Evidence map›Paper›PMID 33335428›Full record

ArticleClinical epidemiology2020

Survival of Hospitalized COVID-19 Patients in Northern Italy: A Population-Based Cohort Study by the ITA-COVID-19 Network.

Eliana Ferroni, Paolo Giorgi Rossi, Stefania Spila Alegiani, Gianluca Trifirò, Gisella Pitter, Olivia Leoni, Danilo Cereda, Massimiliano Marino, Michele Pellizzari, Massimo Fabiani and 4 more

Open access · goldAbstract read
In one paragraph

Article in Clinical epidemiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 3 pooled it
4.4field-weighted citation impact, top 4% 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

37 citing papers in PubMed, 3 syntheses or guidelines pooled it, 60 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

14 authors at 5 institutions in 1 country.

Eliana FerroniAzienda Zero of the Veneto Region, Padua, Italy.ORCID 0000-0003-4803-2004
Paolo Giorgi RossiAzienda Unità Sanitaria Locale - IRCCS, Reggio Emilia, Italy.ORCID 0000-0001-9703-2460
Stefania Spila AlegianiNational Center for Drug Research and Evaluation, Istituto Superiore Di Sanità, Rome, Italy.ORCID 0000-0003-0656-1346
Gianluca TrifiròDepartment of Biomedical and Dental Sciences and Morphofunctional Imaging - University of Messina, Messina, Italy.ORCID 0000-0003-1147-7296
Gisella PitterAzienda Zero of the Veneto Region, Padua, Italy.
Olivia LeoniDepartment of Health of Lombardy Region, Milan, Italy.
Danilo CeredaDepartment of Health of Lombardy Region, Milan, Italy.
Massimiliano MarinoAzienda Unità Sanitaria Locale - IRCCS, Reggio Emilia, Italy.
Michele PellizzariAzienda Zero of the Veneto Region, Padua, Italy.
Massimo FabianiDepartment of Infectious Diseases, Istituto Superiore Di Sanità, Rome, Italy.ORCID 0000-0002-5893-7117
Flavia RiccardoDepartment of Infectious Diseases, Istituto Superiore Di Sanità, Rome, Italy.ORCID 0000-0002-1582-6329
Janet SultanaDepartment of Biomedical and Dental Sciences and Morphofunctional Imaging - University of Messina, Messina, Italy.
Marco MassariNational Center for Drug Research and Evaluation, Istituto Superiore Di Sanità, Rome, Italy.ORCID 0000-0001-8442-4238
ITA-COVID Working Group
Istituto Superiore di Sanità · ITRegione del Veneto · ITAzienda Sanitaria Unità Locale di Reggio Emilia · ITRegione LombardiaUniversity of Messina · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionCOVID-19 case fatality rate in hospitalized patients varies across countries and studies. Reliable estimates, specific for age, sex, and comorbidities, are needed to monitor the epidemic, to compare the outcome in different settings, and to correctly design trials for COVID-19 interventions. The aim of this study was to provide population-based survival curves of hospitalized COVID-19 patients. MATERIALS AND

methodsA cohort study was conducted in three areas of Northern Italy, heavily affected by SARS-CoV-2 infection (Lombardy and Veneto Regions, and Reggio Emilia province), using a loco-regional COVID-19 surveillance system, linked to hospital discharge databases. We included all patients testing positive for SARS-CoV-2 RNA by RT-PCR on nasopharyngeal/throat swab samples who were hospitalized from 21 February to 21 April 2020. Kaplan-Meier survival estimates were calculated at 14 and 30 days for death in any setting, stratifying by age, sex, and the Charlson Index.

resultsOverall, 42,926 hospitalized COVID-19 patients were identified. Patients' median age was 69 years (IQR: 57-79), 62.6% were males, and 6.0% had a Charlson Index ≥3. Survival curves showed that 22.0% (95% CI 21.6-22.4) of patients died within 14 days and 27.6% (95% CI 27.2-28.1) within 30 days from hospitalization. Survival was higher in younger patients and in females. The negative impact of comorbidities on survival was more pronounced in younger age groups.

conclusionThe high fatality rate observed in the study (28% at 30 days) suggests that studies should focus on death as primary endpoint during a follow-up of at least one month.

Indexed as

cohort studyCOVID-19hospitalized patientsItalysurvival

Identifiers

PMID33335428
PMCPMC7737545
OpenAlexW3112769540

What OpenQuestion holds

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LicenceCC BY-NC
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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.