Evidence map›Paper›PMID 26590266›Full record

ArticleNephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association2016

Examining the robustness of the obesity paradox in maintenance hemodialysis patients: a marginal structural model analysis.

Megha Doshi, Elani Streja, Connie M Rhee, Jongha Park, Vanessa A Ravel, Melissa Soohoo, Hamid Moradi, Wei Ling Lau, Rajnish Mehrotra, Sooraj Kuttykrishnan and 3 more

Open access · bronzeAbstract readMulticenter Study
In one paragraph

Article in Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 8% 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

41 citing papers in PubMed, 1 synthesis or guideline pooled it, 78 citations in OpenAlex.

  1. Pooled it
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  13. Patient and Health Care Professional Perspectives on Addressing Obesity in ESKD.American journal of kidney diseases : the official journal of the National Kidney Foundation · 2023
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  18. Cohort Study and Bias Analysis of the Obesity Paradox Across Stages of Chronic Kidney Disease.Journal of renal nutrition : the official journal of the Council on Renal Nutrition of the National Kidney Foundation · 2022
    Article
  19. Review
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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

13 authors at 5 institutions in 2 countries.

Megha DoshiHarold Simmons Center for Kidney Disease Research and Epidemiology, University of California Irvine, School of Medicine, Orange, CA, USA.
Elani StrejaHarold Simmons Center for Kidney Disease Research and Epidemiology, University of California Irvine, School of Medicine, Orange, CA, USA.
Connie M RheeHarold Simmons Center for Kidney Disease Research and Epidemiology, University of California Irvine, School of Medicine, Orange, CA, USA.
Jongha ParkHarold Simmons Center for Kidney Disease Research and Epidemiology, University of California Irvine, School of Medicine, Orange, CA, USA Division of Nephrology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
Vanessa A RavelHarold Simmons Center for Kidney Disease Research and Epidemiology, University of California Irvine, School of Medicine, Orange, CA, USA.
Melissa SoohooHarold Simmons Center for Kidney Disease Research and Epidemiology, University of California Irvine, School of Medicine, Orange, CA, USA.
Hamid MoradiHarold Simmons Center for Kidney Disease Research and Epidemiology, University of California Irvine, School of Medicine, Orange, CA, USA Department of Medicine, Long Beach Veteran Affairs Health System, Long Beach, CA, USA.
Wei Ling LauHarold Simmons Center for Kidney Disease Research and Epidemiology, University of California Irvine, School of Medicine, Orange, CA, USA.
Rajnish MehrotraHarborview Medical Center and Kidney Research Institute, Division of Nephrology, Department of Medicine, University of Washington, Seattle, WA, USA.
Sooraj KuttykrishnanHarborview Medical Center and Kidney Research Institute, Division of Nephrology, Department of Medicine, University of Washington, Seattle, WA, USA.
Csaba P KovesdyDivision of Nephrology, University of Tennessee Health Science Center, Memphis, TN, USA Nephrology Section, Memphis Veterans Affairs Medical Center, Memphis, TN, USA.
Kamyar Kalantar-ZadehHarold Simmons Center for Kidney Disease Research and Epidemiology, University of California Irvine, School of Medicine, Orange, CA, USA Department of Medicine, Long Beach Veteran Affairs Health System, Long Beach, CA, USA Los Angeles Biomedical Research Institute at Harbor-UCLA, Torrance, CA, USA.
Joline L T ChenHarold Simmons Center for Kidney Disease Research and Epidemiology, University of California Irvine, School of Medicine, Orange, CA, USA Department of Medicine, Long Beach Veteran Affairs Health System, Long Beach, CA, USA.
University of California, Irvine · USUniversity of Washington · USUlsan College · KRUniversity of Tennessee Health Science Center · USVA Long Beach Healthcare System · US

Funding

University of California Health Participation in the National COVID Cohort Collaborative (N3C)UL1TR001414 · NCATS · UNIVERSITY OF CALIFORNIA-IRVINE · PI COOPER, DAN M, VILAIN, ERIC J. · 2015 to 2023
$35.1M
MALNUTRITION, DIET AND RACIAL DISPARITIES IN CKDK24DK091419 · NIDDK · UNIVERSITY OF CALIFORNIA-IRVINE · PI KALANTAR-ZADEH, KAMYAR · 2011 to 2020
$1.8M
Examining Racial and Cardiovascular Paradoxes in Chronic Kidney DiseaseR01DK078106 · NIDDK · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI KALANTAR-ZADEH, KAMYAR · 2007 to 2011
$1.1M
Comparative Effectiveness of Dialysis ModalitiesR01DK095668 · NIDDK · UNIVERSITY OF WASHINGTON · PI KALANTAR-ZADEH, KAMYAR, MEHROTRA, RAJNISH · 2012 to 2014
$1.0M
Hypothyroidism, Cardiovascular Health, and Survival in Kidney DiseaseK23DK102903 · NIDDK · UNIVERSITY OF CALIFORNIA-IRVINE · PI RHEE, CONNIE MEEYOUNG · 2014 to 2018
$955k
Racial and Cardiovascular Risk Factor Anomalies in CKDR01DK096920 · NIDDK · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI KALANTAR-ZADEH, KAMYAR, KOVESDY, CSABA PAL · 2013 to 2015
$909k
NCATS NIH HHS UL1 TR001414NIDDK NIH HHS K23 DK102903NIDDK NIH HHS K24 DK091419NIDDK NIH HHS R01 DK078106NIDDK NIH HHS R01 DK095668NIDDK NIH HHS R01 DK096920
6 · The paper itself

Abstract

backgroundThe inverse association between body mass index (BMI) and mortality observed in patients treated with maintenance hemodialysis (MHD), also known as the obesity paradox, may be a result of residual confounding. Marginal structural model (MSM) analysis, a technique that accounts for time-varying confounders, may be more appropriate to investigate this association. We hypothesize that after applying MSM, the inverse association between BMI and mortality in MHD patients is attenuated.

methodsWe examined the associations between BMI and all-cause mortality among 123 624 adult MHD patients treated during 2001-6. We examined baseline and time-varying BMI using Cox proportional hazards models and MSM while considering baseline and time-varying covariates, including demographics, comorbidities and markers of malnutrition and inflammation.

resultsThe patients included 45% women and 32% African Americans with a mean age of 61(SD 15) years. In all models, BMI showed a linear incremental inverse association with mortality. Compared with the reference (BMI 25 to <27.5 kg/m(2)), a BMI of <18 kg/m(2) was associated with a 3.2-fold higher death risk [hazard ratio (HR) 3.17 (95% CI 3.05-3.29)], and mortality risks declined with increasing BMI with the greatest survival advantage of 31% lower risk [HR 0.69 (95% CI 0.64-0.75)] observed with a BMI of 40 to <45 kg/m(2).

conclusionsThe linear inverse relationship between BMI and mortality is robust across models including MSM analyses that more completely account for time-varying confounders and biases.

Indexed as

Body Mass IndexRenal DialysisAdolescentAdultAgedAged, 80 and overFemaleHumansKidney Failure, ChronicMaleMiddle AgedObesityProportional Hazards ModelsSurvival RateUnited StatesYoung Adultcardiovasculardialysisepidemiologynutritionobesity

Identifiers

PMID26590266
PMCPMC4967726
OpenAlexW2404194319

What OpenQuestion holds

Textmetadata
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.