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. 2011 Apr 1;7(4):441–450. doi: 10.4161/hv.7.4.14188

Table 2.

Epidemiological inputs used in the model for elderly and at risk adults

Item Pneumococcal infection Base case Range Sources/comments
Incidence (per 100,000) NBPP 1136 728–2092 Jackson, et al. 2004:46 Value in 65+ on all CAP in US. Using the rate 30–50% of CAP are pneumococcal pneumonia, NBPP incidence was calculated.
BPP 51.5 18–85 WHO Weekly Epidemiologic Record 2008:84 Range of 24–85 in 65+ in industrialized countries. Minimum value of 18 from Kaplan 200247
Hospitalization rates NBPP 19.4% 15.5–23.3% For NBPP , value from Turkish MoH records and National Burden of Disease survey31,32 ±20% for the range
BPP 95.5% 76.4–100% Vila Corcoles, et al. 2006,7 which reports 1/22 IPD cases not being hospitalised, i.e., around 4.5%. The IPD hospitalization rate reported was therefore 95.5%. ± 20% for the range
Case fatality rate NBPP 0.036 0.004–0.068 Jackson, et al. 2004:46 (rate on 65+ in US for all CAP, CAP in outpatient for the minimum of the range, calculated value for the maximum of the range to have a mean at 0.036)
BPP 0.225 0.143–0.308 Middleton, et al. 2008:34 rate between 14.3% for 65–74 yo and 30.8% for 85+ yo (confirmed by WHO WER Oct 2008 saying that BPP CFR may reach 30–40% in elderly and in industrialized countries)4