Evidence map›Paper›PMID 36397306›Full record

ArticlePrimary health care research & development2022

Association between vaccination and preventive routines on COVID-19-related mortality in nursing home facilities: a population-based systematic retrospective chart review.

Lena Nilsson, Christer Andersson, Lisa Kastbom, Rune Sjödahl

Open access · goldAbstract read
In one paragraph

Article in Primary health care research & development, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

8 citing papers in PubMed, 13 citations in OpenAlex.

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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

4 authors at 2 institutions in 1 country.

Lena NilssonDepartment of Anaesthesiology and Intensive Care, and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.ORCID 0000-0002-7489-9077
Christer AnderssonDepartment of Orthopedics, Linköping University Hospital, Linköping, Sweden.ORCID 0000-0001-5589-8282
Lisa KastbomDepartment of Health, Medicine, and Caring Sciences, Linköping University, Linköping, Sweden.ORCID 0000-0002-9860-7593
Rune SjödahlDepartment of Surgery and Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.ORCID 0000-0002-8058-1532
Linköping University · SELinköping University Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOlder and frail individuals are at high risk of dying from COVID-19, and residents in nursing homes (NHs) are overrepresented in death rates. We explored four different periods during the COVID-19 pandemic to analyze the effects of improved preventive routines and vaccinations, respectively, on mortality in NHs.

methodsWe undertook a population-based systematic retrospective chart review comprising 136 NH facilities in southeast Sweden. All residents, among these facilities, who died within 30 days after a laboratory-verified COVID-19 diagnosis during four separate 92-day periods representing early pandemic (second quarter 2020), middle of the pandemic (fourth quarter 2020), early post-vaccination phase (first quarter 2021), and the following post-vaccination phase (second quarter 2021). Mortality together with electronic chart data on demographic variables, comorbidity, frailty, and cause of death was collected.

resultsThe number of deaths during the four periods was 104, 120, 34 and 4, respectively, with a significant reduction in the two post-vaccination periods (

conclusionsVaccination against COVID-19 seems associated with a reduced number of deaths in NHs. We could not demonstrate an effect on mortality merely from the protective routines that were undertaken.

Indexed as

COVID-19FrailtyChild, PreschoolCOVID-19 TestingHumansNursing HomesPandemicsRetrospective StudiesVaccinationCOVID-19geriatricsmortalitynursing homesprimary careVaccination

Identifiers

PMID36397306
PMCPMC9706376
OpenAlexW4309509629

What OpenQuestion holds

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LicenceCC BY
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.