Evidence map›Paper›PMID 33498724›Full record

ArticleVaccines2021

Clinical and Economic Outcomes Associated with Cell-Based Quadrivalent Influenza Vaccine vs. Standard-Dose Egg-Based Quadrivalent Influenza Vaccines during the 2018-19 Influenza Season in the United States.

Girishanthy Krishnarajah, Victoria Divino, Maarten J Postma, Stephen I Pelton, Vamshi Ruthwik Anupindi, Mitch DeKoven, Joaquin Mould-Quevedo

Open access · goldAbstract read
In one paragraph

Article in Vaccines, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 8% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
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  5. Effectiveness of Cell Culture-Based Influenza Vaccine, 2023-2024.Journal of the Pediatric Infectious Diseases Society · 2025
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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

7 authors at 4 institutions in 2 countries.

Girishanthy KrishnarajahSeqirus USA Inc., Summit, NJ 07901, USA.
Victoria DivinoIQVIA, Falls Church, VA 22042, USA.
Maarten J PostmaUnit of PharmacoTherapy, Epidemiology & Economics (PTE2), Department of Pharmacy, University of Groningen, 9700 Groningen, The Netherlands.
Stephen I PeltonDepartment of Epidemiology, Boston University Schools of Medicine and Public Health, Boston, MA 02118, USA.
Vamshi Ruthwik AnupindiIQVIA, Falls Church, VA 22042, USA.
Mitch DeKovenIQVIA, Falls Church, VA 22042, USA.
Joaquin Mould-QuevedoSeqirus USA Inc., Summit, NJ 07901, USA.
IQVIA (United States) · USSeqirus (United States) · USBoston University · USUniversity Medical Center Groningen · NL

Funding

Seqirus Vaccines Ltd N/A
6 · The paper itself

Abstract

Non-egg-based influenza vaccines eliminate the potential for egg-adapted mutations and potentially increase vaccine effectiveness. This retrospective study compared hospitalizations/emergency room (ER) visits and all-cause annualized healthcare costs among subjects aged 4-64 years who received cell-based quadrivalent (QIVc) or standard-dose egg-based quadrivalent (QIVe-SD) influenza vaccine during the 2018-19 influenza season. Administrative claims data (IQVIA PharMetrics

Indexed as

cell-basedeconomic assessmentegg-basedinfluenza vaccinereal-world evidencerelative vaccine effectivenessretrospective studies

Identifiers

PMID33498724
PMCPMC7911861
OpenAlexW3125941622

What OpenQuestion holds

Textmetadata
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.