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Table 1 Summary of Hong Kong Influenza surveillance data

From: Characterizing Influenza surveillance systems performance: application of a Bayesian hierarchical statistical model to Hong Kong surveillance data

Y Data Description Type Period
Y1 flu-HA Hospital admissions with principle diagnosis of influenza Count 1998 to 2011
Y2 GOPC Weekly ILI consultations at sentinel general out-patient clinics per 1,000 consultations Percentage 1998 - 2011
Y3 CCC/KG Percentage of children at the sentinel child care centers and kindergartens with fever Percentage 2007 to 2011
Y4 GP Weekly ILI consultations at sentinel physicians’ offices per 1,000 consultations Percentage 1998 - 2011
Y5 RHE Average number of elderly with fever per day per 1,000 elderly at the residential care homes Percentage 2007 to 2011
Y6 Lab(%pos) Percentage of confirmed influenza cases among all the tested samples Percentage 1997 to 2009
Y7 P&I-HA Hospital admissions with principle diagnosis of pneumonia and influenza Count 1998 to 2011
Y8 P&I-HA (0-15 yr) Hospital admissions with principle diagnosis of pneumonia and influenza for patient aged 0 to 15 years old. Count 1998 to 2011
Y9 P&I-HA (65+ yr) Hospital admissions with principle diagnosis of pneumonia and influenza for patient aged over 65 years old. Count 1998 to 2011
Y10 Lab(#spm) Number of specimens received for laboratory testing Count 1997 to 2009
Y11 Lab(#pos) Number of specimens tested positive for influenza virus Count 1997 to 2009
Pandemic Only Data Series
Y12 DFC Number of ILI related patient visits at Designated Flu Clinics (8 clinics) Count June 13th 2009 – May 23rd 2010
Y13 NID Number of confirmed influenza infection reports from all registered medical practitioners in HK Count April 27th 2009 – October 8th 2010
Xc Incidence rate (5-14 yr) Reliable estimate for incidence rate among children between 5 to 14 years old based on a serological study Percentage June 15th 2009 – November 22nd 2009
Xa Incidence rate (all age) Reliable estimate for incidence rate for all age group based on a serological study Percentage June 15th 2009 – November 22nd 2009