Evidence map›Paper›PMID 21906576›Full record

ArticleBiology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation2012

The impact of geographic proximity to transplant center on outcomes after allogeneic hematopoietic stem cell transplantation.

Karim E Abou-Nassar, Haesook T Kim, Jeff Blossom, Vincent T Ho, Robert J Soiffer, Corey S Cutler, Edwin P Alyea, John Koreth, Joseph H Antin, Philippe Armand

Abstract read
In one paragraph

Article in Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

29 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  12. Driving Distance and Patient-Reported Outcomes in Hematopoietic Cell Transplantation Survivors.Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation · 2020
    Article
  13. Pilot Study of Telehealth Evaluations in Patients Undergoing Hematopoietic Cell Transplantation.Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation · 2020
    Article
  14. Article
  15. Review
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  19. Review
  20. Financial Hardship and Patient-Reported Outcomes after Hematopoietic Cell Transplantation.Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation · 2016
    Article
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

10 authors.

Karim E Abou-NassarDepartment of Medicine, Division of Hematology, University of Ottawa, Ontario, Canada.
Haesook T Kim
Jeff Blossom
Vincent T Ho
Robert J Soiffer
Corey S Cutler
Edwin P Alyea
John Koreth
Joseph H Antin
Philippe Armand

Funding

Project 3: Humoral Targets and B Cell Biology in Chronic Graft-vs.-Host DiseaseP01CA142106 · NCI · DANA-FARBER CANCER INST · PI CUTLER, COREY S · 2009 to 2019
$17.5M
NCI NIH HHS CA142106NCI NIH HHS P01 CA142106
6 · The paper itself

Abstract

Patients undergoing allogeneic hematopoietic stem cell transplantation (HSCT) need access to specialized care. We hypothesized that access to the transplant center after HSCT may be challenging for patients living in geographically distant areas, and that this would have an adverse effect on their outcome. We analyzed 1912 adult patients who underwent allogeneic HSCT at the Dana-Farber/Brigham and Women's Cancer Center (DF/BWCC) between 1996 and 2009 and who resided within 6 hours driving time of the institution. Driving time from primary residence to DF/BWCC based on zipcode was determined using geographic information systems. The median driving time (range) to DF/BWCC was 72 (2-358) minutes. When patients were stratified by driving time quartile, overall survival (OS) after HSCT was similar in the first year but worse after 1 year in patients in the top quartile (≥ 160 minutes driving time). In a landmark analysis of the 909 patients alive and free of disease at 1 year, 5-year OS was 76% and 65% for patients in the first (≤ 40 minutes) and fourth (≥ 160 minutes) quartiles, respectively (P = .027). This was confirmed in a multivariable analysis. The difference appeared to be mostly because of an increase in nonrelapse mortality. The number of visits to the transplant center between day 100 and 365 after HSCT declined significantly with increasing driving time to the transplant center, which was independently associated with worse survival. Long driving time to the transplant center is associated with worse OS in patients alive and disease-free 1 year after HSCT, independently of other patient-, disease-, and HSCT-related variables. This may be in part related to the lower frequency of post-HSCT visits in patients living farther away.

Indexed as

Hematopoietic Stem Cell TransplantationTopography, MedicalAdolescentAdultAgedCanadaFemaleHumansLymphoproliferative DisordersMaleMiddle AgedMultivariate AnalysisRetrospective StudiesSurvival AnalysisTime FactorsTransplantation, Homologous

Identifiers

PMID21906576
PMCPMC3245811

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.