Evidence map›Paper›PMID 40136998›Full record

ArticleEpidemiologia (Basel, Switzerland)2025

Does Calm Always Follow the Storm? A Comprehensive Temporal Analysis of Emergency Department Visits in Northern Italy Before and After the COVID-19 Pandemic.

Maria José De la Rosa, Andrea Duca, Lorenzo Querci, Francesca Cortellaro, Martina Calderaro, Paolo Pausilli, Annalisa Bodina, Andrea Albonico, Gabriele Perotti, Carlo Signorelli and 1 more

Abstract read
In one paragraph

Article in Epidemiologia (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–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

6 citing papers in PubMed.

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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

11 authors.

Maria José De la RosaFaculty of Medicine, School of Public Health, Università Vita-Salute San Raffaele, 20132 Milan, Italy.ORCID 0009-0008-5818-9412
Andrea DucaAgenzia Regionale Emergenza Urgenza, 20124 Milan, Italy.ORCID 0000-0003-0035-9112
Lorenzo QuerciASST Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy.ORCID 0000-0002-2229-974X
Francesca CortellaroAgenzia Regionale Emergenza Urgenza, 20124 Milan, Italy.
Martina CalderaroASTIR Group, 20124 Milan, Italy.
Paolo PausilliAgenzia Regionale Emergenza Urgenza, 20124 Milan, Italy.
Annalisa BodinaAgenzia Regionale Emergenza Urgenza, 20124 Milan, Italy.
Andrea AlbonicoAgenzia Regionale Emergenza Urgenza, 20124 Milan, Italy.
Gabriele PerottiAgenzia Regionale Emergenza Urgenza, 20124 Milan, Italy.
Carlo SignorelliFaculty of Medicine, School of Public Health, Università Vita-Salute San Raffaele, 20132 Milan, Italy.ORCID 0000-0001-9710-4962
Massimo LombardoAgenzia Regionale Emergenza Urgenza, 20124 Milan, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

objectivesEmergency department (ED) crowding has become a pressing global concern exacerbated by the COVID-19 pandemic. No studies have addressed this issue in Europe during the post-pandemic period so far. This study examined ED visit volumes, patient acuity, hospital admission rates, emergency vehicle arrivals, and crowding metrics before, during, and after the pandemic.

methodsWe conducted a retrospective descriptive study including data on all ED visits in the Lombardy Region of Italy from January 2019 to December 2023. Furthermore, an inferential statistical analysis was performed to compare ED trends between 2019 and 2023.

resultsDuring the analyzed period, there were 15,515,128 visits across all Lombardy EDs. ED visits dropped from 3,514,426 in 2019 to 2,380,005 in 2020, then rebounded to 3,464,756 in 2023. In 2019, triage code distribution was 9.9% white, 68.7% green, 19.0% yellow, and 1.9% red. During the pandemic, the proportion of white and green codes decreased. By 2023, these comprised 80.7% of the total. The percentage of admitted patients was 11.9% in 2019, rose to 16.2% in 2020, and returned to 11.4% in 2023. The median ED length of stay (EDLOS) for admitted patients in 2023 was 5.2 h (IQR [2.1-17.4]), compared to 3.8 h (IQR [1.6-8.6]) in 2019 (

conclusionsIn 2023, ED visits in Lombardy increased, compared to the pandemic period, but remained below 2019 levels. The proportion of high-acuity codes and hospital admissions was slightly lower than in 2019. However, ED crowding metrics worsened. The high levels of lower-acuity visits and the deterioration in crowding metrics highlight systemic challenges within the healthcare system.

Indexed as

COVID-19crowdingemergency room visitsemergency servicehospital

Identifiers

PMID40136998
PMCPMC11940893

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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.