Evidence map›Paper›PMID 28851446›Full record

ArticleScandinavian journal of trauma, resuscitation and emergency medicine2017

Daily volume of cases in emergency call centers: construction and validation of a predictive model.

Damien Viglino, Aurelien Vesin, Stephane Ruckly, Xavier Morelli, Rémi Slama, Guillaume Debaty, Vincent Danel, Maxime Maignan, Jean-François Timsit

Abstract readValidation Study
In one paragraph

Article in Scandinavian journal of trauma, resuscitation and emergency medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

  1. Observational
  2. Article
  3. Understanding EMS response times: a machine learning-based analysis.BMC medical informatics and decision making · 2025
    Article
  4. Review
  5. Article
  6. Article
  7. Observational
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

9 authors.

Damien ViglinoUniversity Grenoble Alps, Emergency Department and Mobile Intensive Care Unit, CHU Grenoble Alps, Grenoble, France. dviglino@chu-grenoble.fr.ORCID http://orcid.org/0000-0003-0622-7399
Aurelien VesinUniversity Grenoble Alps, INSERM U823, Institut Albert BONNIOT, Grenoble, France.
Stephane RucklyUniversity Grenoble Alps, INSERM U823, Institut Albert BONNIOT, Grenoble, France.
Xavier MorelliUniversity Grenoble Alps, INSERM U823, Institut Albert BONNIOT, Grenoble, France.
Rémi SlamaUniversity Grenoble Alps, INSERM U823, Institut Albert BONNIOT, Grenoble, France.
Guillaume DebatyUniversity Grenoble Alps, Emergency Department and Mobile Intensive Care Unit, CHU Grenoble Alps, Grenoble, France.
Vincent DanelUniversity Grenoble Alps, Emergency Department and Mobile Intensive Care Unit, CHU Grenoble Alps, Grenoble, France.
Maxime MaignanUniversity Grenoble Alps, Emergency Department and Mobile Intensive Care Unit, CHU Grenoble Alps, Grenoble, France.
Jean-François TimsitUniversity Grenoble Alps, INSERM U823, Institut Albert BONNIOT, Grenoble, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVariations in the activity of emergency dispatch centers are an obstacle to the rationalization of resource allocation. Many explanatory factors are well known, available in advance and could predict the volume of emergency cases. Our objective was to develop and evaluate the performance of a predictive model of daily call center activity.

methodsA retrospective survey was conducted on all cases from 2005 to 2011 in a large medical emergency call center (1,296,153 cases). A generalized additive model of daily cases was calibrated on data from 2005 to 2008 (1461 days, development sample) and applied to the prediction of days from 2009 to 2011 (1095 days, validation sample). Seventeen calendar and epidemiological variables and a periodic function for seasonality were included in the model.

resultsThe average number of cases per day was 507 (95% confidence interval: 500 to 514) (range, 286 to 1251). Factors significantly associated with increased case volume were the annual increase, weekend days, public holidays, regional incidence of influenza in the previous week and regional incidence of gastroenteritis in the previous week. The adjusted R for the model was 0.89 in the calibration sample. The model predicted the actual number of cases within ± 100 for 90.5% of the days, with an average error of -13 cases (95% CI: -17 to 8).

conclusionsA large proportion of the variability of the medical emergency call center's case volume can be predicted using readily available covariates.

Indexed as

Models, StatisticalCall CentersEmergenciesEmergency Medical ServicesFemaleFranceHumansIncidenceRetrospective StudiesEmergency medical servicesHealth service needs and demand/trendsModelsSafety management/methodsTheoretical

Identifiers

PMID28851446
PMCPMC5576313

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.