Table 2.
Estimated annual incidence of influenza-associated influenza-like illness (ILI) and severe acute respiratory illness (SARI) in Shai-Osudoku and Ningo-Prampram Districts, May 2013 – April 2015
| Incidence of influenza-associated ILI and SARI (95% CI) | |||
|---|---|---|---|
| Number of cases per 100,000 persons | Population denominatorb | ||
| ILI | SARI | ||
| Overall (agea) | 895 (854- 937) | 33 (26 – 42) | 121,943 |
| Overall (age-month┼) | 844 (501 – 1099) | 30 (13 – 84) | |
| Age Group (agea) | |||
| 0 to 4 years | 3,811 (3,727 – 3,898) | 135 (120– 152) | 12,807 |
| 5 to 14 years | 1,026 (983 – 1,071) | 30 (23 – 39) | 29,888 |
| 15 to 24 years | 356 (331 – 383) | 16 (12 – 23) | 26,049 |
| 25 to 44 years | 327 (303 – 353) | 3 (1 – 7) | 32,865 |
| 45 to 64 years | 285 (263 – 309) | 33 (26 – 42) | 14,205 |
| ≥65 years | 246 (225 –268) | 28 (21 – 36) | 6,129 |
| Year of Study (agea) | |||
| Year 1 (May 2013 – April 2014) | 1080 (707 - 1367) | 28 (10 - 87) | |
| Year 2 (May 2014 – April 2015) | 608 (296 – 831) | 32 (16 - 81) | |
Number positive among those not tested determined using age-groupa or age-group-month┼ specific positivity rates among those tested (see Methods)
bPopulation for year 2014 (Dodowa Health and Demographic Surveillance System)