Evidence map›Paper›PMID 32049445›Full record

ArticleCancer medicine2020

The prognostic value of standardized phase angle in adults with acute leukemia: A prospective study.

Samuel J Yates, Susan Lyerly, Megan Manuel, Janet A Tooze, Heidi D Klepin, Bayard L Powell, Sarah Dralle, Alok Uprety, Timothy S Pardee

Abstract read
In one paragraph

Article in Cancer medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

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

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. 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

9 authors.

Samuel J YatesWake Forest School of Medicine, Winston-Salem, NC, USA.ORCID 0000-0003-0483-2560
Susan LyerlyComprehensive Cancer Center of Wake Forest University, Winston-Salem, NC, USA.
Megan ManuelComprehensive Cancer Center of Wake Forest University, Winston-Salem, NC, USA.
Janet A ToozeDivision of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA.
Heidi D KlepinComprehensive Cancer Center of Wake Forest University, Winston-Salem, NC, USA.ORCID 0000-0002-6262-1123
Bayard L PowellComprehensive Cancer Center of Wake Forest University, Winston-Salem, NC, USA.
Sarah DralleComprehensive Cancer Center of Wake Forest University, Winston-Salem, NC, USA.
Alok UpretyWake Forest School of Medicine, Winston-Salem, NC, USA.
Timothy S PardeeComprehensive Cancer Center of Wake Forest University, Winston-Salem, NC, USA.ORCID 0000-0002-1186-6948

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Standardized phase angle (SPhA) is a tool used to estimate body composition and cell membrane integrity. Standardized phase angle has been shown to predict survival in solid malignancies and hematopoietic stem cell transplant patients. We investigated the predictive value of SPhA on 60-day mortality, overall survival (OS), and length of hospital stay (LHS) for adults with acute myelogenous and lymphoblastic leukemia (AML and ALL). Consecutive patients ≥18 years with newly diagnosed acute leukemia receiving intensive chemotherapy were enrolled. Phase angle measurements were taken on day 1 of therapy for all patients and on the day of nadir marrow for AML patients. Measurements were standardized by BMI, gender, and age to calculate the SPhA. The difference between SPhA at nadir bone marrow compared to day 1 of induction was used to calculate change in SPhA. A cutoff of 25th percentile was used to dichotomize baseline SPhA. Among 100 patients, 88% were AML, 56% were female, and mean age was 59 years. Though not statistically significant, OS by Kaplan-Meier analysis was shorter for those below the 25th percentile SPhA compared to those above (median OS: 11.0 months vs 19.5 months; P = .09). Lower baseline SPhA was associated with increased incidence of 60-day mortality in univariable (odds ratio [OR] = 5.25; 1.35, 20.44; P = .02) but not multivariable analysis (OR = 3.12; 0.67, 14.48; P = .15) adjusted for age, creatinine, and cytogenetics. Increased change in SPhA was associated with worse OS (hazard ratio = 1.15; 1.00,1.33; P = .05) in multivariable analysis. Standardized phase angle is a rapid, noninvasive, and objective measure that may be used to inform risk stratification.

Indexed as

Body CompositionAntineoplastic Combined Chemotherapy ProtocolsBone MarrowCell MembraneCombined Modality TherapyFemaleFollow-Up StudiesHematopoietic Stem Cell TransplantationHumansLeukemia, Myeloid, AcuteMaleMiddle AgedPrognosisProspective StudiesSurvival Ratebody compositionleukemianutritionphase angleprognostic

Identifiers

PMID32049445
PMCPMC7131844

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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.