Assortative social mixing and sex disparities in tuberculosis burden
Autor: | Richard J. Hayes, Peter J. Dodd, Debebe Shaweno, Katherine C. Horton |
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Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
Adult
Male Tuberculosis Science 030231 tropical medicine Social Interaction Biology Article law.invention Social Networking 03 medical and health sciences 0302 clinical medicine Sex Factors law medicine Prevalence Computational models Humans 030212 general & internal medicine Assortative mixing Mixing (physics) Multidisciplinary Assortativity Disease progression Bayes Theorem Middle Aged Models Theoretical medicine.disease Transmission (mechanics) Medicine Random mixing Social mixing Female Demography |
Zdroj: | Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021) Scientific Reports |
ISSN: | 2045-2322 |
Popis: | Globally, men have higher tuberculosis (TB) burden but the mechanisms underlying this sex disparity are not fully understood. Recent surveys of social mixing patterns have established moderate preferential within-sex mixing in many settings. This assortative mixing could amplify differences from other causes. We explored the impact of assortative mixing and factors differentially affecting disease progression and detection using a sex-stratified deterministic TB transmission model. We explored the influence of assortativity at disease-free and endemic equilibria, finding stronger effects during invasion and on increasing male:female prevalence (M:F) ratios than overall prevalence. Variance-based sensitivity analysis of endemic equilibria identified differential progression as the most important driver of M:F ratio uncertainty. We fitted our model to prevalence and notification data in examplar settings within a fully Bayesian framework. For our high M:F setting, random mixing reduced equilibrium M:F ratios by 12%(95%CrI 0 - 30%). Equalizing male case detection there led to a 20% (95%CrI 11 - 31%) reduction in M:F ratio over 10 years - insufficient to eliminate sex disparities. However, this potentially achievable improvement was associated with a meaningful 8%(95%CrI 4 - 14%) reduction in total TB prevalence over this time frame. |
Databáze: | OpenAIRE |
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