Evidence map›Paper›PMID 33017663›Full record

ReviewTransplantation and cellular therapy2021

Statistical Methods for Time-Dependent Variables in Hematopoietic Cell Transplantation Studies.

Soyoung Kim, Brent Logan, Marcie Riches, Min Chen, Kwang Woo Ahn

Open access · hybridAbstract readReview
In one paragraph

Review in Transplantation and cellular therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.0field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 16 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Soyoung KimDivision of Biostatistics, Medical College of Wisconsin, Milwaukee, Wisconsin; Center for International Blood and Marrow Transplant Research, Milwaukee, Wisconsin. Electronic address: skim@mcw.edu.
Brent LoganDivision of Biostatistics, Medical College of Wisconsin, Milwaukee, Wisconsin; Center for International Blood and Marrow Transplant Research, Milwaukee, Wisconsin.
Marcie RichesDivision of Hematology, University of North Carolina at Chapel Hill, North Carolina.
Min ChenCenter for International Blood and Marrow Transplant Research, Milwaukee, Wisconsin.
Kwang Woo AhnDivision of Biostatistics, Medical College of Wisconsin, Milwaukee, Wisconsin; Center for International Blood and Marrow Transplant Research, Milwaukee, Wisconsin.
Medical College of Wisconsin · USUniversity of North Carolina at Chapel Hill · US

Funding

Data Resource for Analyzing Blood &Marrow TransplantsU24CA076518 · NCI · MEDICAL COLLEGE OF WISCONSIN · PI Amy M Moskop, Bronwen Shaw · 1998 to 2026
$105.2M
NCI NIH HHS U24 CA076518
6 · The paper itself

Abstract

The interaction of clinically important yet time-dependent events such as infection and acute graft-versus-host disease (GVHD) on hematopoietic cell transplant outcomes is of particular interest to transplant physicians. Clinically, the development of these events is unknown at the time of transplant, but both events place the patient at risk of morbidity and mortality. Furthermore, the occurrence of one may affect the risk for the development of the other (ie, GVHD results in increased immunosuppression, resulting in infection). While these risks can be determined using traditional Cox modeling, due to their time-varying effects on the outcome, it is challenging to graphically display the patient's expected clinical status over time. Landmark analysis is one of the commonly used methods to present time-dependent variables graphically. It can be a useful tool for describing an outcome of interest with time-dependent variables. In this article, we review the basic concepts of time-dependent variables and describe a landmark study with a single-landmark time point and a dynamic landmark study with multiple landmark time points. We illustrate these methods with a hematopoietic cell transplantation data set with infections.

Indexed as

Graft vs Host DiseaseHematopoietic Stem Cell TransplantationHumansCox modelDynamic landmark studiesLandmark studySurvival analysisTime-dependent variables

Identifiers

PMID33017663
PMCPMC8015678
OpenAlexW3089613115

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.