Schumacher M - Search Results

1

Modeling the effect of time-dependent exposure on intensive care unit mortality.

Wolkewitz M, Beyersmann J, Gastmeier P, Schumacher M. Wolkewitz M, et al. Among authors: schumacher m. Intensive Care Med. 2009 May;35(5):826-32. doi: 10.1007/s00134-009-1423-6. Epub 2009 Jan 31. Intensive Care Med. 2009. PMID: 19183943

2

Incidence in ICU populations: how to measure and report it?

Beyersmann J, Gastmeier P, Schumacher M. Beyersmann J, et al. Among authors: schumacher m. Intensive Care Med. 2014 Jun;40(6):871-6. doi: 10.1007/s00134-014-3279-7. Epub 2014 May 10. Intensive Care Med. 2014. PMID: 24817028

3

Multiple time scales in modeling the incidence of infections acquired in intensive care units.

Wolkewitz M, Cooper BS, Palomar-Martinez M, Alvarez-Lerma F, Olaechea-Astigarraga P, Barnett AG, Schumacher M. Wolkewitz M, et al. Among authors: schumacher m. BMC Med Res Methodol. 2016 Sep 1;16(1):116. doi: 10.1186/s12874-016-0199-y. BMC Med Res Methodol. 2016. PMID: 27586677 Free PMC article.

4

Multistate Modeling to Analyze Nosocomial Infection Data: An Introduction and Demonstration.

Wolkewitz M, von Cube M, Schumacher M. Wolkewitz M, et al. Among authors: schumacher m. Infect Control Hosp Epidemiol. 2017 Aug;38(8):953-959. doi: 10.1017/ice.2017.107. Epub 2017 Jun 21. Infect Control Hosp Epidemiol. 2017. PMID: 28633679

5

Simulation shows undesirable results for competing risks analysis with time-dependent covariates for clinical outcomes.

Poguntke I, Schumacher M, Beyersmann J, Wolkewitz M. Poguntke I, et al. Among authors: schumacher m. BMC Med Res Methodol. 2018 Jul 16;18(1):79. doi: 10.1186/s12874-018-0535-5. BMC Med Res Methodol. 2018. PMID: 30012114 Free PMC article.

6

Estimands to quantify prolonged hospital stay associated with nosocomial infections.

Wolkewitz M, Schumacher M, Rücker G, Harbarth S, Beyersmann J. Wolkewitz M, et al. Among authors: schumacher m. BMC Med Res Methodol. 2019 May 31;19(1):111. doi: 10.1186/s12874-019-0752-6. BMC Med Res Methodol. 2019. PMID: 31151418 Free PMC article.

7

The impact of time-dependent bias in proportional hazards modelling.

Beyersmann J, Wolkewitz M, Schumacher M. Beyersmann J, et al. Among authors: schumacher m. Stat Med. 2008 Dec 30;27(30):6439-54. doi: 10.1002/sim.3437. Stat Med. 2008. PMID: 18837068

8

Nosocomial infection, length of stay, and time-dependent bias.

Beyersmann J, Kneib T, Schumacher M, Gastmeier P. Beyersmann J, et al. Among authors: schumacher m. Infect Control Hosp Epidemiol. 2009 Mar;30(3):273-6. doi: 10.1086/596020. Infect Control Hosp Epidemiol. 2009. PMID: 19193018

9

Time-dependent study entries and exposures in cohort studies can easily be sources of different and avoidable types of bias.

Wolkewitz M, Allignol A, Harbarth S, de Angelis G, Schumacher M, Beyersmann J. Wolkewitz M, et al. Among authors: schumacher m. J Clin Epidemiol. 2012 Nov;65(11):1171-80. doi: 10.1016/j.jclinepi.2012.04.008. J Clin Epidemiol. 2012. PMID: 23017635

10

Survival biases lead to flawed conclusions in observational treatment studies of influenza patients.

Wolkewitz M, Schumacher M. Wolkewitz M, et al. Among authors: schumacher m. J Clin Epidemiol. 2017 Apr;84:121-129. doi: 10.1016/j.jclinepi.2017.01.008. Epub 2017 Feb 7. J Clin Epidemiol. 2017. PMID: 28188897

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