id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-312493-wbhji81g	Tay, Ee Laine	Exploring a Proposed WHO Method to Determine Thresholds for Seasonal Influenza Surveillance	2013-10-11		.txt	text/plain	4303	216	49	For all datasets, including the composite datasets, we aligned data on the median week of peak influenza or ILI activity and assigned three threshold levels: seasonal threshold, determined by inspection; and two intensity thresholds termed average and alert thresholds, determined by calculations of means, medians, confidence intervals (CI) and percentiles. Comparison of thresholds revealed variations in defining the start of a season but good agreement in describing the end and intensity of influenza seasons, except in hospital admissions data after the pandemic year of 2009. Four independent surveillance data sources were used: (i) the Victorian GPSS, (ii) sentinel data from the Melbourne Medical Deputising Service (MMDS), (iii) routine laboratoryconfirmed influenza (LAB data) from the Victorian Infectious Diseases Reference Laboratory (VIDRL) and the (iv) Victoria Admitted Episode Dataset (VAED) for hospital admissions. Comparison of thresholds derived from different datasets revealed variations in defining the start of a season but relatively good agreement in describing the end and intensity of influenza seasons, except in the hospital data after the pandemic year.	./cache/cord-312493-wbhji81g.txt	./txt/cord-312493-wbhji81g.txt