Bulletin of the World Health Organization

The population-based burden of influenza-associated hospitalization in rural western Kenya, 2007–2009

Daniel R Feikin, Maurice O Ope, Barrack Aura, James A Fuller, Stella Gikunju, John Vulule, Zipporah Ng’ang’a, M Kariuki Njenga, Robert F Breiman & Mark Katz

Volume 90, Number 4, April 2012, 256-263A

Table 3. Patients hospitalized for respiratory illness and laboratory-confirmed influenza, by age and type of influenza virus, Bondo district, Kenya, June 2007–May 2009

Characteristic No. (%) of patients hospitalized with:
Respiratory illness (n = 3 924) Influenza, A virus (n = 177) Influenza, B virus (n = 28)
Female 2132 (54.3) 105 (59.3a) 19 (67.9)b
Age (years)
< 5 2301 (58.6) 81 (45.8)a 3 (10.7)b
5–19 529 (13.5) 27 (15.3)a 5 (17.9)b
20–34 499 (12.7) 37 (20.9)a 10 (35.7)b
35–49 317 (8.1) 20 (11.3)a 5 (17.9)b
≥ 50 278 (7.1) 12 (6.8)a 5 (17.9)b

a The denominator for this percentage is all hospitalized patients with influenza A virus.

b The denominator for this percentage is all hospitalized patients with influenza B virus.