Evidence map›Paper›PMID 33955567›Full record

ArticleJournal of the American Geriatrics Society2021

The BNT162b2 vaccine is associated with lower new COVID-19 cases in nursing home residents and staff.

Marsida Domi, Michael Leitson, David Gifford, Anna Nicolaou, Kiran Sreenivas, Courtney Bishnoi

Open access · bronzeAbstract read
In one paragraph

Article in Journal of the American Geriatrics Society, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Resident Factors Associated With Breakthrough SARS-CoV-2 Infections.Journal of the American Medical Directors Association · 2023
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  7. Article
  8. Article
  9. Review
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  11. Article
  12. Managing the Impact of COVID-19 in Nursing Homes and Long-Term Care Facilities: An Update.Journal of the American Medical Directors Association · 2022
    Article
  13. Review
  14. Southeastern United States Predictors of COVID-19 in Nursing Homes.Journal of applied gerontology : the official journal of the Southern Gerontological Society · 2022
    Article
  15. Article
  16. Article
  17. Article
  18. Article
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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 at 1 institution in 1 country.

Marsida DomiCenter for Health Policy and Evaluation in LTC, American Health Care Association/National Center for Assisted Living (AHCA/NCAL), Washington, District of Columbia, USA.
Michael LeitsonCenter for Health Policy and Evaluation in LTC, American Health Care Association/National Center for Assisted Living (AHCA/NCAL), Washington, District of Columbia, USA.
David GiffordCenter for Health Policy and Evaluation in LTC, American Health Care Association/National Center for Assisted Living (AHCA/NCAL), Washington, District of Columbia, USA.
Anna NicolaouCenter for Health Policy and Evaluation in LTC, American Health Care Association/National Center for Assisted Living (AHCA/NCAL), Washington, District of Columbia, USA.
Kiran SreenivasCenter for Health Policy and Evaluation in LTC, American Health Care Association/National Center for Assisted Living (AHCA/NCAL), Washington, District of Columbia, USA.
Courtney BishnoiCenter for Health Policy and Evaluation in LTC, American Health Care Association/National Center for Assisted Living (AHCA/NCAL), Washington, District of Columbia, USA.
American Health Care Association · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

objectivesThe effectiveness of the BNT162b2 vaccine on preventing the spread of COVID-19 and deaths in nursing homes (NH) is unknown.

designWe used zero-inflated negative binomial mixed effects regressions to model the associations of time since the vaccine clinic ending the week of December 27, 2020 (cohort 1), January 3, 2021 (cohort 2), or January 10, 2021 (cohort 3) controlling for county rate of COVID-19, bed size, urban location, racial and ethnic census, and level of registered nurses with resident cases and deaths of COVID-19 and staff cases of COVID-19. SETTING AND

participantsAll 2501 NHs who held a vaccine clinic from the first 17 states to initiate clinics as part of the Pharmacy Partnership for Long-Term Care Program. MAIN OUTCOME(S) AND MEASURE(S): Adjusted Incidence Rate Ratio (IRR) for time in 3, 4, 5, and 6 weeks after the first vaccine clinic for resident cases and deaths of COVID-19 and staff cases of COVID-19.

resultsResident and staff cases trended downward in all three cohorts following the vaccine clinics. Time following the first clinic at 5 and 6 weeks was consistently associated with fewer resident cases (IRR: 0.68 [95% CI: 0.54-0.84], IRR: 0.64 [95% CI: 0.48-0.86], respectively); resident deaths (IRR: 0.59 [95% CI: 0.45-0.77], IRR: 0.45 [95% CI: 0.31-0.65], respectively); and staff cases (IRR: 0.64 [95% CI: 0.56-0.73], IRR: 0.51 [95% CI: 0.42-0.62], respectively). Other factors associated with fewer resident and staff cases included facilities with less than 50 certified beds and high nurse staffing per resident day (>0.987). Contrary to prior research, higher Hispanic non-white resident census was associated with fewer resident cases (IRR: 0.42, 95% CI: 0.31-0.56) and deaths (IRR: 0.18, 95% CI: 0.12-0.27).

conclusionsThe BNT162b2 vaccine is associated with decreased spread of SARS-CoV-2 in both residents and staff as well as decreased deaths among residents.

Indexed as

AgedBNT162 VaccineCohort StudiesCOVID-19COVID-19 VaccinesEthnicityHealth PersonnelHumansIncidenceMaleNursing HomesRacial GroupsUnited StatesBNT162 VaccineCOVID-19 VaccinesBNT162b2COVID-19health care workermortalitynursing homeSARS-CoV-2vaccination

Identifiers

PMID33955567
PMCPMC8242377
OpenAlexW3159263557

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.