|Properties of the reference data|
|Influenza pandemic according to reference data in 2009|
|Reference data for…||Reference data source||Geographical level||Reporting delay*||Start week||Peak week||Duration (weeks)||Duration (days)|
|EMD-AT†, EP-AT†||Information on sick leave due to acute respiratory infections from a major Tyrolean health insurance.||regional||information for week x available on week x + 1||44||47||9||67$|
|EP-BE,||Notified influenza cases of the sentinel general practitioner system.||national||information for week x available on week x + 3||40||44||10||70|
|ED-ES||Notified influenza cases of the sentinel general practitioner system.||regional||information for week x available on week x + 3||41 (period 1)||43||8||56|
|(Autonomous Region Cantabria, Spain)||49 (period 2)|
*week: Monday (day 1), …, Sunday (day 7).
†The course of the autumn/winter wave was derived from regional data of the Tyrolean health insurance; the start week of the autumn/winter wave was derived from national data .
$last week of 2009 (week 52) contained 11 days.
Rosenkötter et al.
Rosenkötter et al. BMC Public Health 2013 13:905 doi:10.1186/1471-2458-13-905