tetano
Editor, Senior Moderator
Emerg Infect Dis. 2018 Oct;24(10):1868-1873. doi: 10.3201/eid2410.171940.
[h=1]Evaluation of Nowcasting for Detecting and Predicting Local Influenza Epidemics, Sweden, 2009-2014.[/h] Spreco A, Eriksson O, Dahlstr?m ?, Cowling BJ, Timpka T.
[h=3]Abstract[/h] The growing availability of big data in healthcare and public health opens possibilities for infectious disease control in local settings. We prospectively evaluated a method for integrated local detection and prediction (nowcasting) of influenza epidemics over 5 years, using the total population in ?sterg?tland County, Sweden. We used routine health information system data on influenza-diagnosis cases and syndromic telenursing data for July 2009-June 2014 to evaluate epidemic detection, peak-timing prediction, and peak-intensity prediction. Detection performance was satisfactory throughout the period, except for the 2011-12 influenza A(H3N2) season, which followed a season with influenza B and pandemic influenza A(H1N1)pdm09 virus activity. Peak-timing prediction performance was satisfactory for the 4 influenza seasons but not the pandemic. Peak-intensity levels were correctly categorized for the pandemic and 2 of 4 influenza seasons. We recommend using versions of this method modified with regard to local use context for further evaluations using standard methods.
[h=4]KEYWORDS:[/h] Sweden; epidemiology; evaluation research; human influenza; infectious disease; influenza; nowcasting; signal detection analysis; surveillance; viruses
PMID: 30226160 DOI: 10.3201/eid2410.171940
Free full text
[h=1]Evaluation of Nowcasting for Detecting and Predicting Local Influenza Epidemics, Sweden, 2009-2014.[/h] Spreco A, Eriksson O, Dahlstr?m ?, Cowling BJ, Timpka T.
[h=3]Abstract[/h] The growing availability of big data in healthcare and public health opens possibilities for infectious disease control in local settings. We prospectively evaluated a method for integrated local detection and prediction (nowcasting) of influenza epidemics over 5 years, using the total population in ?sterg?tland County, Sweden. We used routine health information system data on influenza-diagnosis cases and syndromic telenursing data for July 2009-June 2014 to evaluate epidemic detection, peak-timing prediction, and peak-intensity prediction. Detection performance was satisfactory throughout the period, except for the 2011-12 influenza A(H3N2) season, which followed a season with influenza B and pandemic influenza A(H1N1)pdm09 virus activity. Peak-timing prediction performance was satisfactory for the 4 influenza seasons but not the pandemic. Peak-intensity levels were correctly categorized for the pandemic and 2 of 4 influenza seasons. We recommend using versions of this method modified with regard to local use context for further evaluations using standard methods.
[h=4]KEYWORDS:[/h] Sweden; epidemiology; evaluation research; human influenza; infectious disease; influenza; nowcasting; signal detection analysis; surveillance; viruses
PMID: 30226160 DOI: 10.3201/eid2410.171940
Free full text