Evidence map›Paper›PMID 32055762›Full record

ArticleAging medicine (Milton (N.S.W))2019

Sex differences in the relative heterogeneity of frailty in relation to age, frailty, health protection, and five-year mortality.

Zhan Yang, Chunxiu Wang, Zhe Tang, Xiaowei Song

Open access · diamondAbstract read
In one paragraph

Article in Aging medicine (Milton (N.S.W)), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.4field-weighted citation impact, top 36% 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

3 citing papers in PubMed, 6 citations in OpenAlex.

  1. How human and animal frailty index studies can inform each other: a brief narrative review.The journals of gerontology. Series A, Biological sciences and medical sciences · 2026
    Review
  2. Article
  3. 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

4 authors at 3 institutions in 2 countries.

Zhan YangDepartment of Science in Biology Crandall University Moncton NB Canada.ORCID https://orcid.org/0000-0002-6852-1342
Chunxiu WangDepartment of Evidence-based Medicine Beijing Xuanwu Hospital Capital Medical University Beijing China.
Zhe TangDepartment of Evidence-based Medicine Beijing Xuanwu Hospital Capital Medical University Beijing China.
Xiaowei SongHealth Sciences and Innovation Surrey Memorial Hospital Fraser Health Authority Surrey BC Canada.ORCID https://orcid.org/0000-0001-9589-2520
Capital Medical University · CNCrandall University · CAFraser Health · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrevious studies have suggested that the relative heterogeneity of frailty declines with increases in age and the level of the frailty index (FI). In this study, we investigated the sex difference in the relative heterogeneity of frailty and its response to health-protective factors, in a Chinese community sample.

methodsData used for this secondary analysis were obtained from the Beijing Longitudinal Study of Aging that involved 3257 community-dwelling Chinese people aged 55 years and older at baseline. An FI was constructed for each indicial using 35 variables assessing health-related problems. A protection index (PI) consisting of 27 variables assessing lifestyle and social engagement was also built. The relative heterogeneity of frailty, as measured by the coefficient of variation (CV) of the FI, was calculated as the ratio of the standard deviation to the mean FI for different age, FI, and PI groups, and for the five-year survival status.

resultsThe CV decreased with the increase in age (

conclusionsOur data demonstrate that a gender difference exists in the relative heterogeneity of frailty, which is negatively related to age and frailty as well as positively associated with health protection and the five-year survival.

Indexed as

agingcoefficient of variationfrailty indexprotection factorssex difference

Identifiers

PMID32055762
PMCPMC7003709
OpenAlexW2990982503

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.