Jo2) treatment. Cell Transplant 2008 0.79
126 Subarachnoid hemorrhage due to isolated spinal arteries: Rare cases with controversy about the treatment strategy. AJNR Am J Neuroradiol 2006 0.79
127 Regulation of epithelial sodium channel in puromycin aminonucleoside-induced unilateral experimental nephrotic syndrome in normal and analbuminemic Nagase rats. Nephron Physiol 2005 0.79
128 Measures of prediction error for survival data with longitudinal covariates. Biom J 2011 0.78
129 Nested case-control studies in cohorts with competing events. Epidemiology 2014 0.78
130 Incidence in ICU populations: how to measure and report it? Intensive Care Med 2014 0.78
131 Coating the wall of an injured intracranial carotid artery during tumor removal with n-butyl-2-cyanoacrylate: technical case report. Neurosurgery 2006 0.78
132 Considerations on what constitutes a 'qualified statistician' in regulatory guidelines. Stat Med 2011 0.77
133 Procalcitonin as a diagnostic marker for sepsis. Lancet Infect Dis 2013 0.77
134 CRISTOPH - a cluster-randomised intervention study to optimise the treatment of patients with hypertension in General Practice. BMC Fam Pract 2008 0.77
135 Comparison of high-resolution X-ray and micro-CT for experimental evaluation of intracranial stent prototypes: quality evaluation beyond CE mark. Neuroradiology 2014 0.77
136 Comparison of effects of dalteparin and enoxaparin on hemostatic parameters and von Willebrand factor in patients with unstable angina pectoris or non--ST- segment elevation acute myocardial infarction. Am J Cardiol 2002 0.76
137 Role of euroSCORE II in predicting long-term outcome after percutaneous catheter intervention for coronary triple vessel disease or left main stenosis. Int J Cardiol 2013 0.76
138 Kidney transplantation procedures in rats: assessments, complications, and management. Microsurgery 2006 0.76
139 Increased survival despite failure of transplanted human hepatocyte implantation into liver parenchyma of nude mice with repeated lethal Jo2-induced liver deficiency. Cell Transplant 2013 0.76
140 Analysis of survival by tumor response: have we learnt any better? Ann Hematol 2015 0.76
141 Boosting qualifies capture-recapture methods for estimating the comprehensiveness of literature searches for systematic reviews. J Clin Epidemiol 2011 0.76
142 Ophthalmic artery microcatheterization for research purposes in pigs. A technical note. J Invest Surg 2014 0.76
143 Comments on 'Performance of using multiple stepwise algorithms for variable selection' by Ryan E. Wiegand, Statistics in Medicine 2010; 29:1647-1659. Stat Med 2011 0.75
144 Treatment of hospital-acquired pneumonia. Lancet Infect Dis 2011 0.75
145 Catheter navigation within the subarachnoid space. AJNR Am J Neuroradiol 2004 0.75
146 Decrease of mGluR5 receptor density goes parallel with changes in enkephalin and substance P immunoreactivity in Huntington's disease: a preliminary investigation in the postmortem human brain. Brain Struct Funct 2014 0.75
147 Correction: Neuraminidase Inhibitors and Hospital Mortality in British Patients with H1N1 Influenza A: A Re-Analysis of Observational Data. PLoS One 2017 0.75
148 A note on statistical association and causality derived from epidemiological ICU data. Intensive Care Med 2010 0.75
149 "Classification of therapy resistance based on longitudinal biomarker profiles" by M. Kohlmann, L. Held and V. P. Grunert. Biom J 2010 0.75
150 Dural arteriovenous fistulae: noninvasive diagnosis with dynamic MR digital subtraction angiography. AJNR Am J Neuroradiol 2002 0.75
151 Long-term results of brachytherapy with temporary iodine-125 seeds in children with low-grade gliomas. Int J Radiat Oncol Biol Phys 2011 0.75
152 Regression modelling in hospital epidemiology: a statistical note. Crit Care 2008 0.75
153 Thrombolytic therapy for acute stroke: the hidden dimension. Front Neurol 2010 0.75
154 Risk factors disrupting mucosal integrity and subsequent vancomycin-resistant enterococcus infection. Pediatr Blood Cancer 2010 0.75
155 Dose-intensified epirubicin versus standard-dose epirubicin/cyclophosphamide followed by CMF in breast cancer patients with 10 or more positive lymph nodes: results of a randomised trial (GABG-IV E-93) - the German Adjuvant Breast Cancer Group. Eur J Cancer 2010 0.75
156 Analbuminemic Nagase rats: blood pressure response to dietary salt challenge. Nephron Physiol 2006 0.75
157 Use of the radial forearm artery for secondary embolization of an extensive life-threatening arteriovenous malformation of the mid-face and anterior skull base - a case report. J Craniomaxillofac Surg 2012 0.75
158 Assessing non-inferiority in treatment trials regarding severe infectious diseases: An extension to the entire follow-up period using a cure-death multistate model. Antimicrob Agents Chemother 2017 0.75
159 A boosting approach for adapting the sparsity of risk prediction signatures based on different molecular levels. Stat Appl Genet Mol Biol 2014 0.75
160 Clinical epidemiology and individualized medicine. Biom J 2011 0.75
161 UEMS Division of Neuroradiology--a new development for European neuroradiology. Neuroradiology 2009 0.75
162 A general, prediction error-based criterion for selecting model complexity for high-dimensional survival models. Stat Med 2010 0.75
163 Liquid 2-poly-hydroxyethyl-methacrylate embolization of experimental arteriovenous malformations: feasibility study. AJNR Am J Neuroradiol 2002 0.75
164 Nonparametric inference for the cumulative incidence function of a competing risk, with an emphasis on confidence bands in the presence of left-truncation. Biom J 2012 0.75
165 Assessment of the "case-chaos" design as an adjunct to the case-control design. Am J Epidemiol 2014 0.75
166 [Hemorrhage after embolization of a cerebral AVM]. Clin Neuroradiol 2010 0.75
167 Simulating and analysing infectious disease data in a heterogeneous population with migration. Comput Methods Programs Biomed 2010 0.75
168 [Unusual retinal anomaly: the double papilla]. Klin Monbl Augenheilkd 2003 0.75
169 Dose escalation of gemcitabine concomitant with radiation and cisplatin for nonsmall cell lung cancer: a phase 1-2 study. Cancer 2010 0.75