Proportion of ILI in outpatient visits (%)
|
26.1
|
24.8
|
23.2
|
Proportion of influenza in ILI (%)
|
23.3
|
13.3
|
9.5
|
Total No. of outpatient visits at SCHa
|
301,278
|
319,086
|
343,927
|
Estimated total no. of outpatient visits for ILI at SCHb
|
72,244 (61,292–83,196)
|
81,782 (71,199–92,365)
|
85,676 (79,117–92,235)
|
Estimated total no. of influenza-associated ILI at SCHc
|
8,956 (5,657–13,018)
|
7,172 (2,557–12,872)
|
10,965 (5,579–17,132)
|
Resident population of children <5 years in the catchment area of SCHd
|
99,622
|
111,663
|
123,207
|
Proportion of ILI who sought care at SCH (%)e
|
51.6
|
44.0
|
41.5
|
Incidence of influenza-associated ILI per 100 person-year
|
17.4 (11.0–25.3)
|
14.6 (5.2–26.2)
|
21.4 (10.9–33.5)
|