Evidence map›Paper›PMID 34449032›Full record

ArticleEndocrine2022

Assessment of the AJCC staging system of pheochromocytomas/paragangliomas.

Omar Abdel-Rahman

Abstract read
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In one paragraph

Article in Endocrine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

4 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
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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

1 author at 1 institution in 1 country.

Omar Abdel-RahmanDepartment of Oncology, University of Alberta, Cross Cancer Institute, Edmonton, AB, Canada. omar.abdelsalam@ahs.ca.ORCID http://orcid.org/0000-0002-5117-2502
University of Alberta · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study aims to assess the performance of the AJCC 8th staging system for pheochromocytomas and paragangliomas (PPGLs) based on a population-based cohort.

methodsSurveillance, epidemiology, and end results (SEER)-18 registry database was reviewed, and patients with PPGLs diagnosed 2004-2015 were reviewed. AJCC stage for each patient was reconstructed from the collaborative stage dataset. Kaplan-Meier survival estimates according to the AJCC stage were reviewed, and multivariable Cox regression analysis was conducted to determine the impact of AJCC stages on overall and cancer-specific survival.

resultsA total of 416 patients with PPGLs were eligible and were included in the current analysis. Using Kaplan-Meier survival estimates, patients with stage IV seem to have the worst overall survival (P < 0.001). When the results were stratified by the site of origin (adrenal vs. extra-adrenal), similar findings were observed in both strata (P < 0.001 in each stratum). Using multivariable Cox regression analysis for overall survival, HR for stage I vs. II was: 0.59; (95% CI: 0.27-1.27), HR for stage II vs. III: 0.82; (95% CI: 0.41-1.63), and HR for stage III vs. IV was: 0.37; (95% CI: 0.24-0.58). Likewise, for cancer-specific survival, HR for stage I vs. II was: 0.72; (95% CI: 0.26-1.97), HR for stage II vs. III: 0.64; (95% CI: 0.25-1.63), and HR for stage III vs. IV was: 0.33; (95% CI: 0.19-0.56). C-statistic for AJCC 8th staging system was: 0.723 (95% CI: 0.669-0.776).

conclusionFurther improvements within AJCC 8th edition are possible, including the inclusion of the extent of metastatic disease in the subclassification of stage IV disease, and not considering primary tumor site when assigning T stage.

Indexed as

Adrenal Gland NeoplasmsParagangliomaPheochromocytomaHumansNeoplasm StagingPrognosisSEER ProgramAdrenalExtra-adrenalParagangliomaPheochromocytoma

Identifiers

PMID34449032
OpenAlexW3194616637

What OpenQuestion holds

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Registered trials

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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.