Evidence map›Paper›PMID 23828763›Full record

ArticleAmerican journal of hematology2013

Multiplicative interaction between mean corpuscular volume and red cell distribution width in predicting mortality of elderly patients with and without anemia.

Anthony P Lam, Krishna Gundabolu, Ashwin Sridharan, Rishi Jain, Pavlos Msaouel, Grigorios Chrysofakis, Yiting Yu, Ellen Friedman, Elizabeth Price, Stanley Schrier and 1 more

Abstract readComparative Study
In one paragraph

Article in American journal of hematology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

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  12. Aging and chronic high-fat feeding negatively affect kidney size, function, and gene expression in CTRP1-deficient mice.American journal of physiology. Regulatory, integrative and comparative physiology · 2021
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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

11 authors at 3 institutions in 1 country.

Anthony P LamDepartment of Medicine, Stanford University School of Medicine, Stanford, CA.
Krishna Gundabolu
Ashwin Sridharan
Rishi Jain
Pavlos Msaouel
Grigorios Chrysofakis
Yiting Yu
Ellen Friedman
Elizabeth Price
Stanley Schrier
Amit K Verma
Yeshiva University · USAlbert Einstein College of Medicine · USStanford University · US

Funding

TUMOR SPECIFIC CYTOTOXIC T-LYMPHOCYTES IN BONE MARROW TRANSPLANTATIONP01CA049605 · NCI · STANFORD UNIVERSITY · PI David B. Miklos · 1989 to 2026
$73.3M
Training Program in Hematopoietic Cell TransplantationT32HL007952 · NHLBI · STANFORD UNIVERSITY · PI NEGRIN, ROBERT S · 2001 to 2021
$2.1M
NCI NIH HHS P01 CA049605NHLBI NIH HHS T32 HL007952
6 · The paper itself

Abstract

Recent studies have shown that an elevated red cell distribution width (RDW) is an important predictor of adverse outcomes. However, the strength of this biomarker has not been tested in a large outpatient elderly population. Also since increased RDW can be due to a variety of etiologies, additional biomarkers are needed to refine the prognostic value of this variable. We assembled a cohort of 36,226 elderly (≥65yo) patients seen at an outpatient facility within the Einstein/Montefiore system from January 1st 1997 to May 1st 2008 who also had a complete blood count performed within 3 months of the initial visit. With a maximum follow-up of 10 years, we found that an elevated RDW (>16.6) was associated with increased risk of mortality in both non-anemic (HR = 3.66, p < 0.05) and anemic patients (HR = 1.87, p < 0.05). The effect of RDW on mortality is significantly increased in non-anemic patients with macrocytosis (HR = 5.22, p < 0.05) compared to those with normocytosis (HR = 3.86, p < 0.05) and microcytosis (HR = 2.46, p < 0.05). When comparing non-anemic patients with both an elevated RDW and macrocytosis to those with neither, we observed an elevated HR of 7.76 (higher than expected in an additive model). This multiplicative interaction was not observed in anemic patients (HR = 2.23). Lastly, we constructed Kaplan-Meier curves for each RDW/MCV subgroup and found worsened survival for those with macrocytosis and an elevated RDW in both anemia and non-anemic patients. Based on our results, the addition of MCV appears to improve the prognostic value of RDW as a predictor of overall survival in elderly patients.

Indexed as

Erythrocyte IndicesAgedAged, 80 and overAgingAnemiaBiomarkersCohort StudiesErythrocyte CountErythrocytes, AbnormalFemaleFollow-Up StudiesHospitals, TeachingHumansMaleMortalityNew York CityBiomarkers

Identifiers

PMID23828763
PMCPMC5479065
OpenAlexW1970387178

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.