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Volume 22, Number 6—June 2016
Research

Heterogeneous and Dynamic Prevalence of Asymptomatic Influenza Virus Infections

Luis Furuya-Kanamori, Mitchell Cox, Gabriel J. Milinovich, Ricardo J. Soares Magalhaes, Ian M. Mackay, and Laith YakobComments to Author 
Author affiliations: Australian National University, Acton, Australian Capital Territory, Australia (L. Furuya-Kanamori); University of Queensland, Herston, Queensland, Australia (M. Cox, G.J. Milinovich, R.J. Soares Magalhaes); Queensland University of Technology, Kelvin Grove, Queensland, Australia (I.M. Mackay); London School of Hygiene and Tropical Medicine, London, UK (L. Yakob)

Main Article

Table 2

Variance attributable to predictors in univariate and multivariate regression models for asymptomatic and subclinical influenza infection prevalence, by study characteristics, as determined through a systematic review and meta-analysis of 55 studies

Model/characteristic
 Asymptomatic
 Subclinical
Univariate model
Influenza type/subtype 0.1599 0.0345
Laboratory test used to detect influenza 0.0043 0.0546
Hemisphere where study was conducted 0.0001 0.0159
Continent where study was conducted 0.0045 0.0213
Decade when study was conducted
 *
 0.0064
Multivariate model 0.1676† 0.1478‡

*Variance not reported because all the studies were from the same decade.
†Model adjusted for influenza type/subtype, laboratory test, and location (continent) of the study.
‡Model adjusted for influenza type/subtype, laboratory test, location (continent) of the study, and decade when the study was conducted.

Main Article

Page created: May 16, 2016
Page updated: May 16, 2016
Page reviewed: May 16, 2016
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