Evidence map›Paper›PMID 30987591›Full record

ArticleBMC geriatrics2019

Associations between superoxide dismutase, malondialdehyde and all-cause mortality in older adults: a community-based cohort study.

Chen Mao, Jin-Qiu Yuan, Yue-Bin Lv, Xiang Gao, Zhao-Xue Yin, Virginia Byers Kraus, Jie-Si Luo, Choy-Lye Chei, David Bruce Matchar, Yi Zeng and 1 more

Abstract read
In one paragraph

Article in BMC geriatrics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing 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

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

  1. Pooled it
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  7. Danggui Buxue Decoction Attenuates HClinical, cosmetic and investigational dermatology · 2026
    Article
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  9. Frontiers in microbiology · 2026
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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.

Chen MaoDepartment of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China.
Jin-Qiu YuanScientific Research & International Exchange Department, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, China.
Yue-Bin LvNational Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing, 100021, China.
Xiang GaoNutritional Epidemiology Lab, Pennsylvania State University, Philadelphia, PA, USA.
Zhao-Xue YinNutritional Epidemiology Lab, Pennsylvania State University, Philadelphia, PA, USA.
Virginia Byers KrausDuke Molecular Physiology Institute and Division of Rheumatology, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA.
Jie-Si LuoDivision of Non-Communicable Disease Control and Community Health, Chinese Center for Disease Control and Prevention, Beijing, China.
Choy-Lye CheiProgram in Health Services and Systems Research, Duke-NUS Graduate Medical School, Singapore, Singapore.
David Bruce MatcharProgram in Health Services and Systems Research, Duke-NUS Graduate Medical School, Singapore, Singapore.
Yi ZengCenter for the study of Aging and Human Development and the Geriatric Division of School of Medicine, Duke University, Durham, North Carolina, USA.
Xiao-Ming ShiNational Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing, 100021, China. shixm@chinacdc.cn.

Funding

Resource Core 3 - Metabolomics CoreP30AG028716 · NIA · DUKE UNIVERSITY · PI Sarah B. Peskoe · 2006 to 2026
$24.6M
THE RANGE OF MALE-FEMALE MORTALITY DIFFERENCESP01AG031719 · NIA · DUKE UNIVERSITY · PI CHRISTENSEN, KAARE · 2009 to 2020
$10.2M
NIA NIH HHS P01 AG031719NIA NIH HHS P30 AG028716
6 · The paper itself

Abstract

backgroundOxidative stress is an important theory of aging but population-based evidence has been lacking. This study aimed to evaluate the associations between biomarkers of oxidative stress, including plasma superoxide dismutase (SOD) activity and malondialdehyde (MDA), with all-cause mortality in older adults.

methodsThis is a community-based cohort study of 2224 participants (women:1227, median age: 86 years). We included individuals aged 65 or above and with plasma SOD activity and/or MDA tests at baseline. We evaluated the hazard ratios (HRs) and 95% confidence intervals (CIs) by multivariable Cox models.

resultsWe documented 858 deaths during six years of follow-up. There was a significant interaction effect of sex with the association between SOD activity and mortality (P < 0.001). Compared with the lowest quintile, the risk of all-cause mortality was inversely associated with increasing quintiles of plasma SOD activity in women(P-trend< 0.001), with adjusted HRs for the second through fifth quintiles of 0.73 (95% CI 0.53-1.02), 0.52(95% CI 0.38-0.72), 0.53(95% CI 0.39-0.73), and 0.48(95% CI 0.35-0.66). There were no significant associations between SOD activity and mortality in men (P-trend = 0.64), and between MDA and mortality in all participants (P-trend = 0.79).

conclusionsIncreased activity of SOD was independently associated with lower all-cause mortality in older women but not in men. This epidemiological study lent support for the free radical/oxidative stress theory of aging.

Indexed as

AgedAged, 80 and overAge FactorsBiomarkersCohort StudiesFemaleFollow-Up StudiesHumansIndependent LivingMaleMalondialdehydeMortalityOxidative StressProspective StudiesSex FactorsSuperoxide DismutaseBiomarkersMalondialdehydeSuperoxide DismutaseAgingCohortMalondialdehydeMortalitySuperoxide dismutase

Identifiers

PMID30987591
PMCPMC6466801

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.