Evidence map›Paper›PMID 27522060›Full record

ArticleThe journals of gerontology. Series A, Biological sciences and medical sciences2017

Changes in the Lethality of Frailty Over 30 Years: Evidence From Two Cohorts of 70-Year-Olds in Gothenburg Sweden.

Kristoffer Bäckman, Erik Joas, Hanna Falk, Arnold Mitnitski, Kenneth Rockwood, Ingmar Skoog

Abstract read
In one paragraph

Article in The journals of gerontology. Series A, Biological sciences and medical sciences, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

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

  1. Pooled it
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  8. Living Longer But Frailer? Temporal Trends in Life Expectancy and Frailty in Older Swedish Adults.The journals of gerontology. Series A, Biological sciences and medical sciences · 2024
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  9. Article
  10. Frailty Trends in an Older Veteran Subpopulation 1 Year Prior and Into the COVID-19 Pandemic Using CAN Scores.Federal practitioner : for the health care professionals of the VA, DoD, and PHS · 2023
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  11. Trends in Frailty Between 1990 and 2020 in Sweden Among 75-, 85-, and 95-Year-Old Women and Men: A Nationwide Study from Sweden.The journals of gerontology. Series A, Biological sciences and medical sciences · 2023
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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

6 authors.

Kristoffer BäckmanNeuropsychiatric Epidemiology Unit, Mölndal, Sweden.
Erik JoasNeuropsychiatric Epidemiology Unit, Mölndal, Sweden.
Hanna FalkNeuropsychiatric Epidemiology Unit, Mölndal, Sweden.
Arnold MitnitskiDepartment of Medicine, Dalhousie University, Halifax, Novo Scotia, Canada.
Kenneth RockwoodDepartment of Medicine, Dalhousie University, Halifax, Novo Scotia, Canada.
Ingmar SkoogNeuropsychiatric Epidemiology Unit, Mölndal, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWith aging, health deficits accumulate: people with few deficits for their age are fit, and those with more are frail. Despite recent reports of improved health in old age, how deficit accumulation is changing is not clear. Our objectives were to evaluate changes over 30 years in the degree of deficit accumulation and in the relationship between frailty and mortality in older adults.

methodsWe analyzed data from two population based, prospective longitudinal cohorts, assembled in 1971-1972 and 2000-2001, respectively. Residents of Gothenburg Sweden, systematically drawn from the Swedish population registry. The 1901-1902 cohort (N = 973) had a response rate of 84.8%; the 1930 cohort (N = 500) had a response rate of 65.1%. A frailty index using 36 deficits was calculated using data from physical examinations, assessments of physical activity, daily, sensory and social function, and laboratory tests. We evaluated mortality over 12.5 years in relation to the frailty index.

resultsMean frailty levels were the same (x¯ = 0.20, p = .37) in the 1901-1902 cohort as in the 1930 cohort. Although the frailty index was linked to the risk of death in both cohorts, the hazards ratio decreased from 1.67 per 0.1 increment in the frailty index for the first cohort to 1.32 for the second cohort (interaction term p = .005). DISCUSSION: Although frailty was as common at age 70 as before, its lethality appears to be less. Just why this is so should be explored further.

Indexed as

AgedAged, 80 and overFemaleFrail ElderlyGeriatric AssessmentHealth Status DisparitiesHealth Status IndicatorsHumansMaleMortalitySwedenCohort effectsDeficit accumulationFrail older adultsFrailty indexMortality

Identifiers

PMID27522060
PMCPMC5458400

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.