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Projecting social contact matrices in 152 countries using contact surveys and demographic data

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Prem, Kiesha, Cook, Alex R., Jit, Mark·2017·PLOS Computational Biology

Abstract

Heterogeneities in contact networks have a major effect in determining whether a pathogen can become epidemic or persist at endemic levels. Epidemic models that determine which interventions can successfully prevent an outbreak need to account for social structure and mixing patterns. Contact patterns vary across age and locations (e.g. home, work, and school), and including them as predictors in transmission dynamic models of pathogens that spread socially will improve the models' realism. Data from population-based contact diaries in eight European countries from the POLYMOD study were projected to 144 other countries using a Bayesian hierarchical model that estimated the proclivity of age-and-location-specific contact patterns for the countries, using Markov chain Monte Carlo simulation. Household level data from the Demographic and Health Surveys for nine lower-income countries and socio-demographic factors from several on-line databases for 152 countries were used to quantify similarity of countries to estimate contact patterns in the home, work, school and other locations for countries for which no contact data are available, accounting for demographic structure, household structure where known, and a variety of metrics including workforce participation and school enrolment. Contacts are highly assortative with age across all countries considered, but pronounced regional differences in the age-specific contacts at home were noticeable, with more inter-generational contacts in Asian countries than in other settings. Moreover, there were variations in contact patterns by location, with work-place contacts being least assortative. These variations led to differences in the effect of social distancing measures in an age structured epidemic model. Contacts have an important role in transmission dynamic models that use contact rates to characterize the spread of contact-transmissible diseases. This study provides estimates of mixing patterns for societies for which contact data such as POLYMOD are not yet available.

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Metadata

Authors
Prem, K., Cook, A. R., & Jit, M.
Venue
PLOS Computational Biology
Published
2017-09-12
Volume
13
Issue
9
Pages
e1005697
ISSN
  • 1553-734X (ISSN-L)
  • 1553-7358
OpenAlex
W2755849266
Cited by
889
References
58
FWCI
42.65
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Projecting social contact matrices in 152 countries using contact surveys and demographic data. https://app.cochat.ai/papers/10.1371/journal.pcbi.1005697
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Prem, K., Cook, A. R., & Jit, M. (2017). Projecting social contact matrices in 152 countries using contact surveys and demographic data. PLOS Computational Biology. https://doi.org/10.1371/journal.pcbi.1005697

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