Evidence map›Paper›PMID 39714284›Full record

ArticleEmerging infectious diseases2025

Social Contact Patterns and Age Mixing before and during COVID-19 Pandemic, Greece, January 2020-October 2021.

Vasiliki Engeli, Sotirios Roussos, Nikolaos Demiris, Angelos Hatzakis, Vana Sypsa

Abstract read
In one paragraph

Article in Emerging infectious diseases, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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

5 authors.

Vasiliki Engeli
Sotirios Roussos
Nikolaos Demiris
Angelos Hatzakis
Vana Sypsa

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We collected social contact data in Greece to measure contact patterns before (January 2020) and during the COVID-19 pandemic (March 2020-October 2021) and assess the effects of social distancing over time. During lockdowns, mean daily contacts decreased to 2.8-5.9 (mean prepandemic 20.4). Persons >65 years of age retained the fewest contacts during the pandemic (2.1-4.1). Compared with the first lockdown (March-April 2020), the second lockdown (November-December 2020) and third lockdown (April 2021) showed higher numbers of contacts (incidence rate ratio 1.50 [95% CI 1.27-1.76] in second lockdown and 2.19 [95% CI 1.86-2.58] in third lockdown). In 2021, an increase in contacts was apparent, which persisted during the April 2021 lockdown among persons 18-64 years of age. Our study provides evidence of the waning observance of physical distancing. Effective risk communication alongside targeted social distancing could offer alternatives to repeated lockdowns.

Indexed as

Contact TracingCOVID-19PandemicsSARS-CoV-2AdolescentAdultAgedAge FactorsChildChild, PreschoolFemaleGreeceHumansInfantMaleMiddle Agedbasic reproduction numbercoronavirus diseaseCOVID-19Greecepandemicprevention and controlrespiratory infectionsSARS-CoV-2severe acute respiratory syndrome coronavirus 2social distancingsurveys and questionnairestransmissionviruseszoonoses

Identifiers

PMID39714284
PMCPMC11682816

What OpenQuestion holds

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Registered trials

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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.